CHEBI:39077 - eosin b

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ChEBI Name eosin b
ChEBI ID CHEBI:39077
Definition An organic sodium salt which is the disodium salt of eosin b diphenol.
Stars This entity has been manually annotated by the ChEBI Team.
Supplier Information
Download Molfile XML SDF
Formula C10H8Br2N2O9.2Na
Net Charge 0
Average Mass 624.05726
Monoisotopic Mass 621.82354
InChI InChI=1S/C20H8Br2N2O9.2Na/c21-13-15(25)11(23(28)29)5-9-17(13)32-18-10(6-12(24(30)31)16(26)14(18)22)20(9)8-4-2-1-3-7(8)19(27)33-20;;/h1-6,25-26H;;/q;2*+1/p-2
InChIKey QGAYMQGSQUXCQO-UHFFFAOYSA-L
SMILES [Na+].[Na+].[O-]c1c(Br)c2Oc3c(Br)c([O-])c(cc3C3(OC(=O)c4ccccc34)c2cc1[N+]([O-])=O)[N+]([O-])=O
Roles Classification
Application(s): histological dye
A dye used in microscopic or electron microscopic examination of cells and tissues to give contrast and to highlight particular features of interest, such as nuclei and cytoplasm.
fluorescent dye

View more via ChEBI Ontology
ChEBI Ontology
Outgoing eosin b (CHEBI:39077) has part eosin b(2−) (CHEBI:68617)
eosin b (CHEBI:39077) has role fluorescent dye (CHEBI:51121)
eosin b (CHEBI:39077) has role histological dye (CHEBI:77178)
eosin b (CHEBI:39077) is a organic sodium salt (CHEBI:38700)
IUPAC Name
disodium 4',5'-dibromo-2',7'-dinitro-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate
Synonyms Sources
2-(4,5-Dibromo-3,6-dihydroxy-2,7-dinitroxanthen-9-yl)-benzoic acid, disodium salt ChemIDplus
acid red 91 ChEBI
C.I. 45400 ChEBI
C.I. Acid Red 91 ChemIDplus
Dibromodinitrofluorescein sodium ChemIDplus
eosin bluish ChEBI
imperial red ChEBI
Saffrosine ChemIDplus
Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro-, disodium salt ChemIDplus
Registry Number Type Source
548-24-3 CAS Registry Number ChemIDplus
Last Modified
29 July 2015