4-(2-((3',6'-bis(diethylamino)-3-oxospiro(isoindoline-1,9'-xanthene)-2-yl)ethylimino)methyl)benzonitrile
4-(2-((3',6'-bis(diethylamino)-3-oxospiro(isoindoline-1,9'-xanthene)-2-yl)ethylimino)methyl)benzonitrile