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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 178640674Generated: October 23, 2026

ACID BLUE 9

ERIOGLAUCINE (REDOX INDICATOR) 42090 · ERIOGLAUCINE A C.I. 42090 (BRILLIANT BLUE FCF) · Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-, inner salt, ammonium sodium salt (1:1:1)

https://huagongshe.com/en/chemical/178640674

ACID BLUE 9 molecular structure

Identifiers & Physical Properties

CAS No.94082-76-5
Molecular formulaC37H36N2O9S3.H3N.Na
Average molar mass788.91 g/mol
SMILESCCN(Cc1cccc(S(=O)(=O)O)c1)c1ccc(C(=C2C=CC(=[N+](CC)Cc3cccc(S(=O)(=O)[O-])c3)C=C2)c2ccccc2S(=O)(=O)O)cc1.N.[Na]
InChIKeyKHEWJEYPDKOWAM-UHFFFAOYSA-N