4-[4,5-Dihydro-3-methyl-5-oxo-4-(2-phenyldiazenyl)-1H-pyrazol-1-yl]benzenesulfonic acid

CAS Registry Number®

25739-63-3

CAS Name

4-[4,5-Dihydro-3-methyl-5-oxo-4-(2-phenyldiazenyl)-1H-pyrazol-1-yl]benzenesulfonic acid

Molecular Formula

C16H14N4O4S

Molecular Mass

358.37

Cite this Page

4-[4,5-Dihydro-3-methyl-5-oxo-4-(2-phenyldiazenyl)-1H-pyrazol-1-yl]benzenesulfonic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=25739-63-3 (retrieved 2024-11-23) (CAS RN: 25739-63-3).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C16H14N4O4S/c1-11-15(18-17-12-5-3-2-4-6-12)16(21)20(19-11)13-7-9-14(10-8-13)25(22,23)24/h2-10,15H,1H3,(H,22,23,24)

InChIKey

InChIKey=OILFJMYLWASPJD-UHFFFAOYSA-N

SMILES

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

Canonical SMILES

O=C1N(N=C(C)C1N=NC=2C=CC=CC2)C3=CC=C(C=C3)S(=O)(=O)O

Other Names for this Substance

  • Benzenesulfonic acid, 4-[4,5-dihydro-3-methyl-5-oxo-4-(2-phenyldiazenyl)-1H-pyrazol-1-yl]-
  • C.I. Acid Yellow 11
  • Benzenesulfonic acid, 4-[4,5-dihydro-3-methyl-5-oxo-4-(phenylazo)-1H-pyrazol-1-yl]-
  • C.I. Acid Yellow 11, free acid
  • Benzenesulfonic acid, p-(3-methyl-5-oxo-4-phenylazo-2-pyrazolin-1-yl)-

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Deleted or Replaced CAS Registry Numbers

742693-90-9, 189638-92-4, 126347-10-2, 1007629-55-1, 1089765-17-2, 1173147-33-5, 1174626-98-2, 1185515-86-9

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