China Factory Direct
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| CAS number | 19132-06-0 |
| Product name | (S,S)-2,3-Butanediol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeCosmetic GradeFood Grade |
| Packaging | 25L/drum |
| 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 |
|---|---|---|
| Chemical | Chiral synthesis intermediates | Used in asymmetric catalytic reactions |
| Pharmaceutical | Chiral auxiliaries for drug synthesis | Applied in chiral resolution or asymmetric reduction |
| Fine Fragrances | Intermediates for synthetic fragrance compounds | Applied in hydroxylation or esterification reactions |
| Pesticides | Chiral scaffolds for active pharmaceutical ingredients | Used in directed synthesis or biocatalysis |
| Materials Science | Monomers for chiral polymers | Applied in ring-opening polymerization or condensation polymerization |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID | Quantifies main component using retention time and peak area against calibrated standard. |
| Optical Rotation | [alpha]D Measurement | Measures rotation of plane-polarized light by chiral compound in solution at specified concentration and temperature. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in anhydrous medium. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after high-temperature ashing of sample. |
| Heavy Metals | ICP-OES | Quantifies trace metal impurities by atomic emission intensity of ionized elements in plasma. |
| Chloride Impurity | Ion Chromatography (IC) | Separates and quantifies chloride anions based on ion-exchange retention and conductivity detection. |
| Acidity (as Acetic Acid) | Acid-Base Titration | Neutralizes acidic impurities with standardized NaOH using phenolphthalein endpoint. |
| Color | APHA Color Scale Comparison | Compares sample color visually or spectrophotometrically to platinum-cobalt standard solutions. |
| Specific Gravity | Digital Density Meter | Determines density relative to water at 20 degrees C using oscillating U-tube principle. |
| Refractive Index | Refractometry | Measures bending of light through liquid sample at 20 degrees C to infer purity and concentration. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Detects and quantifies volatile organic solvents by GC analysis of equilibrated vapor phase. |
| Stereochemical Purity (diastereomeric excess) | Chiral Gas Chromatography | Separates (2S,3S) isomer from other diastereomers using chiral stationary phase and quantifies ratio. |
| Test Item | Specification |
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| Appearance | Colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Optical Rotation | +13.0° to +14.0° (c=10, in H2O) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.412 to 1.416 |
| Relative Density (20°C/25°C) | 0.998 to 1.004 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.