1-(3-(2-Chloroethyl)-3-nitrosoureido)cyclopentanecarboxylic acid ethyl ester 13909-05-2 AI3-52789 BRN 2882822 Cyclopentanecarboxylic acid, 1-((((2-chloroethyl)nitrosoamino)carbonyl)amino)-, ethyl ester Cyclopentanecarboxylic acid, 1-((((2-chloroethyl)nitrosoamino)carbonyl)amino)-, ethyl ester (9CI) Cyclopentanecarboxylic acid, 1-(3-(2-chloroethyl)-3-nitrosoureido)-, ethyl ester NSC 99431