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CAS No 852-19-7 , 4-amino-N-(5-methyl-2-phenylpyrazol-3-yl)benzenesulfonamide

  • Name: 4-amino-N-(5-methyl-2-phenylpyrazol-3-yl)benzenesulfonamide
  • Synonyms: Sulfapyrazol; Sulfapyrazole; Sulphapyrazole;4-amino-N-(5-methyl-2-phenylpyrazol-3-yl)benzenesulfonamide; Sulfapirazol; Sulfapyrazolum; Solfapirazolo; 852-19-7;SULFAZAMET; Vesulong vet.;
  • CAS Registry Number:
  • Density: 1.36 g/cm3
  • Refractive index: 1.671
  • EINECS: 212-707-3
  • Molecular Weight: 328.38884
  • InchiKey: MTERSQYMYBGZTP-UHFFFAOYSA-N
  • InChI: InChI=1S/C16H16N4O2S/c1-12-11-16(20(18-12)14-5-3-2-4-6-14)19-23(21,
    22)15-9-7-13(17)8-10-15/h2-11,19H,17H2,1H3
  • Molecular Formula: C16H16N4O2S
  • Molecular Structure:CAS No:852-19-7 4-amino-N-(5-methyl-2-phenylpyrazol-3-yl)benzenesulfonamide

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852-19-7 Sulfapyrazole

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852-19-7 SULFAPYRAZOLE

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References of 4-amino-N-(5-methyl-2-phenylpyrazol-3-yl)benzenesulfonamide
Title: Sulfazamet
CAS Registry Number: 852-19-7
CAS Name: 4-Amino-N-(3-methyl-1-phenyl-1H-pyrazol-5-yl)benzenesulfonamide
Synonyms: N1-(3-methyl-1-phenylpyrazol-5-yl)sulfanilamide; 5-(p-aminobenzenesulfonamido)-3-methyl-1-phenylpyrazole; 3-(p-aminobenzenesulfonamido)-2-phenyl-5-methylpyrazole; 3-methyl-1-phenyl-5-(sulfanilamido)pyrazole; sulfamethylphenazole; sulfapyrazole
Trademarks: Vesulong (Novartis)
Molecular Formula: C16H16N4O2S
Molecular Weight: 328.39
Percent Composition: C 58.52%, H 4.91%, N 17.06%, O 9.74%, S 9.76%
Literature References: Prepn: Crippa, Guarneri, Gazz. Chim. Ital. 85, 199 (1955); GB 848627 (1960 to Ciba); Seydel, Krueger-Theimer, Arzneim.-Forsch. 14, 1294 (1964). Amino-imino tautomerism: eidem, ibid.
Properties: Crystals from alc, mp 195° (Seydel, Krueger-Theimer); mp 181-182° (GB 848627). pKa￠ 5.69.
Melting point: mp 195° (Seydel, Krueger-Theimer); mp 181-182° (GB 848627)
pKa: pKa￠ 5.69
Therap-Cat-Vet: Antibacterial.