1,2-bis(3,6-bis(heptyloxy)-2-nitrophenyl)diazene

6-methyl-6H-indolo[2,3-b]quinoxaline N-oxide

5-methyl-11H-indolo[3,2-c]quinolin-6-one

3-(4-chlorophenyl)-3-hydroxy-1-methylindol-2-one

1-methyl-3-phenacyl-3H-indol-2-one