Each enantiomer evokes different neural responses in humans, so are classified as possessing distinct scents. (S)-(+)-Linalool is perceived as sweet, floral, petitgrain-like (odor threshold 7.4 ppb) and the (R)-form as more woody and lavender-like (odor threshold 0.8 ppb).
In addition, linalool is used as an insecticide against flea, fruit fly, and cockroach. It can also be used as a method of pest control for codling moths. Linalool creates a synergistic effect with the codling moth's pheromone called codlemone, which increases attraction of males. Linalool is used in some mosquito-repellent products; however, the U.S. EPA notes that "a preliminary screen of labels for products containing [l]inalool (as the sole active ingredient) indicates that efficacy data on file with the Agency may not support certain claims to repel mosquitos."
Safety and potential toxicity
Linalool can be absorbed by inhalation of its aerosol and by oral intake or skin absorption, potentially causing irritation, pain and allergic reactions. Some 7% of people undergoing patch testing in Europe were found to be allergic to the oxidized form of linalool.
The US Food and Drug Administration (FDA) lists linalool in the Code of Federal Regulations under substances generally recognized as safe, synthetic flavoring substances and adjuvants. 
^Kasper S, Gastpar M, Müller WE, Volz HP, Möller HJ, Dienel A, Schläfke S (September 2010). "Silexan, an orally administered Lavandula oil preparation, is effective in the treatment of 'subsyndromal' anxiety disorder: a randomized, double-blind, placebo controlled trial". International Clinical Psychopharmacology. 25 (5): 277–87. doi:10.1097/YIC.0b013e32833b3242. PMID20512042. S2CID46290020.
^Ibrahim EA, Wang M, Radwan MM, Wanas AS, Majumdar CG, Avula B, et al. (March 2019). "Analysis of Terpenes in Cannabis sativa L. Using GC/MS: Method Development, Validation, and Application". Planta Medica. 85 (5): 431–438. doi:10.1055/a-0828-8387. PMID30646402. S2CID58668648.
^Klimankova E, Holadová K, Hajšlová J, Čajka T, Poustka J, Koudela M (2008). "Aroma profiles of five basil (Ocimum basilicum L.) cultivars grown under conventional and organic conditions". Food Chemistry. 107 (1): 464–472. doi:10.1016/j.foodchem.2007.07.062.
^Vila R, Mundina M, Tomi F, Furlán R, Zacchino S, Casanova J, Cañigueral S (February 2002). "Composition and antifungal activity of the essential oil of Solidago chilensis". Planta Medica. 68 (2): 164–7. doi:10.1055/s-2002-20253. PMID11859470.
^Albert Eschenmoser: "Leopold Ruzicka - From the Isoprene Rule to the Question of Life's Origin" CHIMIA 44 (1990)
^"Linalool". Toxnet, National Library of Medicine, US National Institutes of Health. 14 January 2016. Archived from the original on 28 February 2019. Retrieved 21 May 2019.
^Ung CY, White JM, White IR, Banerjee P, McFadden JP (March 2018). "Patch testing with the European baseline series fragrance markers: a 2016 update". The British Journal of Dermatology. 178 (3): 776–780. doi:10.1111/bjd.15949. PMID28960261. S2CID4434234.