N-OCTYL METHACRYLATE is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. N-OCTYL METHACRYLATE is probably stable under normal laboratory conditions, but may be heat sensitive and susceptible to polymerization during long term storage. Polymerizes to a resin.