Monoterpenes are by far the most fragrant of all of the groups away from terpenes (select footnote 1) The smallest of terpenes are monoterpenes . They contain the compound C10H16, come from different flowers, fruits and leaves and are known as the main component of essential oils, fragrances and many structural isomers (see footnote 1). Examples for the types of monoterpenes found in natural scents are ?-pinene, which imparts scent to pine trees, and limonene from citrus plants (see footnote...

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