Synthesis: Several stereoisomers are possible; only l-isopulegol
and d-α-isopulegol have been isolated from mixtures of alcohols
obtained by cyclization of d-citronellal.
(–)-Isopulegol is a monoterpene that has been found in the essential oils of several aromatic plants, including Cannabis, with diverse biological activities. It has antibacterial activity against S. aureus, E. faecium, E. coli, and M. smegmatis (MICs = 0.78, 12.5, 0.78, and 1.56 μl/ml, respectively, in an agar diffusion assay) and antifungal activity against C. albicans and A. niger (MIC = 1.56 μl/ml for both in an agar diffusion assay). (–)-Isopulegol inhibits C. albicans morphogenesis, adhesion, and biofilm formation (MICs = 0.125, 4, and 0.25 mg/ml, respectively). In vivo, (–)-isopulegol (50 mg/kg, i.p.) increases immobility time in the forced swim and tail suspension tests and increases the number of head dips in a hole board test and time spent in the open arms of the elevated plus maze in mice, indicating depressant- and anxiolytic-like activity. It reduces the size of ulcerated lesions in the stomach in mouse models of ethanol- and indomethacin-induced gastric lesions when administered at a dose of 100 mg/kg.
Isopulegol is a cyclic nonaromatic alcohol.
Water-white liquid; mint-like odor. Combustible.
Available forms: The acetate.
l-Isopulegol has been reported found in the essences of lemongrass, East African geranium and Eucalyptus
citriodora; d-isopulegol is present in the oils of Backhousia and Baeckea citriodorae; d-neoisopulegol is found in Mentha rotundifolia. Also reported found in mint, mandarin, orange juice, citrus peel oils, currant bud, ginger, corn mint oil, cognac, rum, buchu oil,
lemon balm and mastic gum oil
isopulegol is used in perfume compositions as a "lift" to Rose notes, Geranium
notes, Reseda and Oriental types, various
floral fragrances, including Tuberose, etc.
It is also used in flavor compositions in
concentrations equal to 5 to 30 ppm in the
finished product. The application is mainly in
the minty types and in a few Berry flavor
types.
ChEBI: A natural product found in Citrus hystrix.
Several stereoisomers are possible; only l-isopulegol and d-α-isopulegol have been isolated from mixtures of alcohols
obtained by cyclization of d-citronellal.
Taste characteristics at 30 ppm: minty cooling, herbaceous peppermint nuance.
Isopulegol is monoterpene alcohol, a useful ingredient for the production of fragrances in perfume industries. It is also used as a starting material in the manufacture of menthol by the hydrogenation process. Menthol is an important component in cosmetics, pharmaceuticals, and toothpaste.
Flammability and Explosibility
Non flammable
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10.1055/s-2006-957877[2] JAYANT S RAUT. Terpenoids of plant origin inhibit morphogenesis, adhesion, and biofilm formation by Candida albicans.[J]. Biofouling, 2013, 29 1: 87-96. DOI:
10.1080/08927014.2012.749398[3] MARIA IZABEL GOMES SILVA . Central nervous system activity of acute administration of isopulegol in mice[J]. Pharmacology Biochemistry and Behavior, 2007, 88 2: Pages 141-147. DOI:
10.1016/j.pbb.2007.07.015[4] MARIA IZABEL GOMES SILVA. Gastroprotective activity of isopulegol on experimentally induced gastric lesions in mice: investigation of possible mechanisms of action.[J]. Naunyn-Schmiedeberg’s archives of pharmacology, 2009, 380 3: 233-245. DOI:
10.1007/s00210-009-0429-5
