Phthalic anhydride is a white crystalline substance with a strong smell. It is primarily used as a chemical intermediate in the production of various chemicals such as plasticizers, polyester resin, alkyd resins, and dyes. Our company, a Chinese manufacturing factory, supplies high-quality phthalic anhydride with CAS 85-44-9 at competitive prices. We use advanced technologies and adhere to strict quality control measures to guarantee the purity and consistency of our products. Our phthalic anhydride is available in bulk quantities and can be delivered worldwide. Contact us today to learn more about our products and services.