3,4-Dimethyl-2,5-furandione;3,4-DIMETHYL-2,5-DIHYDROFURAN-2,5-DIONE;DIMETHYLMALEIC ANHYDRIDE;2,2’-Dimethylmaleinsαureanhydrid;2,5-Furandione,3,4-dimethyl-;3,4-dimethyl-2,5-furanedione;3,4-dimethyl-5-furandione;alpha,beta-Dimethylmaleic anhydride;Anhydride of dimethylmaleic acid;Dimethylmaleic acid anhydride;dimethyl-maleicanhydrid;Maleic anhydride, dimethyl-;Pyrocinchonic anhydride;DIMETHYLMALEIC ANHYDRIDE CRYSTALLINE;4,5-DIMETHYL-1,3-DIOXA-2-OXO-CYCLOPENTENE;2,5-Dihydro-3,4-dimethylfuran-2,5-dione;Dimethylmaleic anhydride;2,3-Dimethylmaleic anhydride;Dimethylketol;dimethylketene O-ethyl Se-methyl selenoacetal;acetylmethylcarbino;acetyl methyl carbinol;3-hydroxy-2-oxobutane;3,4-dimethylmaleic acid anhydride;2-hydroxybutan-3-one;2,3-dimethylfumaric anhydride;2,2'-dimethylmaleic anhydride;1-ethoxy-2-methyl-1-methylselanyl-propene;3,4-Dimethylfuran-2,5-dione;2.3-Dimethylmaleicanhydride;2,2'-OXYBIS-(ETHYLAMINE) DIHYDROCHLORIDE