3-Hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-1-naphthalenesulfonic acid

CAS Registry Number®

25747-05-1

CAS Name

3-Hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-1-naphthalenesulfonic acid

Molecular Formula

C20H14N2O5S

Molecular Mass

394.40

Cite this Page

3-Hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-1-naphthalenesulfonic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=25747-05-1 (retrieved 2025-05-05) (CAS RN: 25747-05-1).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C20H14N2O5S/c23-17-11-18(28(25,26)27)14-7-3-4-8-15(14)19(17)22-21-16-10-9-12-5-1-2-6-13(12)20(16)24/h1-11,23-24H,(H,25,26,27)

InChIKey

InChIKey=BRDGZOLJYALNOY-UHFFFAOYSA-N

SMILES

N(=NC1=C(O)C2=C(C=C1)C=CC=C2)C=3C4=C(C(S(=O)(=O)O)=CC3O)C=CC=C4

Canonical SMILES

O=S(=O)(O)C1=CC(O)=C(N=NC=2C=CC=3C=CC=CC3C2O)C=4C=CC=CC41

Other Names for this Substance

  • 1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-
  • 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-
  • 2-Naphthol-4-sulfonic acid, 1-(1-hydroxy-2-naphthylazo)-
  • 3-Hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-1-naphthalenesulfonic acid
  • Solochrome Black 6B free acid

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