spiro,cyclopentane,isobenzofuran,thione,benzofuran,furan
Isobenzofuran
64969-09-11(3H)-Isobenzofuranone,3-[4-(dibutylamino)phenyl]-6-(dimethylamino)-3-[4-(dimethylamino)phenyl]-
6493-54-5Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,4',5'-dibromo-3',6'-dihydroxy-, potassium salt (1:2)