The real vanilla flavor, vanillin, was made by Tiemann in 1874.
vanillin also occurs in Siam benzoin, in raw beet-sugar and in cloves.
vanillin, a white crystalline solid, melting at 80°-82° C. and prepared by the oxidation of isoeugenol.
vanillin va·nil·lin (və-nĭl'ĭn, vān'ə-lĭn)
A white or yellowish crystalline compound found in vanilla beans and certain balsams and resins and used in flavorings and pharmaceuticals.