E8761

Eosin B

Dye content ≥85 %, certified by the Biological Stain Commission

• Synonym(s): 4′,5′-Dibromo-2′,7′-dinitrofluorescein disodium salt, Acid Red 91, Eosin Scarlet, Eosin bluish, Saffrosine
• Linear Formula: C₂₀H₆N₂O₉Br₂Na₂
• CAS Number: 548-24-3
• Molecular Weight: 624.06
• Colour Index Number: 45400
• Beilstein: 4121964
• EC Number: 208-943-1
• MDL number: MFCD00005041
• UNSPSC Code: 12171500

Properties

• grade: certified by the Biological Stain Commission
• 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

Suitability

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