{"title":"Certified Dyes \u0026 Stains","description":"\u003cp data-start=\"555\" data-end=\"881\"\u003ePolysciences’ Certified Dyes \u0026amp; Stains collection offers Biological Stain Commission–certified dyes like Acid Fuchsin, Azure A, Light Green SF Yellowish, Crystal Violet, and others. These certified reagents ensure purity, reproducibility, and traceability for critical histology, cytology, and life sciences staining workflows.\u003c\/p\u003e","products":[{"product_id":"crystal-violet-ci-42555-certified-100","title":"Crystal Violet, certified by the Biological Stain Commission","description":"\u003cp\u003eCrystal Violet C.I. 42555, certified, is a biological stain used in Gram staining, histological staining, cytology, and cell-based laboratory staining applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSynonyms:\u003c\/strong\u003e Crystal Violet, Gentian Violet, Basic Violet 3, C.I. 42555.\u003c\/p\u003e\n\n\u003cp\u003eCrystal Violet is commonly used where strong visual contrast is required for microscopy and laboratory staining workflows. It is widely recognized as the primary stain in Gram staining procedures and may also be used in selected cell and tissue staining methods.\u003c\/p\u003e\n\n\u003cp\u003eResearchers and laboratory professionals use Crystal Violet in microbiology, histology, cytology, and cell biology workflows where a dependable certified stain is required.\u003c\/p\u003e\n\n\u003ch2\u003eKey Properties\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCertified biological stain\u003c\/li\u003e\n\u003cli\u003eC.I. 42555 dye\u003c\/li\u003e\n\u003cli\u003eCommonly used as the primary stain in Gram staining\u003c\/li\u003e\n\u003cli\u003eUsed in microbiology, histology, and cytology workflows\u003c\/li\u003e\n\u003cli\u003eProduces strong violet coloration for microscopy applications\u003c\/li\u003e\n\u003cli\u003eSuitable for laboratory staining and research use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\n\u003ch3\u003eGram Staining\u003c\/h3\u003e\n\u003cp\u003eCrystal Violet is widely used as the primary stain in Gram staining procedures for bacterial differentiation.\u003c\/p\u003e\n\n\u003ch3\u003eHistology \u0026amp; Cytology\u003c\/h3\u003e\n\u003cp\u003eThe dye may be used in laboratory staining workflows involving tissue sections, cells, and microscopic evaluation.\u003c\/p\u003e\n\n\u003ch3\u003eCell-Based Assays\u003c\/h3\u003e\n\u003cp\u003eCrystal Violet is commonly used in selected cell staining and cell viability-related assay workflows where stained cell material is measured or visualized.\u003c\/p\u003e\n\n\u003ch3\u003eGeneral Laboratory Staining\u003c\/h3\u003e\n\u003cp\u003eCertified Crystal Violet is useful for research and quality-controlled staining applications requiring a recognized biological dye.\u003c\/p\u003e\n\n\u003ch2\u003eCompatibility \u0026amp; Bonding Considerations\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCommonly used in aqueous or alcohol-based staining preparations\u003c\/li\u003e\n\u003cli\u003eCompatible use depends on the staining protocol and formulation\u003c\/li\u003e\n\u003cli\u003ePerformance may vary with concentration, fixation method, and sample type\u003c\/li\u003e\n\u003cli\u003eFollow validated laboratory protocols for intended use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFinal staining intensity and contrast depend on formulation, sample preparation, staining time, differentiation steps, and microscopy method.\u003c\/p\u003e\n\n\u003ch2\u003eApplication Tips\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003ePrepare staining solutions according to the applicable protocol\u003c\/li\u003e\n\u003cli\u003eUse clean glassware and appropriate laboratory-grade solvents\u003c\/li\u003e\n\u003cli\u003eFilter solutions if particulate clarity is required\u003c\/li\u003e\n\u003cli\u003eValidate concentration and staining time for each sample type\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHandling \u0026amp; Storage\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eStore tightly sealed in a cool, dry environment\u003c\/li\u003e\n\u003cli\u003eProtect from unnecessary light and moisture exposure\u003c\/li\u003e\n\u003cli\u003eAvoid inhalation of dust and contact with skin or eyes\u003c\/li\u003e\n\u003cli\u003eFollow standard chemical handling procedures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr class=\"pdp-divider\"\u003e\n\n\u003ch3\u003eWhy Choose Polysciences?