Synonyms: Anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-1,3,8,10(2H,9H)-tetrone, 2-methyl-;3,4,9,10-Perylenetetracarboxylic acid 3,4:9,10-diimide, N-methyl-;2-Methylanthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-1,3,8,10(2H,9H)-tetrone;2-methylisoquino[4',5',6':6,5,10]anthra[2,1,9-def]isoquinoline-1,3,8,10(2H,9H)-tetrone