Title: 4,4¢-Dinitrocarbanilide
CAS Registry Number: 587-90-6
CAS Name: N,N¢-Bis(4-nitrophenyl)urea
Additional Names: DNC; 4,4¢-dinitrodiphenylurea
Molecular Formula: C13H10N4O5
Molecular Weight: 302.24
Percent Composition: C 51.66%, H 3.33%, N 18.54%, O 26.47%
Literature References: Prepd by heating 4-nitroaniline and diphenyl carbonate for 3 hrs at 200°: Vittenet, Bull. Soc. Chim. Fr. [3] 21, 149 (1899); by nitration of diphenylurea with 68.28% HNO3 in concd H2SO4 at 0°: Kogan, Kutepov, J. Gen. Chem. USSR 21, 1297 (1951), C.A. 46, 2003d (1952); by the action of dil HNO3 on diphenylurea at up to 100°: eidem, SU 78379 (1949), C.A. 48, 7056i (1954).
Properties: Yellow needles from alc, mp 312° (dec). Sublimes above 310°. Moderately sol in boiling nitrobenzene; sparingly sol in boiling alc, somewhat more sol in a mixture of glacial acetic acid and nitric acid. Practically insol in acetone, chloroform, benzene, dioxane, acetic acid, ether and linseed oil. Solubilities in g/100 ml solvent at 25°: water 2 ´ 10-6; ethanol 0.007; ethyl acetate 0.015; petr ether 0.0; xylene <0.01; methyl Cellosolve 0.1; dimethyl acetamide 0.14; dimethyl sulfoxide 0.47.
Melting point: mp 312° (dec) |