4-Amino-2-methylbenzenesulfonic acid

CAS Registry Number®

133-78-8
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CAS Name

4-Amino-2-methylbenzenesulfonic acid

Molecular Formula

C7H9NO3S

Molecular Mass

187.22

Cite this Page

4-Amino-2-methylbenzenesulfonic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=133-78-8 (retrieved 2024-06-26) (CAS RN: 133-78-8).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C7H9NO3S/c1-5-4-6(8)2-3-7(5)12(9,10)11/h2-4H,8H2,1H3,(H,9,10,11)

InChIKey

InChIKey=ZDIRCGKEOWZBIM-UHFFFAOYSA-N

SMILES

S(=O)(=O)(O)C1=C(C)C=C(N)C=C1

Canonical SMILES

O=S(=O)(O)C1=CC=C(N)C=C1C

Other Names for this Substance

  • Benzenesulfonic acid, 4-amino-2-methyl-
  • o-Toluenesulfonic acid, 4-amino-
  • 4-Amino-2-methylbenzenesulfonic acid
  • 4-Amino-o-toluenesulfonic acid
  • 2-Methylsulfanilic acid

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Deleted or Replaced CAS Registry Numbers

859030-71-0

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