Synonyms: NSC 116821;NSC-1168211;1,1'-(4,4'-Biphenylylenedimethylene)bis(3-(2-chloroethyl)-3-nitrosourea);3,3'-(biphenyl-4,4'-diyldimethanediyl)bis[1-(2-chloroethyl)-1-nitrosourea];Urea, 1,1'-(4,4'-biphenylylenedimethylene)bis(3-(2-chloroethyl)-3-nitroso-;54340-56-6;NSC116821;AC1L3YBR;AC1Q3V32;AR-1E8225;NSC-116821;LS-158950;Urea, N,N''-((1,1'-biphenyl)-4,4'-diylbis(methylene))bis(N'-(2-chloroethyl)-N'-nitroso-;Urea,N''-[[1,1'-biphenyl]-4,4'-diylbis(methylene)]bis[N'-(2-chloroethyl)-N'-nitroso-;1-(2-chloroethyl)-3-[[4-[4-[[[2-chloroethyl(nitroso)carbamoyl]amino]methyl]phenyl]phenyl]methyl]-1-nitrosourea;Urea, N,N''-((1,1'-biphenyl)-4,4'-diylbis(methylene))bis(N'-(2-chloroethyl)-N'-nitroso- (9CI)