Eosin B

Description

CAS: 548-24-3 | C₂₀H₆Br₂N₂Na₂O₉

Eosin B sodium salt is a cell and tissue stain. Eosin B sodium salt is used as a counter stain for collagen, as a tissue stain for cell granules, nuclei, and microorganisms when coupled with Azure A (sc-203729), and as a stain for cell differentiation of the anterior pituitary.

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

Applications
Eosin B sodium salt is a cell and tissue stain. Eosin B sodium salt is used as a counter stain for collagen, as a tissue stain for cell granules, nuclei, and microorganisms when coupled with Azure A (sc-203729), and as a stain for cell differentiation of the anterior pituitary.

Solubility
Soluble in water (390 g/L at 20°C), and ethanol.

Notes
Store at room temperature. Keep away from strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 548-24-3
• Molecular Formula: C₂₀H₆Br₂N₂Na₂O₉
• MDL Number: MFCD00005041
• Synonym: C.I. 45400; 4,5-Dibromo-2,7-dinitrofluorescein disodium salt

• Quantity: 100 g
• Solubility Information: Soluble in water (390g/L at 20°C),and ethanol.
• Formula Weight: 624.08
• Chemical Name or Material: Eosin B

Safety and Handling

Hazard Category	H318
Precautionary Statement	P280-P305+P351+P338-P310
EINECSNumber	208-943-1
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only