104958-16-9 11,12-Bis(acetyloxy)-5,6-dimethyl-2,3,8,9-tetramethoxybenzo(c)phenanthridinium perchlorate 11,12-Diacetoxy-5,6-dimethyl-2,3,8,9-tetramethoxybenzo(c)phenanthridinium perchlorate BENZO(c)PHENANTHRIDINIUM, 11,12-BIS(ACETYLOXY)-5,6-DIMETHYL-2,3,8,9-TETRAMETHOXY Benzo(c)phenanthridinium, 11,12-bis(acetyloxy)-5,6-dimethyl-2,3,8,9-tetramethoxy-, perchlorate