2-tert-Butyl-6-(diethylamino)spiro[9H-xanthene-9,1'(3'H)-isobenzofuran]-3'-one

2'-(tert-butyl)-6'-(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one

Spiroisobenzofuran-1(3H),9-9Hxanthen-3-one, 6-(diethylamino)-2-(1,1-dimethylethyl)-

6'-(Diethylamino)-2'-(1,1-dimethylethyl)spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one