linalooli

Linalool, sometimes written linalooli, is a naturally occurring monoterpene alcohol with the formula C10H18O. It exists as two enantiomers, (R)-linalool and (S)-linalool, which have slightly different scent notes and are used to tune aroma profiles in perfumery. Linalool is widely distributed in essential oils of many plants, including lavender, orange blossom, bergamot, coriander, and basil.

In plants, linalool is biosynthesized from geranyl pyrophosphate and is released as a volatile compound that contributes to a plant’s fragrance. Commercially, linalool is obtained by extraction from essential oils via distillation or is produced synthetically from other terpenes such as myrcene. Its enantiomeric composition can influence its olfactory character and is considered in fragrance formulation.

Linalool is valued for its pleasant, floral, lavender-like aroma with citrusy undernotes, making it a common ingredient in cosmetics, soaps, detergents, and flavorings. It is often used as a scent ingredient in perfumes and personal care products and can act as a fragrance carrier or modifier in various formulations.

Physically, linalool is a colorless to pale-yellow liquid with a relatively low odor threshold, sparingly soluble in water and soluble in many organic solvents. It boils around 198°C and has a density near 0.87 g/mL. In terms of safety, linalool is generally regarded as a low-to-moderate toxicity fragrance compound; however, oxidized linalool hydroperoxides can be skin sensitizers, leading to regulatory labeling requirements for fragrance allergens in some jurisdictions.