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Thermo Scientific Chemicals Eosin Yellowish

Catalog No. AAB2453530
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Eosin Yellowish noted to reduce the affinity of Mg2+-ATPase for ATP and increase the enzyme affinity for Mg2+ at concentrations of 10-50 M. At higher concentrations near 100 ?M the affinity for Mg2+-ATPase for the ion-activator has been shown to be reduced. This compound has also been reported to be a photosensitizer that works as a molecular photoelectrode via catalyzation of the visible-light-driven electron-transfer reaction. Eosin Y is also used to stain structures such as muscle, cytoplasm, and collagen. This agent also enhances fluorescent quenching abilities by forming a complex with polyvinulpyrrolidone.

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 Yellowish noted to reduce the affinity of Mg2+-ATPase for ATP and increase the enzyme affinity for Mg2+ at concentrations of 10-50 μM. At higher concentrations near 100 μM the affinity for Mg2+-ATPase for the ion-activator has been shown to be reduced. This compound has also been reported to be a photosensitizer that works as a molecular photoelectrode via catalyzation of the visible-light-driven electron-transfer reaction. Eosin Y is also used to stain structures such as muscle, cytoplasm, and collagen. This agent also enhances fluorescent quenching abilities by forming a complex with polyvinulpyrrolidone.

Solubility
Soluble in water, fairly soluble in alcohol, insoluble in ether

Notes
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Incompatible with oxidizing agents.

Chemical Identifiers

CAS

17372-87-1

Molecular Formula

C20H12Br4Na2O8

Molecular Weight (g/mol)

745.904

MDL Number

MFCD00133309

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+]

Specifications

Odor

Odorless

Quantity

250 g

Beilstein

3586809

Merck Index

14,3603

Solubility Information

Soluble in water, fairly soluble in alcohol, insoluble in ether

Formula Weight

691.86

Chemical Name or Material

Eosin Yellowish

Hazard Category

H319

Hazard Statement

GHS H Statement
H319
Causes serious eye irritation.

Precautionary Statement

P264b-P280i-P305+P351+P338

EINECSNumber

241-409-6

RTECSNumber

LM5850000

TSCA

Yes

Recommended Storage

Ambient temperatures

RUO – Research Use Only

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