Itaconic anhydride
2-Methylenesuccinic anhydride, Methylenebutanedioic anhydride, ITA-AN
- CAS
- 2170-03-8
- EC
- 218-518-2
- Sectors
- Plastics & Polymers, Coatings, Adhesives, Sealants & Elastomers, Rubber & Elastomers
Itaconic anhydride (CAS 2170-03-8) is a cyclic anhydride monomer that carries a reactive double bond and is supplied as a white to cream crystalline powder, used as a chemical intermediate in bio-based polymers, biodegradable plastics, styrene-butadiene latex modification and high-performance coating formulations. Functioning as a critical chemical intermediate, it enhances material properties by introducing functional groups that significantly improve adhesion, cross-linking capabilities, and dye receptivity in copolymers.
Supplied as a hygroscopic crystalline solid, this compound is essential for manufacturing biodegradable plastics, modifying styrene-butadiene latexes, and developing high-performance coating formulations.
Typical Properties
| Molecular formula | C5H4O3 |
|---|---|
| Molecular weight | 112.08 g/mol |
| Appearance | WHITE TO CREAM CRYSTALLINE POWDER |
| Form | Crystalline Powder |
| Color | White to cream |
| Melting point | 69 °C |
| Boiling point | 115 °C |
| Density | 1.2600 |
| Water solubility | Hydrolyzes in water. |
| Flash point | 114-115°C/12mm |
| GHS signal word | Warning · Irritant / harmful |
| HS code | 29171900 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Itaconic anhydride
Applications
- Polymer Modification: Used as a co-monomer to introduce polar groups into styrene-butadiene rubber, improving stability and adhesion properties.
- Coatings & Adhesives: Acts as a binding promoter in acrylic emulsions and alkyd resins to enhance durability and substrate bonding.
- Biodegradable Plastics: Serves as a key intermediate in the synthesis of polyitaconic acid and other bio-based, compostable polymers.
- Chemical Synthesis: Utilized as a precursor for deriving various itaconate esters and succinic derivatives for specialty pharmaceutical and agricultural applications.
Safety & Risks
Itaconic anhydride reacts with water to form acid and can cause severe health effects upon contact. It causes skin irritation and may cause an allergic skin reaction. It causes serious eye damage and respiratory irritation. Personnel must wear protective gloves, chemical safety goggles, and respiratory protection to prevent inhalation of dust or vapors. Store in a cool, dry place away from moisture.
Packaging
• 25 kg Multi-ply Paper Bags (with PE liner)
• 25 kg Fiber Drums
• 500 kg Bulk Bags