Benzenesulfonic acid, 4-chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methyl-, ammonium salt (1:2)

CAS Registry Number®

154946-66-4

CAS Name

Benzenesulfonic acid, 4-chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methyl-, ammonium salt (1:2)

Molecular Formula

C17H15ClN4O7S2.2H3N

Cite this Page

Benzenesulfonic acid, 4-chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methyl-, ammonium salt (1:2).   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=154946-66-4 (retrieved 2025-01-09) (CAS RN: 154946-66-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C17H15ClN4O7S2.2H3N/c1-9-6-15(31(27,28)29)14(8-13(9)18)19-20-16-10(2)21-22(17(16)23)11-4-3-5-12(7-11)30(24,25)26;;/h3-8,16H,1-2H3,(H,24,25,26)(H,27,28,29);2*1H3

InChIKey

InChIKey=KOJNKGSMYHNILJ-UHFFFAOYSA-N

SMILES

O=C1N(N=C(C)C1N=NC2=C(S(=O)(=O)O)C=C(C)C(Cl)=C2)C3=CC(S(=O)(=O)O)=CC=C3.N

Canonical SMILES

O=C1N(N=C(C)C1N=NC2=CC(Cl)=C(C=C2S(=O)(=O)O)C)C3=CC=CC(=C3)S(=O)(=O)O.N

Other Names for this Substance

  • Benzenesulfonic acid, 4-chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methyl-, ammonium salt (1:2)
  • Benzenesulfonic acid, 4-chloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]-5-methyl-, diammonium salt
  • Cromophtal Yellow HRP
  • C.I. Pigment Yellow 191:1
  • Pigment Yellow 191:1

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Deleted or Replaced CAS Registry Numbers

756853-48-2, 221657-92-7

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