Title: 4-Phenylsemicarbazide
CAS Registry Number: 537-47-3
CAS Name: N-Phenylhydrazinecarboxamide
Additional Names: anilinoformylhydrazine
Molecular Formula: C7H9N3O
Molecular Weight: 151.17
Percent Composition: C 55.62%, H 6.00%, N 27.80%, O 10.58%
Line Formula: C6H5NHCONHNH2
Literature References: Prepd by the action of hydrazine hydrate on phenylurea: Curtius, J. Prakt. Chem. [2] 58, 216 (1898); Wheeler, Org. Synth. coll. vol. I (2nd ed., 1941) p 450.
Properties: Orthorhombic plates from water, mp 122°. Insol in ether, difficultly sol in hot water. Freely sol in alcohol, chloroform, dil acids and alkalies.
Melting point: mp 122°
Derivative Type: Hydrochloride
Molecular Formula: C7H9N3O.HCl
Molecular Weight: 187.63
Percent Composition: C 44.81%, H 5.37%, N 22.40%, O 8.53%, Cl 18.90%
Properties: Prisms, mp 215°; freely sol in water and alcohol.
Melting point: mp 215°

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