Eosin Y
Eosin Y (CAS 17372-87-1), molecular formula C20H6Br4Na2O5, is a high-purity chemical supplied by Tech Serve Solutions for biochemicals & reagents applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- 2′,4′,5′,7′-Tetrabromofluorescein disodium salt,Acid Red 87,Bromo acid J. TS, XL, or XX,Bromofluorescein,Bronze Bromo ES,D&C;Red No. 22,Eosin yellowish
| Molecular weight | 691.85 |
|---|---|
| Empirical formula | C20H6Br4Na2O5 |
| Grade | certified by the Biological Stain Commission |
| Density | 1.015 g/mL at 25 °C |
| Solubility | H2O: soluble0.1 g/mL, dark red |
| Concentration | 5 wt. % in H2O |
| Suitability | in accordance for electrophoresis test |
| Composition | Dye content, 90% |
Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 45380 |
|---|---|
| Absorption | λmax 518 nm |
| Fluorescence | λex 532 nmλem 540 nm in H2O |
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Eosin Y?
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Eosin Y (CAS 17372-87-1), molecular formula C20H6Br4Na2O5, is a high-purity chemical supplied by Tech Serve Solutions for biochemicals & reagents applications, to USP, BP and EP standards.
What grades of Eosin Y does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Eosin Y in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Eosin Y?
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Eosin Y has CAS number 17372-87-1 and molecular formula C20H6Br4Na2O5. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Eosin Y?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Eosin Y ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Eosin Y be stored?
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Store Eosin Y in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Eosin Y used for?
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Eosin Y is used in biochemicals & reagents applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Eosin Y?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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