\u003c\/h3\u003e\n\n\u003cdiv class=\"pdp-trust-signals\" style=\"display:grid;grid-template-columns:repeat(2,1fr);gap:14px;max-width:560px;margin:24px 0;\"\u003e\n\n  \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Research_Labs.png?v=1778099422\" alt=\"Research laboratories icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n    \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003e\n      Trusted by 6,000+ Researchers Worldwide\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Peer-Reviewed.png?v=1778099423\" alt=\"Peer reviewed studies icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n    \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003e\n      Cited in Thousands of Peer-Reviewed Studies\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/USA.png?v=1778099422\" alt=\"Made in USA icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n    \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003e\n      U.S. Manufacturing \u0026amp; Global Distribution\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Delivery.png?v=1778099422\" alt=\"Global delivery icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n    \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003e\n      Reliable Delivery to 40+ Countries\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003eClick a question to expand.\u003c\/p\u003e\n\n\u003cdiv class=\"faq-accordion\"\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e1. What is Crystal Violet C.I. 42555 used for?\u003c\/summary\u003e\n\u003cp\u003eCrystal Violet C.I. 42555 is used as a biological stain in Gram staining, histology, cytology, and selected cell staining workflows.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e2. Is Crystal Violet used in Gram staining?\u003c\/summary\u003e\n\u003cp\u003eYes. Crystal Violet is commonly used as the primary stain in Gram staining procedures.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e3. What are common synonyms for Crystal Violet?\u003c\/summary\u003e\n\u003cp\u003eCommon names include Crystal Violet, Gentian Violet, Basic Violet 3, and C.I. 42555.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e4. Can Crystal Violet be used for cell staining?\u003c\/summary\u003e\n\u003cp\u003eYes. Crystal Violet is commonly used in selected cell staining and cell-based assay workflows, depending on the validated protocol.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e5. How should Crystal Violet be handled?\u003c\/summary\u003e\n\u003cp\u003eHandle Crystal Violet using standard laboratory precautions, avoid dust exposure, and refer to the Safety Data Sheet for complete guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\u003ch2\u003eSafety \u0026amp; Documentation\u003c\/h2\u003e\n\n\u003cp\u003eUse Crystal Violet with appropriate laboratory safety precautions. Refer to the product Safety Data Sheet (SDS) for complete handling, storage, and safety guidance.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"00022-100 (100 G)","offer_id":46425659506902,"sku":"00022-100","price":144.2,"currency_code":"USD","in_stock":true},{"title":"00022-25 (25 G)","offer_id":46425659539670,"sku":"00022-25","price":61.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/logo_only_a980e39b-dc15-4bd4-8383-c9b0cb15dbda-160313.jpg?v=1737983003"},{"product_id":"coomassiesupsup-blue-r250-ci-42660","title":"Coomassie® blue R250, C.I. 42660","description":"\u003cdiv class=\"pdp-content-block\"\u003e\n\n  \u003cdiv class=\"pdp-eyebrow\"\u003e⟡ Protein Stains \/ SDS-PAGE Dyes \/ Electrophoresis Reagents\u003c\/div\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCoomassie® Blue R250, C.I. 42660\u003c\/strong\u003e is a rapid-acting protein stain commonly used for visualization of proteins in SDS-PAGE and polyacrylamide gel electrophoresis applications. The dye provides sensitive staining performance for protein detection in electrophoresis workflows.\u003c\/p\u003e\n\n  \u003cp\u003eAlso known as Brilliant Blue R250 and Acid Blue 83, this dye is widely used in molecular biology, biochemistry, and protein analysis laboratories for gel staining and protein visualization procedures.