CAS 16679-94-0 appears in our catalog under these names: Z-Tyr-oet, 98%, (S)-Ethyl 2-(((benzyloxy)carbonyl)amino)-3-(4-hydroxyphenyl)propanoate, 95+%, (S)-Ethyl 2-(((benzyloxy)carbonyl)amino)-3-(4-hydroxyphenyl)propanoate, 97%. Offered by: Combi-blocks, AmBeed, Fluorochem. Available pack sizes: 1g, 25g, 5g, 100g.