Widely distributed in essential oils (Angelica, Eucalyptus, Lavandula, Mentha, Pinus spp.). Flavour ingredient Phellandrene is the name for a pair of organic compounds that have a similar molecular structure and similar chemical properties. alpha-Phellandrene and beta-phellandrene are cyclic monoterpenes and are double-bond isomers. The phellandrenes are used in fragrances because of their pleasing aromas. (Wikipedia)