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CAS No 599-71-3 , N-hydroxybenzenesulfonamide Search by region : Germany

  • Name: N-hydroxybenzenesulfonamide
  • Synonyms: N-hydroxy-; Benzenesulfohydroxamic acid; 599-71-3;N-hydroxybenzenesulfonamide;N-Hydroxybenzenesulfonamide; Benzenesulfonamide; Benzsulfohydroxamic acid;
  • CAS Registry Number:
  • Melting Point: 122-125 ºC
  • Flash Point: 166.4 ºC
  • Boiling Point: 351.5 ºC at 760 mmHg
  • Density: 1.431 g/cm3
  • Refractive index: 1.588
  • Safety Statements: Slightly toxic by subcutaneous route. When heated to decomposition it emits toxic vapors of NOx and SOx.
  • Hazard Symbols: Xi: Irritant;
  • Flash Point: 166.4 ºC
  • EINECS: 209-973-8
  • Molecular Weight: 173.18968
  • InchiKey: BRMDATNYMUMZLN-UHFFFAOYSA-N
  • InChI: InChI=1S/C6H7NO3S/c8-7-11(9,10)6-4-2-1-3-5-6/h1-5,7-8H
  • Risk Statements: 36/37/38
  • Molecular Formula: C6H7NO3S
  • Molecular Structure:CAS No:599-71-3 N-hydroxybenzenesulfonamide

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References of N-hydroxybenzenesulfonamide
Title: Piloty's Acid
CAS Registry Number: 599-71-3
CAS Name: N-Hydroxybenzenesulfonamide
Synonyms: benzenesulfohydroxamic acid; N-(phenylsulfonyl)hydroxylamine
Molecular Formula: C6H7NO3S
Molecular Weight: 173.19
Percent Composition: C 41.61%, H 4.07%, N 8.09%, O 27.71%, S 18.51%
Literature References: Decomposes to produce nitroxyl (HNO). Prepn: O. Piloty, Ber. 29, 1559 (1896). Reaction with aldehydes: A. Hassner et al., J. Org. Chem. 35, 1962 (1970). Crystal structure: J. N. Scholz et al., Tetrahedron 45, 7695 (1989). Decompn study: F. T. Bonner, Y. Ko, Inorg. Chem. 31, 2514 (1992).
Properties: mp 126° (Piloty). Also reported as crystals from water, mp 109-110° (Scholz). pKa 9.29. Sol in alcohol, ether, ethyl acetate, acetone, warm water. Slightly sol in toluene, benzene, chloroform.
Melting point: mp 126° (Piloty); mp 109-110°
pKa: pKa 9.29
Use: HNO/NO- donor in biochemical model studies. In the Angeli-Rimini test for aldehydes.