Maleic anhydride

Maleic anhydride (CAS 108-31-6, MAN) is a cyclic organic anhydride derived from the oxidation of benzene or butane. It is commercially available under trade names including BM 10, Crystal Man, and 2,5-Furandione, and carries no assigned E-code. It belongs to the monomers and building blocks category.

In polymer manufacturing, maleic anhydride reacts with polyols or epoxy resins to form cross-linked networks, improving mechanical strength and chemical resistance in coatings and composites. In personal care formulations, it functions as a surface modifier, enabling covalent bonding between active ingredients and substrates such as hair or textile fibers.

Maleic anhydride is supplied in pellet, lump, or powder form and is subject to REACH registration requirements within the EU. Procurement should confirm compliance with applicable purity specifications and review the substance's classification under CLP regulations. HS code 29171400 applies for import and export documentation.