英文别名
(3ar,7ac)-3a,4,7,7a-Tetrahydro-4t.7t-aetheno-furo<3,4-c>pyran-1.3.6-trion;3-oxo-2-oxa-bicyclo[2.2.2]oct-7-ene-5,6-dicarboxylic acid anhydride;4,7-Etheno-3H-furo(3,4-c)pyran-1,3,6-trione, 3a,4,7,7a-tetrahydro-;4,8-dioxatricyclo[5.2.2.02,6]undec-10-ene-3,5,9-trione