99.5% Purity PA

CAS No.85-44-9 Purity：≥99.5% Molecular Formula：C8H4O3 Phthalic anhydride, referred to as PA, a white scaly or crystalline powder. Phthalic anhydride is an important raw material in chemical industry, especially used in the manufacture of plasticizers, like Dibutyl phthalate and dioctyl phthalate.