1,1-二氰基-2-(-p-硝基苯基)-乙烯

10H-吲哚并[3,2-b]喹啉

[2,2'-联-1H-吲哚]-3,3'-二醇

N(1')-乙基靛玉红

2-[2-(3-oxo-1H-indol-2-ylidene)ethylidene]-1H-indol-3-one