Eosin Y Disodium Salt, Water Soluble (Acid Red 87)

Acid Red 87 Chemical Structure

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What is Eosin Y?

Eosin Y, also referred to as Acid Red 87, is a xanthene dye and belongs to the family of triarylmethane dyes. It is derived from Fluorescein through the process of bromination.

Macsen Laboratories is the leading manufacturer and supplier of Eosin Y with ISO certification.
PRODUCT SPECIFICATIONS
PRODUCT NAME Eosin Y
SYNONYMS Acid Red 87; Disodium Eosine; Eosin ws; C.I 45380; Eosin yellowish; Bronze Bromo; Certiqual Eosine
CAS No 17372-87-1
Color Index No 45380
Molecular Formula C20H8Br4NaO5+
Molecular Weight 670.9 g/mol
PubChem CID 24180873

SPECIFICATIONS

SR. No Criteria Limit/Specification
1 APPEARANCE Red Crystalline Powder, Hygroscopic, when examined in UV Light at 365nm it Exhibits greenish yellow Fluorescence
2 SOLUBILITY Must Pass Test
3 LOSS ON DRYING NMT 13.0%
4 SULPHATED ASH TEST NMT 25.0%
5 ASSAY (WITH REFERENCE TO SUBS. DRIED AT100- 105˚C. MINIMUM 85.0%

Uses

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