Title: Hydantoin
CAS Registry Number: 461-72-3
CAS Name: 2,4-Imidazolidinedione
Additional Names: 2,4-(3H,5H)-imidazoledione; glycolylurea
Molecular Formula: C3H4N2O2
Molecular Weight: 100.08
Percent Composition: C 36.00%, H 4.03%, N 27.99%, O 31.97%
Literature References: Prepn: Baeyer, Ann. 130, 129 (1864). Manuf: Gresham, Schweitzer, US 2402134 (1946 to du Pont); White, Wysong, US 2663713 (1953 to Dow). Review: J. H. Bateman in Kirk-Othmer Encyclopedia of Chemical Technology vol. 12 (Wiley-Interscience, New York, 3rd ed., 1980) pp 692-711.
Properties: Needles from methanol, mp 220°. Slightly sol in water or ether; sol in alcohol, in solns of fixed alkali hydroxides.
Melting point: mp 220°

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