α-Methacrylic Acid

• CAT Number: R045654
• CAS Number: 79-41-4
• Molecular Formula: C4H6O2
• Molecular Weight: 86.09
• Purity: ≥95%
• Synonyms: 2-Methyl-2-propenoic Acid; Methacrylic Acid; 2-Methyl-2-propenoate; 2-Methyl-2-propenoic Acid; 2-Methylacrylic Acid; Acryester MAA; GE 100; GE 110; Isobutenic Acid; Light Ester A; Loctite 3298; MAA; Methylacrylic Acid; NSC 7393; Norsocryl MAA; α-Meth
• Storage: -20°C
• IUPAC Name: 2-methylprop-2-enoic acid
• InChI: InChI=1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
• InChIKey: CERQOIWHTDAKMF-UHFFFAOYSA-N
• SMILES: CC(=C)C(=O)O

α-Methacrylic acid(CAT: R045654), commonly referred to as methacrylic acid (MAA), is an unsaturated carboxylic acid with the chemical formula C₄H₆O₂. It features a vinyl group (CH₂=C–) adjacent to a carboxylic acid, making it highly reactive in free-radical polymerization. MAA is widely used as a monomer in the production of methacrylate-based polymers and copolymers, which are key components in adhesives, coatings, resins, plastics, and dental materials. The carboxyl functionality also enables further chemical modification, improving adhesion and compatibility in polymer blends.