169944-38-1 2-(2-Cyano-3-amino-3-(dimethylamino)prop-2-enylidene)indolin-3-one 2-Propenenitrile, 3-amino-2-((1,3-dihydro-3-oxo-2H-indol-2-ylidene)methyl)-3-(dimethylamino)- 3-Amino-2-((1,3-dihydro-3-oxo-2H-indol-2-ylidene)methyl)-3-(dimethylamino)-2-propenenitrile