L-menthol: Alias: peppermint ice; p-alkane-3-ol; terpene alcohol-[3]; L-menthol; L-menthol; L-menthol; 5-methyl-2-isopropylcyclohexanol; menthol. Colorless needle-like crystals with a cool mint aroma. Relative density d₁₅¹⁵=0.890, melting point 41～43℃, boiling point 216℃, 111℃(2.67kPa), specific rotation αD²⁰=-49.3°, refractive index nD²⁰=1.4609. Soluble in organic solvents such as ethanol, acetone, ether, chloroform and benzene, slightly soluble in water. The chemical properties are relatively stable and can volatilize together with steam.

Use: Both menthol and racemic menthol can be used as flavoring agents for toothpaste, perfume, beverages and candies. In medicine, it is used as a stimulant, acting on the skin or mucous membranes, and has the effect of cooling and relieving itching; oral administration can be used as an anti-wind medicine for headache and inflammation of the nose, throat, and throat. Its esters are used in perfumes and medicines.

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