.alpha.,.beta.-Dimethylmaleic anhydride 2,3-Dimethylmaleic anhydride 2,5-Furandione, 3,4-dimethyl- 766-39-2 Dimethylmaleic acid anhydride Dimethylmaleic anhydride Maleic anhydride, dimethyl- NSC92512 Pyrocinchonic anhydride WLN: T5VOVJ D1 E1