171853-02-4 2-(2-Cyano-3,3-diaminoprop-2-enylidene)indolin-3-one 2-Propenenitrile, 3,3-diamino-2-((1,3-dihydro-3-oxo-2H-indol-2-ylidene)methyl)- 3,3-Diamino-2-((1,3-dihydro-3-oxo-2H-indol-2-ylidene)methyl)-2-propenenitrile