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E8761

Eosin B

Name: Eosin B
Brand: SIGMA

Dye content ≥85 %, certified by the BSC

Synonym(s):

4′,5′-Dibromo-2′,7′-dinitrofluorescein disodium salt, Acid Red 91, Eosin Scarlet, Eosin bluish, Saffrosine

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About This Item

Linear Formula:

C₂₀H₆N₂O₉Br₂Na₂

CAS Number:

548-24-3

Molecular Weight:

624.06

UNSPSC Code:

12171500

EC Number:

208-943-1

Beilstein/REAXYS Number:

4121964

MDL number:

MFCD00005041

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Properties

agency

certified by the BSC

composition

Dye content, ≥85%

SMILES string

[Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(C(=O)C(Br)=C3Oc4c(Br)c([O-])c(cc24)[N+]([O-])=O)[N+]([O-])=O

InChI

1S/C20H8Br2N2O9.2Na/c21-14-16(25)11(23(29)30)5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(24(31)32)17(26)15(22)19(10)33-18(9)14;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2

InChI key

GYYTYUGGVBYJHE-UHFFFAOYSA-L

Description

Application

Certified for use as a counterstain for alum-hematoxylin and with Lillie′s modified Nocht technique.

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Analysis and testing of biological stains--the Biological Stain Commission Procedures.

D P Penney et al.

Biotechnic & histochemistry : official publication of the Biological Stain Commission, 77(5-6), 237-275 (2003-02-05)