116870-90-7 3-(2-Amino-5-cyanophenyl)-2-(2-diethylaminoethyl)isoindolin-1-one fumarate hydrate Benzonitrile, 4-amino-3-(2-(2-(diethylamino)ethyl)-2,3-dihydro-3-oxo-1H-isoindol-1-yl)-, (E)-2-butenedioate, hydrate (1:1:1)