#12288; Maleic anhydride is a white needle-like,briquette of flaky crystalline with irritant odour and sour,inflammable and sublimating It can be freely dissolved in water to form arid ,Maleic anhydride is used as a chemical intermediate in the synthesis of unsaturated polyester resin,fumaric and tararic acid,certain agricultural chemicals,1.4 butanediol,etc.  Chemical Name:Maleic anhydride  Molecular Formula:C4H2O3  Molecular Weight:98.02  Structural Formula: