China Factory Direct
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| CAS number | 20780-54-5 |
| Product name | (S)-Styrene oxide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty GradeCosmetic GradeFood 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 |
|---|---|---|
| Pharmaceuticals | Synthesis of chiral drug intermediates, such as β-blockers, antifungals, and antidepressants | Used as a chiral building block to introduce chiral hydroxyl functionality via nucleophilic ring-opening |
| Pesticides | Synthesis of chiral insecticide and fungicide intermediates | Applied in epoxide ring-opening reactions to construct active molecules containing chiral alcohol moieties |
| Chemical Synthesis | Preparation of chiral alcohols, amines, ethers, and other organic intermediates | Subjected to regioselective and enantioselective ring-opening under Lewis acid or enzymatic catalysis |
| Fine Fragrances | Synthesis of chiral compounds with aromatic odor profiles | Employed as a precursor in oxidation, reduction, or rearrangement reactions to generate fragrance molecules |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against a certified reference standard using a polar capillary column. |
| Enantiomeric Excess (ee) | Chiral Gas Chromatography (cGC) or Chiral HPLC | Separation of (R)- and (S)-enantiomers on a chiral stationary phase; ee calculated from relative peak areas. |
| Water Content | Karl Fischer Titration (Coulometric mode) | Electrochemical titration where iodine is generated in situ to react stoichiometrically with water; endpoint detected amperometrically. |
| Residual Solvents (e.g., toluene, ethyl acetate) | Headspace Gas Chromatography (HS-GC) with FID | Volatile solvents partitioned into headspace above sample; quantified via calibration curves using internal standard. |
| Heavy Metals (Pb, Cd, Hg, As) | Inductively Coupled Plasma–Optical Emission Spectrometry (ICP-OES) | Sample digested in acid matrix; elemental emission intensities measured at characteristic wavelengths. |
| Acid Value | Potentiometric Titration with standardized NaOH | Neutralization of acidic impurities (e.g., residual epichlorohydrin hydrolysis products) monitored by pH electrode. |
| Optical Rotation | [α]D Measurement using Polarimeter | Specific rotation determined at 589 nm (Na D-line) in specified solvent/concentration; correlates with enantiopurity. |
| Color (APHA) | Visual or Instrumental Colorimetry (APHA scale) | Comparison of sample solution color intensity against platinum-cobalt standard solutions. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Sample ignited at 700–800 °C after sulfuric acid treatment; inorganic residue weighed as percentage of original sample. |
| Chloride Impurities | Ion Chromatography (IC) with conductivity detection | Separation of chloride anions on anion-exchange column; quantified by conductivity response relative to calibration standards. |
| Test Item | Specification |
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| Appearance | Light yellow clear liquid |
| Purity | >=98.0% (GC-MS), >=98% ee |
| Optical Rotation | -34.5° to -33.5° (c=1, in CHCl3) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.536 to 1.540 |
| Relative Density (20°C/25°C) | 1.075 to 1.085 g/cm³ |
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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.