57228-49-6 CARBAMIC ACID, (1-((4-(2-(DIMETHYLAMINO)ETHOXY)PHENYL)METHYL)-2-(ETHYLAMINO)-2-O CR 610 Carbamic acid, (1-((4-(2-(dimethylamino)ethoxy)phenyl)methyl)-2-(ethylamino)-2-oxoethyl)-, benzyl ester, oxalate, (S)- O-(2-Dimethylaminoethyl)-N-carbobenzoxy-L-tyrosyl-ethylamide oxalate