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRapid protein staining:\u003c\/strong\u003e suitable for SDS-PAGE gel visualization workflows\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSensitive dye formulation:\u003c\/strong\u003e supports protein detection in electrophoresis gels\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWidely used laboratory stain:\u003c\/strong\u003e common in molecular biology and biochemistry applications\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatible with polyacrylamide gels:\u003c\/strong\u003e suitable for PAGE and SDS-PAGE procedures\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMultiple recognized names:\u003c\/strong\u003e also known as Brilliant Blue R250 and Acid Blue 83\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStrong visible absorbance:\u003c\/strong\u003e λmax approximately 588 nm\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct name:\u003c\/strong\u003e Coomassie® Blue R250\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eC.I. number:\u003c\/strong\u003e 42660\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 6104-59-2\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlternative names:\u003c\/strong\u003e Brilliant Blue R250; Acid Blue 83\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eλmax:\u003c\/strong\u003e 588 nm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e SDS-PAGE staining, protein visualization, electrophoresis, polyacrylamide gel staining\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\n  \u003cp\u003e\u003cstrong\u003eSDS-PAGE protein staining\u003c\/strong\u003e\u003cbr\u003e\n  Commonly used for visualization of protein bands in SDS-polyacrylamide gel electrophoresis workflows.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003ePolyacrylamide gel electrophoresis\u003c\/strong\u003e\u003cbr\u003e\n  Suitable for staining PAGE gels used in protein separation and analysis procedures.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eProtein analysis workflows\u003c\/strong\u003e\u003cbr\u003e\n  Used in molecular biology and biochemistry laboratories for protein detection and gel documentation.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eResearch laboratory applications\u003c\/strong\u003e\u003cbr\u003e\n  Frequently utilized in protein purification, analytical electrophoresis, and teaching laboratory workflows.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eFunctional Properties\u003c\/h3\u003e\n\n  \u003cp\u003eCoomassie® Blue R250 binds to proteins within polyacrylamide gels to produce visible blue-stained protein bands following electrophoretic separation.\u003c\/p\u003e\n\n  \u003cp\u003eThe dye is widely used because it provides relatively rapid staining and sensitive visualization for routine protein electrophoresis applications.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eWhy Use Coomassie® Blue R250?\u003c\/h3\u003e\n\n  \u003cp\u003eCoomassie® Blue R250 is commonly selected for protein gel staining because it provides reliable visualization of proteins separated by SDS-PAGE and related electrophoresis techniques.\u003c\/p\u003e\n\n  \u003cp\u003eIts widespread use in molecular biology and biochemical laboratories makes it a standard staining reagent for routine protein analysis workflows.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eHandling \u0026amp; Storage\u003c\/h3\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eStore in a cool, dry laboratory environment.\u003c\/li\u003e\n    \u003cli\u003eKeep containers tightly sealed when not in use.\u003c\/li\u003e\n    \u003cli\u003eHandle using appropriate laboratory protective equipment.\u003c\/li\u003e\n    \u003cli\u003eAvoid unnecessary exposure to dust or staining solutions.\u003c\/li\u003e\n    \u003cli\u003eConsult the SDS for complete safety, storage, and handling information.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"pdp-divider\"\u003e\n\n  \u003ch3\u003eWhy Choose Polysciences?\u003c\/h3\u003e\n\n  \u003cdiv class=\"pdp-trust-signals\" style=\"display:grid;grid-template-columns:repeat(2,1fr);gap:14px;max-width:560px;margin:24px 0;\"\u003e\n    \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Research_Labs.png?v=1778099422\" alt=\"Research laboratories icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n      \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003eTrusted by 6,000+ Researchers Worldwide\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Peer-Reviewed.png?v=1778099423\" alt=\"Peer reviewed studies icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n      \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003eCited in Thousands of Peer-Reviewed Studies\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/USA.png?v=1778099422\" alt=\"Made in USA icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n      \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003eU.S. Manufacturing \u0026amp; Global Distribution\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Delivery.png?v=1778099422\" alt=\"Global delivery icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n      \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003eReliable Delivery to 40+ Countries\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003chr\u003e\n\n  \u003ch2\u003eFAQ\u003c\/h2\u003e\n\n  \u003cp\u003eClick a question to expand.