Tetranitro-carbanilide

N,N B is(dinitrophenyl) urea T etranitro-sym -diphenyl-urea or Tetranitro-carbanilide, (O2N)2C6H3.NH.CO.NH.C6H3(N02)2 mw 392.24, N 24.43%. Two isomers are described in the literature N,N -B is(2, 4-dinitropbenyl) -urea, yel ndls(from coned HN03), mp begins to dec ca 150°, melts ca 218 with decomposi-tion(Ref 1) and N,N -Bis(3,5-dinitropbenyl) urea, yel ndls(frorn alc+w), mp 265° (Ref 2). Other props and methods of prepn are given in the Refs. Expl props of these tetranitro... 

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