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L-Menthol

Cyclic monoterpene alcohol mint

CAS Number

2216-51-5

HS Number

2906.10.00

Botanical Name

Botanical Family

Varied Mint

PRODUCT TYPE

Mint Derivatives

TECHNICAL APPLICATION

Personal Care

OLFACTIVES FAMILY

Mint Derivatives

FORMULA

C₁₀H₂₀O

IUPAC

(1R,2S,5R)-2-isopropyl-5-methylcyclohexanol

MANUFACTURE PROCESS

Extraction: Similar to L-Menthone, L-Menthol can be extracted from natural sources like peppermint oil. Fractional distillation is often used to separate menthol from other components of the oil.
Synthesis: L-Menthol can also be synthesized from various starting materials. One common method is the synthesis from citral, which involves several steps including hydrogenation and isomerization reactions.

APPLICATION

Pharmaceuticals: L-menthol is widely used in pharmaceutical products for its analgesic, antipruritic, and cooling effects. It is commonly found in throat lozenges, cough syrups, topical analgesic creams, and ointments for its ability to relieve minor aches and pains, soothe sore throats, and alleviate itching.

Personal Care Products: L-menthol is a popular ingredient in personal care products such as toothpaste, mouthwash, shaving creams, and aftershave lotions due to its refreshing and cooling sensation. It is also used in skincare products like lotions, balms, and lip balms for its soothing properties.

Flavoring Agent: L-menthol is used as a flavoring agent in food and beverages, particularly in products like chewing gum, candies, breath fresheners, and throat drops. Its cooling sensation adds a refreshing element to these products.

Aromatherapy: L-menthol is commonly used in aromatherapy due to its invigorating and refreshing scent. It is often added to essential oils, massage oils, and vapor rubs to promote relaxation, alleviate congestion, and relieve muscle tension.

Dental Care: L-menthol is utilized in dental care products such as mouthwashes and toothpaste for its antibacterial properties and ability to freshen breath.

Topical Analgesics: L-menthol is frequently included in topical analgesic products such as muscle rubs and creams for its ability to provide temporary relief from minor aches and pains associated with conditions like arthritis, muscle strains, and backaches.

Insect Repellents: L-menthol is sometimes used in insect repellents and insecticides due to its natural insecticidal properties. It can help deter insects and pests from infesting areas where it is applied.

Industrial Applications: L-menthol is used in certain industrial applications, such as in the manufacture of plastics, rubber, and coatings, where its cooling properties can be beneficial.