Synonyms: 6-{(s)-(acetyloxy)[(5r)-4-methoxy-6-methyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinolin-5-yl]methyl}-2,3-dimethoxybenzoic acid;Papaveroxidine;AC1L4OR3;AC1Q5TJ6;AR-1H0698;6-[(S)-acetyloxy-[(5R)-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-((acetyloxy)(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*))-