Synonyms: 4,9-Dibromo-2,7-dihexylbenzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetrone;N,N'-Dihexyl-2,6-dibromonaphthalene-1,4,5,8-tetracarboxydianhydride;9-DibroMo-2,7-dihexylbenzo[lMn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetrone;4,9-DibroMo-2,7-dihexylbenzo[lMn][3,8]phenanthroline-1,3,6,8-tetraone