Synonyms: Nicotinicacid, 4-[(6,7-dimethoxy-1-isoquinolyl)methyl]-o-phenylene ester (7CI,8CI);Papaveroline, dimethyl-, dinicotinate (6CI); Pyrocatechol,4-[(6,7-dimethoxy-1-isoquinolyl)methyl]-, dinicotinate (ester);4-[(6,7-Dimethoxy-1-isoquinolyl)methyl]pyrocatechol dinicotinate;Dimethylpapaverolene dinicotinate; Niceverine; RC 167