115155-67-4 133464-29-6 161422-48-6 23680-31-1 54784-64-4 62472-61-1 94347-12-3 Alanine, 3-(benzyloxy)-N-carboxy-, N-tert-butyl ester, L- EINECS 245-820-1 L-Serine, N-((1,1-dimethylethoxy)carbonyl)-O-(phenylmethyl)- N-((1,1-Dimethylethoxy)carbonyl)-O-(phenylmethyl)-L-serine NSC 334364 O-Benzyl-N-tert-butyloxycarbonylserine