| Customization: | Available |
|---|---|
| CAS No.: | 89-78-1 1490-04-6 |
| Formula: | C10h20o |
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Menthol is extracted from the leaves and stems of peppermint. It is a white crystal and is the main component of peppermint and peppermint essential oils. Menthol generally has two isomers (D-type and L-type), and natural menthol is mainly L-isomer (L-menthol), where menthol generally refers to racemic menthol (DL-menthol ). Menthol can be used as a flavoring agent in toothpaste, perfume, beverage and candy. Its esters are also used in fragrances.
| Item | Specifications | Results | |
| USP31 | BP2012 | ||
| Identification | Colorless, transparent hexagonal or needlelike crystals. | Conforms | |
| Melting point | 41~44ºC | About43ºC | 41.5~42.5ºC |
| Solubility | 1g soluble in 5ml of 90%(v/v) alcohol, forming a clear solution | Conforms | |
| Specific rotation | -45°~-51° | About-50° | -49.68° |
| Limit of nonvolatile residue | Not overrun 0.05 under condition of 105ºC | 0.01 | |
| Organic volatile impurities | Solvent-Use dimethyl sulfoxide | Meets the requirement | |
| Chromatographic purity | The peak response due to menthol is not less than 98% | ≥99.3% | |
| As content | ≤3ppm | <3ppm | |
| Heavy metals | ≤10ppm | <10ppm | |
| Residue on ignition | ≤0.1% | 0.03% | |
| Related substances | Examine by gas chromatography | Conforms | |
| Conclusion | The results conform with BP2012/USP31 standards | ||
1. Both menthol and racemic menthol are used as flavoring agents in toothpaste, perfume, beverages and candies.
2. Widely used in daily flavors, food flavors and tobacco flavors. Generally 1100mg/kg in chewing gum; 400mg/kg in candy; 130mg/kg in baked goods; 68mg/kg in ice cream; 35mg/kg in soft drinks.
3. It has bactericidal and antiseptic effects.
4. Used as a special additive for curative cosmetics. Used for toilet water, etc. It can also be used as a flavoring agent for toothpaste, perfume, beverage and candy. For the system of candy, beverages, spices and medicine.
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