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Definition and Structure

Chemical Definition：L-Menthyl lactate is an organic ester from lactic acid and menthol.
Molecular Structure：It has an ester group from lactic acid and menthol, with menthyl and lactate residues.

Physical and Chemical Properties

Physical Properties：Usually colorless - light yellow liquid or low - melting solid at RT, with cool mint aroma, insoluble in water, soluble in ethanol and oils, and volatile.
Chemical Properties：As an ester, it can hydrolyze into lactic acid and menthol in acidic or basic conditions, and participate in other organic reactions.

Preparation Methods

Chemical Synthesis Method：Use lactic acid and menthol with acidic catalyst for esterification. Control reaction conditions like temperature, time, ratio for better conversion and purity.
Biosynthesis Method：Employ bio - catalysts like enzymes or microbes for esterification. It's mild, selective and eco - friendly, but costly for large - scale production.

Application 

Food and Beverage Industry：As a food additive, used in candies, gums, drinks, etc. to offer cool taste.
Daily Chemical Products Field：Widely used in perfumes, skincare, shampoos, etc. for cool feeling and more.
Medical and Health - care Field：With functions like relieving itching, used in external meds and health products.
Other Fields：In tobacco to improve taste, in textile for cool fabrics, in agriculture as growth regulator.