Ethyl Eosin

Name: Ethyl Eosin

CAS Registry Number: 6359-05-3

CA Index Name: Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, ethyl ester, potassium salt

Other Names: Ethyl eosin; Fluorescein, 2',4',5',7'-tetra-bromo-, ethyl ester, potassium derivative; Fluorescein, 2',4',5',7'-tetrabromo-, ethyl ester, potassium salt; C.I. 45386; C.I. Solvent Red 45; Ethyl eosine Y; NSC 8670; Spirit Eosine; Spirit Primrose DH

Merck Index Number: Not listed

Chemical / Dye Class: Xanthene

Molecular Formula: C₂₂H₁₁Br₄KO₅

Molecular Weight: 714.03

Physical Form: Red-brown crystals or powder

Solubility: Soluble in hot water; slightly soluble in ethanol

Melting Point: > 200 °C

Absorption (λ_max): 532 nm

Synthesis: Synthetic method

Staining Applications: Cells; gelatin; lysosomes; mammalian tissues; mitochondria; neurons; nucleic acids; proteins; urine

Biological Applications: Drug delivery and tissue engineering; photodynamic therapy; dental materials; treating cancer, diabetes; wound dressing materials

Industrial Applications: Liquid crystal display device; lithographic printing plates; inks; recording materials; photographic materials; polymer waveguides

Safety / Toxicity: No data available

Certification / Approval: Certified by Biological Stain Commission (BSC)

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