Synonyms: 3,3'-[benzene-1,3-diylbis(carbonyliminobenzene-4,1-diylcarbonylimino)]bis(1-methylpyridinium);SN 6113;AC1L4QNF;AC1Q5N00;AR-1E8513;AR-1E8514;SN-6113;A24924;(r)-1,2,3,4-tetrahydro-6,7-dimethoxy-1-veratrylisoquinoline;R-(+)-Tetrahydropapaverin;1-N,3-N-bis[4-[(1-methylpyridin-1-ium-3-yl)carbamoyl]phenyl]benzene-1,3-dicarboxamide;Pyridinium, 3,3'-(1,3-phenylenebis(carbonylimino-4,1-phenylenecarbonylimino))bis(1-methyl-