2,9-Bis(p-tolyl)anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-1,3,8,10(2H,9H)-tetrone 32283-97-9 Anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-1,3,8,10(2H,9H)-tetrone, 2,9-bis(4-methylphenyl)- EINECS 250-980-0 N,N'-Di-p-tolyl-3,4,9,10-perylenetetracarboxylic diimide