英文同义词: | 4,4,7,9-TETRAMETHYL-1,3,4,5-TETRAHYDRO-2-BENZOXEPINE-1,3-DIONE;2,4-DIMETHYL-6-(2-METHYLPROPYL)BENZENE-1,2''-DICARBOXYLIC ANHYDRIDE;4,4,7,9-tetramethyl-5H-2-benzoxepine-1,3-dione;2-Benzoxepin-1,3-dione, 4,5-dihydro-4,4,7,9-tetramethyl-;4,4,7,9-Tetramethyl-4,5-dihydrobenzo[c]oxepine-1,3-dione |