Methyl Methacrylate (abbreviated as MMA, CAS: 80-62-6), also known as Methyl 2-Methyl Propenoate, is a key acrylate monomer and important organic chemical raw material with the molecular formula C₅H₈O₂. It is a colorless, transparent, and volatile liquid at room temperature, slightly soluble in water and miscible with ethanol, ether, acetone, and other organic solvents. Featuring high polymerization activity, MMA is the only monomer for producing Polymethyl Methacrylate (PMMA/acrylic glass). It can also be copolymerized with various monomers for modification. With advantages of high light transmittance, weather resistance, and easy molding, it is widely used in high-end manufacturing fields such as building materials, automobiles, electronics, medical treatment, and coatings, becoming an indispensable basic raw material in the chemical industrial chain.
| CAS: | 80-62-6 | UN: | 1247 |
| Other Names: | Methyl Methacrylate, MMA, Methyl 2-Methyl Propenoate, Methacrylic Acid Methyl Ester | Appearance: | It is a colorless, transparent, and volatile liquid |
| Density: | 0.94 g/cm³ | Melting point: | −48 °C |
| Boiling point: | 101 °C | Flash point: | 2°C |
| UN Hazard Class: | 3 | UN Pack Group: | III |
| Molecular Formula: | C5H8O2 | ||
