Overview
L-Alpha-Pinene (CAS 7785-26-4 ), also known as (-)-α-pinene, is the levorotatory enantiomer of alpha-pinene, derived primarily from turpentine fractions of coniferous trees. It functions as a bio-based solvent and fragrance ingredient across industrial and consumer product manufacturing.
In coatings and printing inks, it acts as a renewable solvent carrier that supports resin dissolution and controlled evaporation profiles suited to high-speed production. Adhesive and sealant formulators use it as a reactive diluent and terpene resin precursor.
Its specific optical activity matters for consistent polymer performance in specialized industrial applications. In flavor and fragrance work, it contributes a fresh, piney, coniferous character to fine fragrances, household products, and food flavoring systems.
The compound is assigned FEMA 2902 and is widely utilized in the food industry. Personal care manufacturers incorporate it into aerosol sprays, shaving preparations, and scented cosmetics where a natural-origin terpene solvent is preferred.
This material is often selected over petrochemical alternatives to meet sustainability goals. L-Alpha-Pinene is supplied as a clear, mobile liquid in drum and IBC quantities for large-scale industrial use and distribution.
It is available in fragrance-grade and technical-grade specifications, with high-purity optical isomer grades offered for applications where enantiomeric excess is a formulation requirement. Food-grade material conforming to FCC standards is also commercially available.
The product meets rigorous quality benchmarks to ensure stability and performance across diverse sectors. Our supply chain ensures that the material maintains its chemical integrity from the point of distillation to final delivery.
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Physical Properties
| Melting Point | -61 °C |
| Boiling Point | 157 °C |
| Density | 0.849595 g/cm³ @ Temp: 30.00 °C |
| Flash Point | 90 °F |
| Appearance | clear colourless liquid |
| Color | Clear colorless |
| Odor | at 10.00 % in dipropylene glycol. sharp warm resinous fresh pine |
| Form | Liquid |
| Water Solubility | INSOLUBLE |
| Vapor Pressure | ~3 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.466 |
| Log P | 4.48 at 37℃ |
Safety & Handling
Danger GHS02 GHS07 GHS08 GHS09 Hazard Statements H226 Flammable liquid and vapor H302 Harmful if swallowed H304 May be fatal if swallowed and enters airways H315 Causes skin irritation H317 May cause an allergic skin reaction H373 May causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P331 Do NOT induce vomiting. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P235 Store in a well-ventilated place. Keep cool. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
Trade & Regulatory
| HS Code | 29021910 |
| UN Number | 2368 |
| ADR Class | 3 |
| Packing Group | III |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 1 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 7785-26-4
- EC Number
- 232-077-3
- Mol. Weight
- 136.23
- HS Code
- 29021910
- Category
- Solvents