CAS 18635-51-3 appears in our catalog under these names: 5-tert-butyl 1-methyl (2S)-2-{[(tert-butoxy)carbonyl]amino}pentanedioate, 95%, (S)-5-tert-Butyl 1-methyl 2-((tert-butoxycarbonyl)amino)pentanedioate, 97%, 5–(tert–Butyl)1–methyl(tert–Butoxycarbonyl)–l–glutamate. Offered by: Combi-blocks, AmBeed, GLPBio. Available pack sizes: 5g, 1g.