英文别名
2-(9-Oxo-1,1-dimethyl-1,2,9,9a-tetrahydro-fluorenyliden-(3))-indandion-(1,3);2-(1,1-dimethyl-9-oxo-1,2,9,9a-tetrahydro-fluoren-3-ylidene)-indan-1,3-dione;2-(1,1-Dimethyl-9-oxo-1,2,9,9a-tetrahydro-fluoren-3-yliden)-indan-1,3-dion;2-(1,1-dimethyl-9-oxo-1,2,9,9a-tetrahydro-3H-fluoren-3-ylidene)-1H-indene-1,3(2H)-dione;2-(1,1-dimethyl-9-oxo-2,9a-dihydrofluoren-3-ylidene)indene-1,3-dione