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menthol (countable and uncountable, plural menthols) (chemistry) a cyclic monoterpene alcohol; the major component of the essential oil of peppermint; used in pharmaceutical preparations as an antitussive and antipruritic agent, as a nasal decongestant, and in menthol cigarettes.
Pulegone, para-menth-4(8)ene-3-one, is a compound which occurs naturally in plants of the family Labiatae and essential oils obtained therefrom. Included within this family of plants is the genus Mentha and the species piperita.Mentha piperita is commonly known as peppermint.3. Method of claim 11, wherein the peppermint oil contains less than about 0.5% pulegone, an increased 1-menthone and menthol content, and is characterized by improved stability against menthofuran oxidation breakdown.