... CAS NO :108-31-6 Byname :Maleic anhydride,cis-Butenedioic anhydride,Toxilic anhydride,2,5-FurandioneAppearance :white briquettes/flakesMolecular Formula : ... ,%≤0.005Iron (Fe) ,PPM≤5Application: a.Maleic anhydride's main purpose is to produce thermosetting resin, unsaturated ... (pesticides) and organic drug of raw material. b.Anhydride is also produce alkyd resin, paint, dyeing auxiliaries, ...