CGS 12066B [ CGS 12066,7-trifluoromethyl-4-(4-methyl-1-piperazinyl)pyrrolol(1,2-a)quinoxaline,CGS 12066A,CGS 12066B ethanedioate (1:2),CGS-12066A,CGS-12066B ] RN given for ((Z)-2-butenedioate (1:2))-salt (CGS 12066B); CGS 12066A is the (ethanedioate (1:2))-salt; structure given in first source