\u003c\/p\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eWhat is Coomassie® Blue R250 used for?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eIt is used for staining proteins in SDS-PAGE and polyacrylamide gel electrophoresis applications.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eIs Coomassie® Blue R250 suitable for SDS gels?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eYes. It is commonly used as a rapid and sensitive stain for SDS-PAGE protein gels.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eWhat are alternative names for this dye?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eCoomassie® Blue R250 is also known as Brilliant Blue R250 and Acid Blue 83.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eWhat is the λmax of Coomassie® Blue R250?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eThe listed absorbance maximum is approximately 588 nm.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eWhat is the CAS number for Coomassie® Blue R250?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eThe CAS number is 6104-59-2.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Polysciences","offers":[{"title":"00352-10 (10 g)","offer_id":46425660063958,"sku":"00352-10","price":37.21,"currency_code":"USD","in_stock":true},{"title":"00352-100 (100 g)","offer_id":46425660096726,"sku":"00352-100","price":103.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/NEW_24608_2_1_ce83bb19-a6c6-4b72-ac2f-4fa52e5b1b63.png?v=1738253345"},{"product_id":"orange-g-ci-16230-certified","title":"Orange G, C.I. 16230, certified","description":"\u003cp\u003eMallory's stain for collagen in connective tissue. Also useful as a stain for granules, elastic fibers, mast cells, and pollen tubes. A general histology and cytology counterstain.\n\u003cbr\u003eAcid orange 10; Xylene fast orange G; 7-Hydroxy-8-phenylazo-1,3-naphthalenedisulfonic acid λmax 475nm.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"00968-100 (100 g)","offer_id":46425662554326,"sku":"00968-100","price":149.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/logo_only_24bce481-e983-465a-9eec-65785b72cfbe-524341.jpg?v=1737983507"},{"product_id":"phosphomolybdic-acid-hydrate-acs-grade","title":"Phosphomolybdic acid hydrate, ACS grade","description":"\u003cp\u003eElectron dense metal stain.(12-Molybdophosphoric acid)\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"01021-25 (25 g)","offer_id":46425662619862,"sku":"01021-25","price":96.98,"currency_code":"USD","in_stock":true},{"title":"01021-5 (5 g)","offer_id":46425662652630,"sku":"01021-5","price":71.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/01021_cc3a34f0-4b11-4ccd-bf70-404040a35cdc-828522.jpg?v=1737983563"},{"product_id":"thionin-acetate-certified-by-biological-stain-commission-25-25-25-25-25","title":"Thionin Acetate, certified by Biological Stain Commission","description":"\u003cp\u003eThionin Acetate produces a vivid blue to purple coloration, offering excellent contrast for visualizing cellular and tissue structures. It is particularly effective for staining nucleic acids, including DNA and RNA, and is commonly used to highlight neuronal cell bodies and other specific tissue components. It is effective in nucleic acid staining, aiding in the detailed examination of tissues and cells.\u003c\/p\u003e\n\n\u003cp\u003eCommon applications: neurohistology, routine histology, and specialized cytological applications.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"01220-25 (25G)","offer_id":46425663340758,"sku":"01220-25","price":236.9,"currency_code":"USD","in_stock":true},{"title":"01220-5 (5G)","offer_id":46425663373526,"sku":"01220-5","price":82.