Maleic Anhydride

Maleic anhydride is a highly versatile industrial chemical widely used as a building block in manufacturing, chemical synthesis, and specialty formulations. Known for its reactivity, versatility, and ability to enhance product performance, maleic anhydride is a critical raw material in the production of unsaturated polyester resins (UPR), which are essential in fiberglass-reinforced plastics, coatings, and construction materials. Its functionality as an intermediate also makes it a key ingredient in the synthesis of specialty chemicals and additives.

Beyond resins, maleic anhydride is employed in the production of alkenyl succinic anhydrides (ASAs) for paper sizing, agricultural chemicals, lubricants, and copolymers. It is also used in coatings, adhesives, and pharmaceuticals, where it contributes to stability, durability, and performance. With its broad industrial use, cost-effectiveness, and compatibility with multiple chemistries, maleic anhydride continues to be an essential material across industries including construction, automotive, marine, agriculture, and specialty chemical manufacturing.

Synonyms: 2,5-furandione, maleic acid anhydride, toxilic anhydride

Characteristics:

IUPAC Name: Furan-2,5-dione

CAS Number: 108-31-6

UN Number: 2215

Recommended Use / Industries:

• Production of unsaturated polyester resins
• Additives in coatings and adhesives
• Agricultural chemicals
• Lubricant and plasticizer intermediates