7319. N-Phenylurea

Nomenclature

CAS number: 64-10-8
Phenylcarbamide.
C7H8N2O; mol wt 136.15.
C 61.75%, H 5.92%, N 20.58%, O 11.75%.

Description and references

Obtained with carbanilide as byproduct by refluxing aniline hydrochloride and urea in water: Davis, Blanchard, Org. Synth. 3, 95 (1923).

Chemical structure

Properties

Monoclinic prisms from water or alcohol. d 1.302; mp 147° (dec); bp 238°. On slow cooling separates in needles several centimeters in length. Soluble in hot water, hot alcohol, ether, ethyl acetate, glacial acetic acid.