Thermo Scientific Chemicals Eosin Y, pure, Indicator grade

Product Code	Brand	Quantity	Packaging
10368480	Thermo Scientific Chemicals 201930250	25 g	Glass bottle
10206310	Thermo Scientific Chemicals 201931000	100 g	Glass bottle
10349183	Thermo Scientific Chemicals 201932500	250 g	Glass bottle

Description

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Indicator

Chemical Identifiers

• CAS: 17372-87-1
• Molecular Weight (g/mol): 745.904
• InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L
• PubChem CID: 91886399
• 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+]

• Molecular Formula: C20H12Br4Na2O8
• MDL Number: MFCD00005040
• Synonym: 2';,4';,5';,7';-Tetrabromofluorescein, disodium salt, Eosin Yellowish, 2';, 4';, 5';
• IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate

Specifications

• Melting Point: >300.0°C
• Molecular Formula: C20H12Br4Na2O8
• Beilstein: 19, IV, 2917
• Synonym: 2';,4';,5';,7';-Tetrabromofluorescein, disodium salt, Eosin Yellowish, 2';, 4';, 5';
• InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L
• 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+]
• Molecular Weight (g/mol): 745.904
• Lambda Max: 511 to 519nm
• Loss on Drying: 10% max.
• Specific Extinction: 1100 min. (lambda max, 0.001M Na2CO3) on dried substance
• UV Spectrometry: Complies
• Color: Brown/Red
• Chemical Name or Material: Eosin Y

• CAS: 17372-87-1
• MDL Number: MFCD00005040
• Merck Index: 15, 3658
• Solubility Information: Solubility in water: freely soluble. Other solubilities: sparingly soluble in alcohol, insoluble in diethyl ether
• Infrared Spectrum: Authentic
• IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate
• PubChem CID: 91886399
• Formula Weight: 691.85
• Grade: Pure
• Specific Gravity: 1.018
• Density: 1.0180g/mL
• Physical Form: Fine Crystalline Powder

Safety and Handling

GHS H Statement:
Causes serious eye irritation.

GHS P Statement:
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.

Warning

Product Identifier

• Eosin Y

Signal Word

• Warning

Hazard Category

• Serious eye damage/eye irritation Category 2

Hazard Statement

• H319-Causes serious eye irritation.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

RUO – Research Use Only