Maleic Anhydride CAS:108-31-6

Maleic anhydride (CAS No. 108-31-6), also known as cis-butenedioic anhydride, is a white crystalline powder with the molecular formula C₄H₂O₃. It is an important unsaturated acid anhydride compound characterized by its pungent odor, ease of sublimation, and high chemical reactivity. It is readily soluble in organic solvents and easily hydrolyzed by water. It is widely used in chemical, plastics, coatings, and pharmaceutical industries, and is a key industrial intermediate.

- Chemical and Plastics Industry: Used as a core monomer in the synthesis of unsaturated polyester resins, for the manufacture of fiberglass, coatings, adhesives, etc.; copolymerized with styrene to prepare engineering plastics, improving material performance and meeting the needs of the automotive, electronics, and other industries.

- Pharmaceutical and Pesticide Industry: Used as an intermediate in drug synthesis, for the preparation of antibiotics, anti-inflammatory drugs, etc.; used in the synthesis of various pesticide intermediates, suitable for the research and development and production of herbicides, fungicides, and other pesticides.

- Coatings and Textiles Industry: Used in the production of alkyd resins, modified resins, etc., to improve the weather resistance and adhesion of coatings; used as a raw material for textile auxiliaries, for the finishing and modification of fabrics, enhancing fabric performance.

- Other Fields: Used in the production of food additives (such as acidulants and preservatives, subject to national standard limits); used as a laboratory chemical reagent; also used in the preparation of surfactants, plasticizers, and other products.

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