1-(2-Chloroethyl)-3-cyclopentyl-1-nitrosourea 13909-03-0 AI3-52895 BRN 2848612 N-(2-Chloroethyl)-N'-cyclopentyl-N-nitrosourea NSC 90330 Urea, 1-(2-chloroethyl)-3-cyclopentyl-1-nitroso- Urea, N-(2-chloroethyl)-N'-cyclopentyl-N-nitroso- (9CI)