1,3-Indandione, 2-(4-dimethylaminophenylmethylene) 1,3-Indandione, 2-[p-(dimethylamino)benzylidene]- 1H-Indene-1,3(2H)-dione, 2-[[4-(dimethylamino)phenyl]methylene]- 2-[4-(Dimethylamino)benzylidene]-1,3-indandione 21889-13-4 NSC86434