1-(2-Chloroethyl)-1-nitroso-3-(2,6-xylyl)urea 13909-20-1 AI3-52786 BRN 2872571 NSC 91741 Urea, 1-(2-chloroethyl)-1-nitroso-3-(2,6-xylyl)- Urea, N-(2-chloroethyl)-N'-(2,6-dimethylphenyl)-N-nitroso- (9CI)