China Factory Direct
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| CAS number | 7785-26-4 |
| Product name | (1S)-(-)-alpha-Pinene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Fragrance & Flavor | Natural pine-woody odorant used in formulating household and food flavorings | Direct addition or use as a starting material for synthesizing other fragrance compounds (e.g., linalool, citronellol) |
| Pharmaceuticals | Intermediate for synthesizing active pharmaceutical ingredients, such as vitamin E and taxane derivatives | Oxidation, isomerization, epoxidation, and other organic synthesis reactions to produce high-value pharmaceutical intermediates |
| Pesticides | Synthesis of botanical pesticides or repellents | Chemical modification to generate bioactive derivatives, such as pinene-based esters |
| Solvents & Cleaners | Eco-friendly natural solvent for industrial cleaning or paint thinning | Direct use or blending with other terpenes, leveraging its volatility and solvency |
| Polymers & Materials | Monomer or modifier for producing bio-based resins and adhesives | Incorporation into polymer synthesis via free-radical or ring-opening polymerization |
| Fine Chemicals | Synthesis of fine chemicals including camphor, borneol, and pinane | Multi-step catalytic hydrogenation, isomerization, and oxidation reactions |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (purity) | Gas Chromatography (GC) | Quantitative separation and detection of alpha-pinene isomers using a capillary column and flame ionization detector. |
| Specific Optical Rotation | Polarimetry | Measurement of the angle of rotation of plane-polarized light caused by chiral left-handed alpha-pinene molecules in solution. |
| Refractive Index | Refractometry | Determination of refractive index at 20 C using a calibrated Abbe refractometer based on Snell's law. |
| Density | Pycnometry | Measurement of mass per unit volume at 20 C using a calibrated pycnometer and analytical balance. |
| Acid Value | Acid-Base Titration | Neutralization of free acids with standardized potassium hydroxide solution using phenolphthalein indicator. |
| Peroxide Value | Iodometric Titration | Oxidation of potassium iodide by peroxides to liberate iodine, titrated with standardized sodium thiosulfate. |
| Water Content | Karl Fischer Titration | Coulometric or volumetric titration based on the stoichiometric reaction of iodine with water in pyridine-methanol medium. |
| Residue on Evaporation | Gravimetric Analysis | Evaporation of a weighed sample at 105 C followed by weighing of non-volatile residue. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of lead after wet digestion and atomization in an air-acetylene flame. |
| Non-Volatile Matter | Gravimetric Analysis | Filtration of sample through pre-weighed membrane filter, drying, and weighing of retained residue. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Comparison of sample color against platinum-cobalt standard solutions or measurement of absorbance at 430 nm. |
| Aldehyde Content | Hydroxylamine Hydrochloride Titration | Derivatization of aldehydes to oximes followed by back-titration of unreacted hydroxylamine. |
| Test Item | Specification |
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| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Optical Rotation | -39.0 to -52.0 deg (c=10, in ethanol) |
| Refractive Index (n20/D) | 1.4650 to 1.4670 |
| Relative Density (20°C/25°C) | 0.855 to 0.865 g/cm³ |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Odor | Characteristic turpentine-like odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.