Phthalic Anhydride Market Overview The Phthalic Anhydride Market is a crucial segment of the industrial chemicals industry, widely used as an intermediate in the production of plasticizers, unsaturated polyester resins (UPR), alkyd resins, and various specialty chemicals. Phthalic anhydride is an organic compound with the chemical formula C₆H₄(CO)₂O, primarily derived from the oxidation of...