Synonyms: 3-Isoquinolinecarboxylicacid, 1,2,3,4-tetrahydro-, methyl ester, hydrochloride, (3S)- (9CI);3-Isoquinolinecarboxylic acid, 1,2,3,4-tetrahydro-, methyl ester,hydrochloride, (S)-; (3S)-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acidmethyl ester hydrochloride; (3S)-Methyl 1,2,3,4-tetrahydro-3-isoquinolinecarboxylatehydrochloride; Methyl (S)-1,2,3,4-tetrahydroisoquinoline-3-carboxylatehydrochloride