Synonyms: L-Serine,N-[(phenylmethoxy)carbonyl]-, methyl ester, 4-methylbenzenesulfonate (ester)(9CI); Serine, N-carboxy-, N-benzyl methyl ester, p-toluenesulfonate (7CI);Serine, N-carboxy-, N-benzyl methyl ester, p-toluenesulfonate (ester), L-(8CI); Methyl(S)-2-[(benzyloxycarbonyl)amino]-3-(p-toluenesulfonyloxy)propanoate