4-[2-(4-Hydroxyphenyl)diazenyl]benzenesulfonic acid

CAS Registry Number®

2918-83-4
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CAS Name

4-[2-(4-Hydroxyphenyl)diazenyl]benzenesulfonic acid

Molecular Formula

C12H10N2O4S

Molecular Mass

278.28

Cite this Page

4-[2-(4-Hydroxyphenyl)diazenyl]benzenesulfonic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=2918-83-4 (retrieved 2024-06-27) (CAS RN: 2918-83-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    270-275 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C12H10N2O4S/c15-11-5-1-9(2-6-11)13-14-10-3-7-12(8-4-10)19(16,17)18/h1-8,15H,(H,16,17,18)

InChIKey

InChIKey=CNYMBHPFLJWLJW-UHFFFAOYSA-N

SMILES

N(=NC1=CC=C(O)C=C1)C2=CC=C(S(=O)(=O)O)C=C2

Canonical SMILES

O=S(=O)(O)C1=CC=C(N=NC2=CC=C(O)C=C2)C=C1

Other Names for this Substance

  • Benzenesulfonic acid, 4-[2-(4-hydroxyphenyl)diazenyl]-
  • Benzenesulfonic acid, 4-[(4-hydroxyphenyl)azo]-
  • Benzenesulfonic acid, p-[(p-hydroxyphenyl)azo]-
  • 4-[2-(4-Hydroxyphenyl)diazenyl]benzenesulfonic acid
  • 4-[(4-Hydroxyphenyl)azo]benzenesulfonic acid

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Deleted or Replaced CAS Registry Numbers

78659-99-1, 209161-27-3, 853734-45-9