4-(4-Hydroxy-1-naphthylazo)benzenesulfonic acid

CAS Registry Number®

574-69-6
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CAS Name

4-(4-Hydroxy-1-naphthylazo)benzenesulfonic acid

Molecular Formula

C16H12N2O4S

Molecular Mass

328.34

Cite this Page

4-(4-Hydroxy-1-naphthylazo)benzenesulfonic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=574-69-6 (retrieved 2024-09-19) (CAS RN: 574-69-6).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C16H12N2O4S/c19-16-10-9-15(13-3-1-2-4-14(13)16)18-17-11-5-7-12(8-6-11)23(20,21)22/h1-10,19H,(H,20,21,22)

InChIKey

InChIKey=PURJGKXXWJKIQR-UHFFFAOYSA-N

SMILES

N(=NC1=CC=C(S(=O)(=O)O)C=C1)C=2C3=C(C(O)=CC2)C=CC=C3

Canonical SMILES

O=S(=O)(O)C1=CC=C(N=NC2=CC=C(O)C=3C=CC=CC23)C=C1

Other Names for this Substance

  • Benzenesulfonic acid, 4-[2-(4-hydroxy-1-naphthalenyl)diazenyl]-
  • Benzenesulfonic acid, 4-[(4-hydroxy-1-naphthalenyl)azo]-
  • Benzenesulfonic acid, p-[(4-hydroxy-1-naphthyl)azo]-
  • C.I. Acid Orange 20, free acid
  • 4-[2-(4-Hydroxy-1-naphthalenyl)diazenyl]benzenesulfonic acid

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