Synonyms: Octaverine hydrochloride;6,7-Dimethoxy-1-(3,4,5-triethoxyphenyl)isoquinoline hydrochloride;Octaverine HCl;Isoquinoline, 6,7-dimethoxy-1-(3,4,5-triethoxyphenyl)-, hydrochloride;6,7-dimethoxy-1-(3,4,5-triethoxyphenyl)isoquinoline hydrochloride (1:1)