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/logo_only_a09cf97d-a25e-4709-b808-63e321deb34b-731733.jpg?v=1737984161"},{"product_id":"toluidine-blue-o-ci-52040-certified-1","title":"Toluidine blue O, certified by the Biological Stain Commission","description":"\u003cp\u003eA metachromatic, cationic thiazine dye that is widely used in in vitro biological applications. It has also been used in techniques for DNAase detection. λmax 626nm\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"01234-10 (10 g)","offer_id":46425663439062,"sku":"01234-10","price":164.8,"currency_code":"USD","in_stock":true},{"title":"01234-25 (25 g)","offer_id":46425663471830,"sku":"01234-25","price":303.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/01234-toluidine-blue-o_a955ca49-5c84-40d9-a1af-e2abb7d16c9a-713372.jpg?v=1737984161"},{"product_id":"aniline-blue-ci-42755-certified-water-soluble","title":"Aniline blue, C.I. 42755, Certified, Water-soluble","description":"\u003cp\u003eUsed as contrast stain in histology and cytology and as a pH indicator (pH 10.0-13.0). Used with acid fuchsin as Mallory's connective tissue stain. Also used to visualize chromosomes and cellulose wall implants. (Acid blue 22).\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02570-25 (25 g)","offer_id":46425670451414,"sku":"02570-25","price":133.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/02570-25_aniline_blue_1_164f90e6-c060-4b38-9f66-eb6bc959e1bb-670549.jpg?v=1737982894"},{"product_id":"carmine-ci-75470-certified-25-25-25-25-25","title":"Carmine, certified by the Biological Stain Commission","description":"\u003cp\u003eCarmine, BSC certified provides rich, red coloration, which enhances contrast and visibility of cellular and tissue structures. Its deep staining quality is ideal for highlighting specific cellular components and tissue elements with clarity. It dissolves in water or alcohol for staining applications.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02729-25 (25 G)","offer_id":46425675268310,"sku":"02729-25","price":162.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/02729-25_carmine_650c8667-3ad0-4c25-b574-4929b2f706ca-180238.jpg?v=1737982945"},{"product_id":"chlorazole-black-e-ci-30235-certified","title":"Chlorazole black E, C.I. 30235, certified","description":"\u003cp\u003eA valuable stain in general histology and cytology. Gives sharp, clear-cut pictures of both nuclei and cytoplasmic structures. Also useful for differentiation of fungi.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02730-25 (25 g)","offer_id":46425675301078,"sku":"02730-25","price":147.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/logo_only_d9409bb0-c6d4-4f03-a9c6-0ddb4c53990c-325648.jpg?v=1737983001"},{"product_id":"congo-red-ci-22120-certified-direct-red-28","title":"Congo red, C.I. 22120, certified (Direct red 28)","description":"\u003cp\u003eAnionic metachromatic dye. Good contrast stain or counterstain. Specific stain for amyloids in pathology. Also, a pH indicator; transition interval: pH 3.0 (blue) to 5.0 (red).λ max: 497nm\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02736-25 (25 g)","offer_id":46425675727062,"sku":"02736-25","price":148.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/logo_only_9065cf8f-0e56-4558-9b33-1cdcd2bf508d-230924.jpg?v=1737983002"},{"product_id":"eosin-y-ci-45380-certified","title":"Eosin Y, C.I. 45380, certified","description":"\u003cp\u003eCytoplasmic counterstain. Component of Wright stain and Tetrachrome stain.(Eosin yellowish; Acid red 87; 2',4',5',7'-Tetrabromo-fluorescein, disodium salt)λmax: 517nm\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02740-50 (50 g)","offer_id":46425675759830,"sku":"02740-50","price":87.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/02740_99bed37a-4ab0-4fea-b522-7554baa023dd-216860.jpg?v=1737983052"},{"product_id":"fast-green-fcf-ci-42053-certified","title":"Fast green FCF, C.I. 42053, certified","description":"\u003cp\u003e(Food green 3). Sensitive stain for proteins in polyacrylamide gels. Especially suitable in isoelectric focusing. Also suitable for use as a cytological counterstain, and mammalian tissue stain for muscle and collagen. λ max 622-626nm.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02745-100 (100 g)","offer_id":46425676185814,"sku":"02745-100","price":348.16,"currency_code":"USD","in_stock":true},{"title":"02745-25 (25 g)","offer_id":46425676218582,"sku":"02745-25","price":132.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/02745_23e3c679-f128-43c3-a4e3-158d271722c3-624393.jpg?v=1737983052"},{"product_id":"hematoxylin-ci-75290-certified-natural-black-1","title":"Hematoxylin, C.I. 75290, certified (Natural black 1)","description":"\u003cp\u003eNuclear protein stain and glycogen stain. Also a general tissue stain for human, animal and VIR histology.