ethyl 6,11-dioxonaphtho[2,3-b]indolizine-12-carboxylate

1,2-二甲基蒽-9,10-二酮

2,2-dichloroindene-1,3-dione

2,3-di-(3-methyl-but-2-enyl)-1,4-naphthoquinone

1,3-dimethylanthracene-9,10-dione