CAS 35909-93-4 appears in our catalog under these names: N-Alpha-carbobenzoxy-l-aspartic acid alpha,beta-dimethyl ester, 95%, (S)-Dimethyl 2-(((benzyloxy)carbonyl)amino)succinate, 95%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 5g, 1g, 10g.