Synonyms: L-Proline,methyl ester, hydrochloride (9CI);Proline, methyl ester, hydrochloride, L-(6CI,7CI,8CI);(2S)-(Methoxycarbonyl)pyrrolidine hydrochloride;(S)-Methylpyrrolidine-2-carboxylate hydrochloride;(S)-Pyrrolidine-2-carboxylic acid methyl ester hydrochloride;L-Proline methyl ester monohydrochloride;Methyl proline hydrochloride;H-Pro-OMe.HCl;H-Pro-OMe·HCl;L-Proline, methylester, hydrochloride (1:1);