Phenicarbazide is a semicarbazide and an antipyretic substance.

[1] Phenicarbazide can be obtained by mixing phenylhydrazine with acetic acid in aqueous solution with the addition of potassium cyanide.

[2] Phenicarbazide is a flammable, hard to ignite, crystalline, beige solid that is practically insoluble in water.

[3] Phenicarbazide is an intermediate in the syntheses of a series of chemical compounds by cyclocondensation reactions.

[4] It was investigated as an analgesic and antipyretic in the 1970s and was used in combination preparations.