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02749-100 (100 g)","offer_id":46425676251350,"sku":"02749-100","price":138.84,"currency_code":"USD","in_stock":true},{"title":"02749-25 (25 g)","offer_id":46425676284118,"sku":"02749-25","price":116.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/02749_a5b16d79-712d-4dcc-8610-ce0172c2ef9f-257435.jpg?v=1737983251"},{"product_id":"light-green-sf-yellowish-ci-42095-certified","title":"Light green SF yellowish, C.I. 42095, certified","description":"\u003cp\u003eUsed as a dye and as a biological stain. Certified for use as a counterstain in cytology. An important contrast stain for plasma as a critical component of Papanicolaou (PAP) stains. Stains collagen fibers when substituted for aniline blue in Masson's trichrome.λ max 630(422)nm\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02753-25 (25 g)","offer_id":46425676316886,"sku":"02753-25","price":149.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/02753_light_green_sf_yellowsish_1_d68ee746-a071-40bc-9746-dad434c14a56-652781.jpg?v=1737983310"},{"product_id":"safranin-o-ci-50240-certified","title":"Safranin O, C.I. 50240, certified","description":"\u003cp\u003eA general biological stain. Used as a nuclear stain for histological studies. Also used as a cationic lipophilic probe and in the detection of glycosaminoglycans and proteoglycans.\n\u003cbr\u003e(Basic red 2; 3,7-Diamino-2,8-dimethyl-5-phenylphenazinium chloride) λ max 530nm.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02782-25 (25 g)","offer_id":46425676742870,"sku":"02782-25","price":89.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/02782_2b22bec5-0310-42d1-9837-8c2dd6e24822-639555.jpg?v=1737984040"},{"product_id":"wright-stain-certified","title":"Wright Stain, certified by the Biological Stain Commission","description":"\u003cp\u003eUseful for staining blood films and malarial parasites in blood films.\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"02785-100 (100 g)","offer_id":46425677201622,"sku":"02785-100","price":294.83,"currency_code":"USD","in_stock":true},{"title":"02785-25 (25 g)","offer_id":46425677234390,"sku":"02785-25","price":120.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/NEW_02785_1_1_f630d1d4-0a3d-4870-bb79-7d158d1a2461.png?v=1738253279"},{"product_id":"biebrich-scarlet-ci-26905","title":"Biebrich scarlet, C.I. 26905","description":"\u003cdiv class=\"pdp-content-block\"\u003e\n\n  \u003cdiv class=\"pdp-eyebrow\"\u003e⟡ Histology Stains \/ Plasma Stains \/ Microscopy Dyes\u003c\/div\u003e\n\n  \u003cp\u003e\u003cstrong\u003eBiebrich Scarlet, C.I. 26905\u003c\/strong\u003e is a laboratory staining dye widely used as a counterstain and plasma stain in histology, pathology, and microscopy workflows. Also known as Acid Red 66 or Ponceau B, this red dye supports tissue differentiation and contrast enhancement in multi-step staining procedures.\u003c\/p\u003e\n\n  \u003cp\u003eWith a reported λ max of 505 nm, Biebrich Scarlet is commonly selected for histological staining applications requiring strong red coloration, reliable tissue visualization, and compatibility with connective tissue and plasma staining protocols.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHistology stain:\u003c\/strong\u003e widely used in tissue staining and microscopy applications\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCounterstaining dye:\u003c\/strong\u003e improves contrast in multi-step staining workflows\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePlasma stain:\u003c\/strong\u003e useful for selective red staining of plasma and tissue components\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStrong red coloration:\u003c\/strong\u003e supports tissue differentiation and visualization\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eResearch laboratory use:\u003c\/strong\u003e suitable for pathology, histology, and microscopy protocols\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eProduct Details\u003c\/h3\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct name:\u003c\/strong\u003e Biebrich Scarlet\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eColor index:\u003c\/strong\u003e C.I. 26905\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlternative names:\u003c\/strong\u003e Acid Red 66; Ponceau