Methyl nonanoate-d17 (Pelargonic acid methyl ester-d17) is the deuterium labeled Methyl nonanoate (HY-W015308). Methyl nonanoate is an ester compound obtained by the reaction of methanol and nonanoic acid. It has a fruity aroma and is commonly used as a flavoring agent in a variety of foods such as baked goods, confectionary and beverages. Methyl nonanoate is also used as a fragrance ingredient in the manufacture of perfume, cologne and personal care products. Furthermore, it has applications in industrial settings, for example in the production of solvents, resins and plasticizers.