Synonyms: cis-Butenedioic anhydride; 2,5-Furandione; MAA; Maleic acid anhydride
CAS No.: | EINECS No.: | Molecular Formula: | Molecular Weight: |
108-31-6 | 203-571-6 | C₄H₂O₃ | 98.06 |
Maleic Anhydride (MAA) is a white, crystalline solid with a characteristic acrid odor, supplied as flakes or briquettes. It is one of the most versatile C4 chemical intermediates, widely used as a raw material for unsaturated polyester resins (UPR), 1,4-butanediol (BDO), fumaric and malic acid, alkyd resins, styrene-maleic anhydride copolymers, lubricant additives and agricultural chemicals.
With stable upstream production capacity in China, XG Chem supplies solid premium-grade maleic anhydride (purity ≥99.5%) in export-standard packaging, with a Certificate of Analysis provided for every batch.
Item | Specification |
Appearance | White flakes or briquettes |
Purity (MAA content) | ≥ 99.5 % |
Melt color (Pt-Co) | ≤ 25 Hazen |
Crystallization point | ≥ 52.5 °C |
Ash content | ≤ 0.005 % |
Iron content | ≤ 3 ppm |
Custom specifications are available on request. COA is issued with every shipment; samples for testing are welcome.
Unsaturated Polyester Resins (UPR) – the largest application; MAA provides rigidity and fast cure in FRP, SMC/BMC and coating resins
1,4-Butanediol (BDO) / THF / GBL – feedstock for hydrogenation downstream chains
Fumaric acid & malic acid – food and feed grade acidulants
Alkyd resins & paints – improves hardness, adhesion and drying performance
Styrene-Maleic Anhydride (SMA) copolymers – for coatings, paper sizing and plastics
Lubricant additives – PIBSA/ashless dispersants
Agrochemicals – intermediates for maleic hydrazide and other crop protection products
25 kg PP woven bags with PE liner (palletized, stretch-wrapped)
500 kg / 1,000 kg jumbo bags
Molten bulk supply (ISO tank) on request
Storage: keep in a cool, dry and well-ventilated area. Maleic anhydride is moisture-sensitive and hydrolyzes to maleic acid — keep containers tightly sealed and away from water, oxidizers and strong bases.
Consistent premium-grade quality (≥99.5%), COA with every batch
Export-standard packaging and documentation (MSDS, COA, B/L)
Samples available for lab evaluation before bulk orders
Dedicated support on specification matching and batch data verification (COA / ICP-MS)
Jinan Xinggao Chemical Technology Co., Ltd. (XG Chem)
Email: sales06@xinggaochem.com Website: www.xgchemicals.com
Tell us your specification, packaging and quantity — we will reply with a quotation within 24 hours.