2-(2-Chlorophenyl)-3',6'-bis(diethylamino)spiro(1H-isoindole-1,9'-(9H)xanthene)-3(2H)-one 51750-84-6 EINECS 257-377-1 Spiro(1H-isoindole-1,9'-(9H)xanthen)-3(2H)-one, 2-(2-chlorophenyl)-3',6'-bis(diethylamino)-