B\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Histology stain and counterstain\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Plasma staining and tissue visualization\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eλ max:\u003c\/strong\u003e 505 nm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eResearch areas:\u003c\/strong\u003e Histology, pathology, microscopy, and laboratory staining protocols\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\n  \u003cp\u003e\u003cstrong\u003eHistology staining\u003c\/strong\u003e\u003cbr\u003e\n  Used in tissue staining protocols requiring strong red coloration and contrast enhancement for microscopic evaluation.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCounterstaining workflows\u003c\/strong\u003e\u003cbr\u003e\n  Frequently incorporated into multi-step staining methods to improve differentiation of tissue structures and cellular components.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003ePlasma staining\u003c\/strong\u003e\u003cbr\u003e\n  Useful as a plasma stain in laboratory protocols involving connective tissue and cytoplasmic visualization.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eMicroscopy \u0026amp; pathology research\u003c\/strong\u003e\u003cbr\u003e\n  Supports staining applications across pathology, life science research, and microscopy laboratories.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eFunctional Properties\u003c\/h3\u003e\n\n  \u003cp\u003eBiebrich Scarlet provides strong red staining characteristics that support tissue contrast and microscopic visualization in histological workflows.\u003c\/p\u003e\n\n  \u003cp\u003eThe dye is commonly used in research and diagnostic staining applications where reproducible coloration and compatibility with established staining protocols are required.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eWhy Use Biebrich Scarlet?\u003c\/h3\u003e\n\n  \u003cp\u003eBiebrich Scarlet remains a widely used laboratory staining dye because of its effectiveness as a counterstain and plasma stain across histology and microscopy applications.\u003c\/p\u003e\n\n  \u003cp\u003eResearchers and laboratory professionals frequently select Biebrich Scarlet for tissue staining workflows requiring vivid coloration, reliable staining performance, and compatibility with established histological methods.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eHandling \u0026amp; Storage\u003c\/h3\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eStore in a cool, dry environment away from direct light and moisture.\u003c\/li\u003e\n    \u003cli\u003eKeep container tightly sealed when not in use.\u003c\/li\u003e\n    \u003cli\u003eAvoid contamination during laboratory handling procedures.\u003c\/li\u003e\n    \u003cli\u003eUse appropriate laboratory protective equipment during handling.\u003c\/li\u003e\n    \u003cli\u003eConsult the SDS for complete safety and handling information.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"pdp-divider\"\u003e\n\n  \u003ch3\u003eWhy Choose Polysciences?\u003c\/h3\u003e\n\n  \u003cdiv class=\"pdp-trust-signals\" style=\"display:grid;grid-template-columns:repeat(2,1fr);gap:14px;max-width:560px;margin:24px 0;\"\u003e\n    \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Research_Labs.png?v=1778099422\" alt=\"Research laboratories icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n      \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003eTrusted by 6,000+ Researchers Worldwide\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Peer-Reviewed.png?v=1778099423\" alt=\"Peer reviewed studies icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n      \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003eCited in Thousands of Peer-Reviewed Studies\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/USA.png?v=1778099422\" alt=\"Made in USA icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n      \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003eU.S. Manufacturing \u0026amp; Global Distribution\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border:1px solid #17458f;border-radius:10px;padding:18px 14px;text-align:center;background:#fff;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/Delivery.png?v=1778099422\" alt=\"Global delivery icon\" style=\"width:42px;height:42px;object-fit:contain;display:block;margin:0 auto 12px;\"\u003e\n      \u003cdiv style=\"font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;color:#12386b;\"\u003eReliable Delivery to 40+ Countries\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003chr\u003e\n\n  \u003ch2\u003eFAQ\u003c\/h2\u003e\n\n  \u003cp\u003eClick a question to expand.