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What is menthol
**Introduction to Menthol** Menthol is a naturally occurring organic compound derived from peppermint and other mint oils, or produced synthetically. Known for its cooling and soothing properties, menthol is widely used in pharmaceuticals, cosmetics, and food products. It acts as a mild local anesthetic, providing relief from pain, irritation, and congestion, making it a key ingredient in cough drops, balms, and nasal inhalers. In personal care, menthol adds a refreshing sensation to toothpaste, mouthwash, and skincare products. Its distinctive minty aroma also enhances flavors in candies, gums, and beverages. With its versatile applications, menthol remains a popular choice for both therapeutic and sensory benefits.
Preparation Process: Menthol is synthesized from **thymol** or **citral** via hydrogenation. 1. **From Thymol**: Thymol is hydrogenated using a nickel or palladium catalyst at 100–150°C under pressure, yielding racemic menthol. Optical resolution separates **l-menthol**, the desired isomer. 2. **From Citral**: Citral is cyclized to **isopulegol** using acid catalysis, then hydrogenated over Raney nickel to produce menthol. 3. **Synthetic Routes**: Alternative methods include the **Takasago process**, where myrcene is converted to **l-menthol** via enantioselective isomerization using a chiral catalyst. Purification involves distillation or recrystallization for high-purity menthol.
Usage Scenarios: Menthol is widely used in pharmaceuticals, cosmetics, and food products for its cooling and soothing effects. In medicine, it acts as a topical analgesic, relieving minor pain, itching, and irritation in creams, balms, and ointments. It is a key ingredient in cough drops, nasal decongestants, and throat lozenges due to its mild anesthetic and anti-inflammatory properties. In oral care, menthol is added to toothpaste and mouthwash for its refreshing taste and antibacterial benefits. The food and beverage industry uses it as a flavoring agent in candies, chewing gum, and menthol cigarettes. Additionally, menthol is employed in aromatherapy and perfumery for its minty fragrance.
menthol Basic Info
menthol Price
1. **United States**: $20–$50 per kg
2. **China**: $10–$30 per kg
3. **Russia**: $15–$40 per kg
4. **Germany**: $25–$60 per kg
5. **India**: $8–$25 per kg
6. **Japan**: $30–$70 per kg
7. **Brazil**: $15–$35 per kg
8. **South Korea**: $25–$55 per kg
9. **Philippines**: $10–$30 per kg
10. **United Kingdom**: $25–$60 per kg
11. **France**: $25–$60 per kg
12. **Mexico**: $15–$40 per kg
13. **Canada**: $20–$50 per kg
14. **South Africa**: $10–$30 per kg
15. **Egypt**: $10–$30 per kg
16. **Turkey**: $15–$35 per kg
17. **Thailand**: $10–$25 per kg
18. **Indonesia**: $8–$20 per kg
If no specific data is available for a country, it is marked as "No results." Prices are approximate and subject to change.
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