1-Pyrrolidinecarboxylic acid, 2-(chloroacetyl)-5-oxo-, phenylmethyl ester, (S)- 77319-02-9 N(alpha)-Carbobenzoxy-pglu-chloromethyl ketone N(alpha)-Carbobenzoxypyroglutamic acid chloromethyl ketone Nalpha-Carbobenzoxypyroglutamic acid chloromethyl ketone Zpgcmk