\u003c\/p\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eWhat is Biebrich Scarlet used for?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eBiebrich Scarlet is commonly used as a histology stain, counterstain, and plasma stain in microscopy and pathology workflows.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eWhat are other names for Biebrich Scarlet?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eBiebrich Scarlet is also known as Acid Red 66 and Ponceau B.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eWhat is the λ max of Biebrich Scarlet?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eBiebrich Scarlet has a reported absorption maximum (λ max) of 505 nm.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eIs Biebrich Scarlet used in histology?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eYes. Biebrich Scarlet is widely used in histology and tissue staining protocols requiring strong red coloration and tissue contrast.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cstrong\u003eWhere can I buy Biebrich Scarlet stain?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003ePolysciences supplies Biebrich Scarlet, C.I. 26905 for laboratory staining, histology, microscopy, and research applications.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Polysciences","offers":[{"title":"03336-100 (100 g)","offer_id":46425681854678,"sku":"03336-100","price":116.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/03336-100_biebrich_scarlet_6c93233c-89bf-460e-8982-472a3630aad3-839448.jpg?v=1737982895"},{"product_id":"coomassiesupsup-blue-g250-ci-42655","title":"Coomassie® Blue G250, C.I. 42655","description":"\u003cp\u003eProtein stain for SDS gels. Used in dye binding techniques for protein quantification.(Coomassie blue® G250; Brilliant blue G250; Acid blue 90)λmax 610nm\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"03707-10 (10 g)","offer_id":46425683034326,"sku":"03707-10","price":60.89,"currency_code":"USD","in_stock":true},{"title":"03707-100 (100 g)","offer_id":46425683067094,"sku":"03707-100","price":199.54,"currency_code":"USD","in_stock":true},{"title":"03707-50 (50 g)","offer_id":46425683099862,"sku":"03707-50","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/03707_3784ccfc-a855-4b03-86bd-fb5d806f3ec7-793839.jpg?v=1737983003"},{"product_id":"acridine-orange-ci-46005-very-high-purity","title":"Acridine orange, C.I. 46005, very high purity","description":"\u003cp\u003eDNA intercalating dye. A grade of acridine orange of exceptionally high purity, suitable for quantitative work. Free of inorganic salts. A specific stain for RNA, used as a 2% solution containing 1% lanthanum acetate in 15% acetic acid.\n\u003cbr\u003e3,6-Bis[dimethylamino]acridine hydrochloride hydrate λ max 494 ± 4nm\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"04539-1 (1 g)","offer_id":46425686278358,"sku":"04539-1","price":94.0,"currency_code":"USD","in_stock":true},{"title":"04539-5 (5 g)","offer_id":46425686311126,"sku":"04539-5","price":390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/NEW_24603_1_1_1_b733a7f8-8202-479c-a764-7bbe145837d6.png?v=1738253238"},{"product_id":"oil-red-o-ci-26125-certified","title":"Oil Red O, C.I. 26125, certified","description":"\u003cp\u003eA post-electrophoresis stain for lipoproteins on cellulose acetate plates. (Solvent red 27; Sudan red 5B; Ceres red 5B)\u003c\/p\u003e","brand":"Polysciences","offers":[{"title":"06317-100 (100 g)","offer_id":46425688899798,"sku":"06317-100","price":117.32,"currency_code":"USD","in_stock":true},{"title":"06317-25 (25 g)","offer_id":46425688932566,"sku":"06317-25","price":56.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/5258\/2358\/files\/logo_only_1c4f69f8-1dda-4264-93e7-24e0f5571fcf-890993.jpg?v=1737983507"},{"product_id":"fuchsin-basic-certified-ci-42500","title":"Fuchsin, basic, certified, C.I. 42500","description":"\u003cp\u003eFor staining bacilli in tissue. 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It has the appearance of a dark brown to black powder with maximum absorption at 596-605 nm and melting point 120-124 °C. It stains blue-black. Sudan Black B is one of the dyes used for Sudan staining. 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