Methyl Salicylate-d3 is deuterium labeled Methyl salicylate (M331025), an organic ester commonly found in wintergreens. In addition, various plants produce methyl salicylate as an anti-herbivore defense mechanism. Methyl salicylate has medical implications for treating joint, muscular pain and acute pain. Methyl slicylate can also be used as a flavoring agent.