Eosin Y, Reagent Grade, LabChem™

Specifications

Chemical Identifiers

• CAS: 17372-87-1
• Molecular Formula: C20H12Br4Na2O8
• Molecular Weight (g/mol): 745.904
• InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L
• Synonym: eosin yellowish, eosine, bromo acid, eosine yellowish, eosine g, bromoeosine, c.i. acid red 87, sodium eosine, sodium eosinate, eosine salt free
• PubChem CID: 91886399
• IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate
• SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]

• Physical Form: Powder
• CAS Max %: 100
• Packaging: Amber Glass
• Solubility: Soluble in water
• Color: Red
• Quantity: 25 g
• Linear Formula: C₂₀H₆Br₄O₅·2Na
• Formula Weight: 691.86
• Grade: Reagent
• Chemical Name or Material: Eosin Y

Safety and Handling

Hazard Category	Warning
Hazard Statement	GHS H Statement Causes serious eye irritation.
Precautionary Statement	GHS P Statement Wear protective gloves, eye protection. Wash exposed skin thoroughly after handling. If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention.
Recommended Storage	Room Temperature