3',6'-Bis(diethylamino)-2-phenylspiro(1H-isoindole-1,9'-(9H)xanthene)-3(2H)-one 3,6-Bis(diethylamino)fluoran-gamma-anilinolactam 37224-18-3 38660-35-4 39379-49-2 AI3-17350 EINECS 254-066-2 NSC 75508 Spiro(1H-isoindole-1,9'-(9H)xanthen)-3(2H)-one, 3',6'-bis(diethylamino)-2-phenyl-