12-07378. Phenicarbazide [Archived]

Nomenclature

CAS number: 103-03-7
2-Phenylhydrazinecarboxamide; 1-phenylsemicarbazide; 1-carbamyl-2-phenylhydrazine; Cryogenine; Kryogenin.
C7H9N3O; mol wt 151.17.
C 55.62%, H 6.00%, N 27.80%, O 10.58%.
C6H5NHNHCONH2.

Description and references

Prepd by mixing 50 g phenylhydrazine with 37 g 90% acetic acid and 250 g water, then slowly adding a soln of 45 g potassium cyanate in 150 g water: Wildman, Ber. 26, 2613 (1893).

Properties

Leaflets from water, mp 172°. Very sol in hot water, alcohol, methanol, and acetone; difficultly sol in cold water, ether, benzene, ligroin.

Therapeutic Category

Antipyretic.

Keywords

Antipyretic

Status

This monograph has been retired and is no longer subject to revision or update.