英文别名
3,3,6,6-tetramethyl-9-(4-oxo-4H-chromen-3-yl)-3,4,5,6,7,9-hexahydro-2H-xanthene-1,8-dione;1,2,3,4,5,6,7,8-octahydro-3,3,6,6-tetramethyl-9-(4-oxo-4H-1-benzopyran-3-yl)-9H-xanthene-1,8-dione;3,3,6,6-Tetramethyl-9-(4-oxo-4h-chromen-3-yl)-3,4,5,6,7,9-hexahydro-1h-xanthene-1,8(2h)-dione;3,3,6,6-tetramethyl-9-(4-oxochromen-3-yl)-4,5,7,9-tetrahydro-2H-xanthene-1,8-dione