What is Methyl Methacrylate? A Complete Overview Methyl methacrylate (MMA) is one of the most versatile and commercially significant organic compounds in the global chemical industry. Recognized by its chemical formula CH₂=C(CH₃)COOCH₃, it is a colorless, flammable liquid monomer with a faintly sweet, fruity odor. MMA serves as the fundamental building block for polymethyl methacrylate (PMMA)...