Dimethylmaleic anhydride

2,3-2,3-dimethylmaleic anhydride; 3,4-dimethyl-2,5-dihydrofuran  

CAS Number: 766-39-2.Molecular Formula: C6H6O3.Molecular Weight: 126.11.

Chemical Structure: Appearance: White to off-white crystals, crystalline powder or crystalline solid.Infrared Spectrum: Conforms to structure.1H NMR Spectrum: Conforms to structure.

M.P.: 93-96.

B.P.: 223.Assay (GC): More than 97%.