Alias：Cyclobutane-1,2,3,4-tetracarboxylic dianhydride;1,2,3,4-Cyclobutanetetracarboxylic Dianhydride;1,2,3,4-Cyclobutanetetracarboxylic Dianhydride (purified by sublimation);Cyclobuta[1,2-c:3,4-c']difuran-1,3,4,6(3aH,3bH,6aH,6bH)-tetraone;1,2,3,4-cyclobutanetetracarboxylic acid dianhydride;1,2,3,4-cyclobutantetracarboxylic acid dianhydride;Cyclobutane-1,2,3,4-Tetr;Cyclobutane-1,2,3,4-tetracarboxylic;Cyclobutanetetracarboxylic acid dianhydride;Cyclobutanetetracarboxylic dianhydride;Maleic anhydride cyclic dimer;Maleic anhydride cyclic dimer.;1,2,3,4-Cyclobutanetetracarboxylic1,2:3,4-dianhydride (7CI,8CI);1,2,3,4-Cyclobutanetetracarboxylic dianhydride(6CI);Cyclobuta[1,2-c:3,4-c']difurantetrone, tetrahydro- (9CI);Cyclobutane-1,2,3,4-tetracarboxylic acid dianhydride;Cyclobutanetetracarboxylicdianhydride