N,N'Diheptyl-3,4,9,10-perylene-bis-carboximide;2,9-Di(n-heptyl)-anthra2,1,9-def.6,5,10-d'e'f'diisoquinoline-1,3,8,10-tetrone;N,N'-Bis(n-heptyl)-3,4,9,10-perylenedicarboximide;N,N'-DI(N-HEPTYL)-PERYLENE-TETRACARBONIC ACID, DIAMIDE;
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