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Eosin B, high purity biological stain

Eosin B, high purity biological stain

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Catalog Number

ACM548243-2

Product Name

Structure

CAS

548-24-3

Product Overview
Usage

Synonyms

EOSIN RED; SAFFROSINE; Eosine BN; Eosine BA; CAESAR RED; SAFROSIN; Nophalin G; EOSIN B;

IUPAC Name

disodium 4,5-dibromo-2,7-dinitro-3-oxospiro[2-benzofuran-1,9-xanthene]-3,6-diolate

Molecular Weight

624

Molecular Formula

C20H6Br2N2Na2O9

InChI Key

QGAYMQGSQUXCQO-UHFFFAOYSA-L

Boiling Point

694.1ºC at 760 mmHg

Melting Point

275ºC (dec.)(lit.)

Flash Point

373.6ºC

Purity

Disodium Salt

Appearance

red to purple crystalline powder

Storage

Store at +5°C to +30°C.

Exact Mass

621.82400

H-Bond Acceptor

H-Bond Donor

Stability

Stable. Incompatible with strong oxidizing agents.

Application

Eosin B, a high purity biological stain, serves multiple purposes in both scientific and industrial applications. This odorless green to reddish-brown solid is primarily used in dyeing materials such as wool, cotton, and paper. In the field of histology, it plays a crucial role as a stain for epithelia, muscular fibers, and nuclei. As Eosin B sodium salt, it functions as a precise cell and tissue stain, acting as a counterstain for collagen and effectively staining cell granules, nuclei, and microorganisms, especially when used in conjunction with Azure A. Furthermore, it is employed in the differentiation of cells in the anterior pituitary, making it an essential tool for detailed histological studies.

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CAS
Size
Purity
Price
Quantity
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548-24-3
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Disodium Salt
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