Methyl Methacrylate is a methyl ester of methacrylic acid. Methyl methacrylate is a reactive resin, and the polymerized form is used as cement in dentistry, orthopaedic surgery and ophthalmology. The monomer form of this agent has relaxation effect on smooth muscle systemically, which might be a result of nitric oxide-mediated response. Methyl methacrylate is an enoate ester having methacrylic acid as the carboxylic acid component and methanol as the alcohol component. It has a role as an allergen and a polymerisation monomer. It is an enoate ester and a methyl ester. It derives from a methacrylic acid.

1. Mainly used for the production of polymethyl methacrylate (PMMA, commonly known as acrylic glass), in the manufacture of transparent sheets, tubes, lenses, decorative parts, etc.

2. As a polymerization monomer, used in the production of acrylic resins, coatings, adhesives, inks, plastic modifiers, etc.

3. Used in textile auxiliaries, leather treatment agents, dental materials, optical fibers, building materials and other fields.

4. Can be used as a solvent to dissolve some resins, coatings and organic compounds.