Synonyms: Narcotic acid;AC1O573E;55836-07-2;6-[(S)-hydroxy-(4-methoxy-6-methyl-7,8-dihydro-5H-[1,3]dioxolo[4,5-g]isoquinolin-5-yl)methyl]-2,3-dimethoxybenzoic acid;Benzoic acid, 6-(hydroxy(5,6,7,8-tetrahydro-4-methoxy-6-methyl-1,3-dioxolo(4,5-g)isoquinolin-5-yl)methyl)-2,3-dimethoxy-, (S-(R*,S*))-