Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Information
Name: (+)-(1S,4R)-p-Mentha-2,8-dien-1-ol
Alias: L-Piperitol, (1S,4R)-1-Hydroxy-1-methyl-4-isopropenylcyclohex-2-ene
CAS No.: 22972-51-6
Molecular Formula: C10H16O
Molecular Weight: 152.23
2. Physical and Chemical Properties
Physical Properties
- Appearance: Colorless transparent oily liquid
- Odor: Fresh herbaceous, mint-like natural essential oil aroma
- Solubility: Insoluble in water; miscible with ethanol, methanol, propylene glycol, diethyl ether, vegetable oils and hydrocarbon solvents
- Boiling Point: 92–94 °C (10 mmHg)
- Specific Rotation: [α]?2? +60° ~ +68° (neat liquid)
- Density: 0.932–0.938 g/cm3 (20 °C)
- Refractive Index: 1.478–1.484 (20 °C)
- Hygroscopicity: Non-hygroscopic
Chemical Properties
- Molecular Structure: Monocyclic monoterpene alcohol; cyclohexene skeleton bearing one hydroxyl group, internal double bond and isopropenyl side chain, single chiral carbon at C1 and C4 with defined (1S,4R) stereoconfiguration
- Hydroxyl Reactivity: Undergoes esterification, etherification, dehydration and oxidation reactions; dehydration generates diene terpenes
- Double Bond Activity: Two carbon-carbon unsaturated bonds can participate in addition, hydrogenation and epoxidation reactions
- Thermal Stability: Stable under normal temperature; prolonged heating triggers dehydration and oxidation to form yellow oxidized impurities
- Photostability: Sensitive to strong UV light; long-term illumination causes color deepening and aroma deterioration
- Compatibility: Compatible with all fragrance raw materials, cosmetic oils and organic solvents; incompatible with strong oxidants, concentrated mineral acids and alkali metals
3. Main Application Fields
1. Fragrance & Flavor Raw Material (Core Application)
- Natural mint/herbaceous fragrance ingredient for perfume, body care essence, soap and detergent flavors
- Modifier for citrus, herbal and woody aroma formulas to enhance fresh green top notes
2. Cosmetic Active Intermediate
- Synthetic precursor for menthol, mint ester derivatives and skincare terpene actives
- Fragrance component in facial toner, body lotion and oral care products
3. Natural Terpene Synthetic Building Block
Chiral monoterpene starting material for asymmetric synthesis of pharmaceutical and agrochemical terpene derivatives
4. Analytical Reference Standard
GC reference standard for chiral separation and identification of menthadienol isomers in plant essential oil testing
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 22972-51-6 |
| Molecular Formula | C10H16O |
| Molecular Weight | 152.23 |
| Appearance | Colorless clear oily liquid |
| GC Purity | Fragrance Grade ≥98.0%; Chiral Reference Grade ≥99.5% |
| Optical Rotation | [α]?2? +60° ~ +68° |
| Water Content (KF) | ≤0.10% |
| Refractive Index (20 °C) | 1.478–1.484 |
| Heavy Metals (Pb) | ≤10 ppm |
| Packaging | 25L / 200L sealed amber steel drum |
| Storage Condition | Hermetic cool dark warehouse below 25 °C; segregated from oxidants |
| Transportation Requirement | Flammable terpene liquid, leak-proof light-resistant sealed packaging |
| Shelf Life | 24 months under intact nitrogen-filled sealed packaging |
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