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Eucalyptol (also called cineole) is a monoterpenoid colorless liquid, and a bicyclic ether. [1] It has a fresh camphor -like odor and a spicy, cooling taste. [ 1 ] It is insoluble in water, but miscible with organic solvents.
In the trade, eucalyptus oils are categorized into three broad types according to their composition and main end-use: medicinal, perfumery and industrial. [1] The most prevalent is the standard cineole-based "oil of eucalyptus", a colourless mobile liquid (which yellows with age), having a penetrating, camphoraceous, woody-sweet scent.
Volatile monoterpenes produced by plants can attract or repel insects, thus some of them are used in insect repellents, such as citronellol, eucalyptol, limonene, linalool, hinokitiol, menthol and thymol. [16] Ascaridole, camphor and eucalyptol are monoterpenes that have pharmaceutical use. [18] [19]
Eucalyptus (/ ˌ juː k ə ˈ l ɪ p t ə s /) [3] is a genus of more than 700 species of flowering plants in the family Myrtaceae.Most species of Eucalyptus are trees, often mallees, and a few are shrubs.
Thujone (/ ˈ θ uː dʒ oʊ n / ⓘ [2]) is a ketone and a monoterpene that occurs predominantly in two diastereomeric forms: (−)-α-thujone and (+)-β-thujone. [3] [4]Though it is best known as a chemical compound in the spirit absinthe, it is only present in trace amounts and is unlikely to be responsible for the spirit's purported stimulant and psychoactive effects.
Eucalyptus deglupta is a species of tall tree, commonly known as the rainbow eucalyptus, [3] Mindanao gum, or rainbow gum [4] that is native to the Philippines, Indonesia, Timor Leste and Papua New Guinea.
Citral is an acyclic monoterpene aldehyde. Being a monoterpene, it is made of two isoprene units.Citral is a collective term which covers two geometric isomers that have their own separate names; the E-isomer is named geranial (trans-citral; α-citral [2]) or citral A.
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