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Merck Index(13) 4793
Monograph Number: 4793
Title: 4-Hydrazinobenzenesulfonic Acid
CAS Registry Number: 98-71-5
Additional Names: p-Sulfophenylhydrazine; phenylhydrazine-p-sulfonic acid
Molecular Formula: C6H8N2O3S
Molecular Weight: 188.21.
Percent Composition: C 38.29%, H 4.28%, N 14.88%, O 25.50%, S 17.04%
Literature References: Prepn by sulfonation of phenylhydrazine: L. Claisen, P. Roosen, Ann. 278, 296 (1894); by the reduction of p-diazobenzenesulfonic acid: Th. Zincke, A. Kuchenbecker, Ann. 330, 1 (1903); L. V. Lazeeva et al., SU 1057493 (1983 to Tambov Pigment), C.A. 100, 138755q (1984). Used in resoln of 2-pyrazoline cmpds: M. Mukai et al., Can. J. Chem. 57, 360 (1979); in isoln of volatile ketones: W. Treibs, H. Röhnert, Ber. 84, 433 (1951); in analysis of trace amounts of selenium: T. Kawashima et al., Anal. Chim. Acta 49, 443 (1970); eidem, ibid. 89, 65 (1977).
Properties: Needles from water, mp 286? Slightly sol in water, alcohol.
Melting point: mp 286?
