(S)-1,2-Butanediol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 73522-17-5 |
| Product name | (S)-1,2-Butanediol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial 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) |
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Documents We Provide for (S)-1,2-Butanediol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk (S)-1,2-Butanediol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of (S)-1,2-Butanediol
| Industry | Application | Process |
|---|---|---|
| Chemical | Chiral synthetic intermediate | Applied in asymmetric catalytic reactions |
| Pharmaceutical | Chiral auxiliary for drug synthesis | Applied in chiral resolution or asymmetric synthesis |
| Pesticide | Intermediate for chiral active pharmaceutical ingredients (APIs) in agrochemicals | Used to construct chiral centers |
| Materials | Optically pure polymer monomer | Applied in ring-opening polymerization or condensation polymerization |
| Fine Fragrances & Flavors | Chiral additive | Produced via chemical synthesis or biotransformation |
Manufacturing Quality Control of (S)-1,2-Butanediol
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID | Quantitative separation and detection based on volatility and retention time using a chiral or non-chiral column. |
| Enantiomeric Excess (ee) | Chiral Gas Chromatography (cGC) | Separation of (S)- and (R)-enantiomers on a chiral stationary phase; ee calculated from peak area ratio. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in anhydrous methanol/pyridine medium. |
| Acidity (as Acetic Acid) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Color | APHA Color Scale (Visual or Spectrophotometric) | Comparison of sample color against platinum-cobalt standard solutions or measurement of absorbance at 455 nm. |
| Specific Gravity | Digital Density Meter | Measurement of density relative to water at 20/20 degC using oscillating U-tube principle. |
| Refractive Index | Refractometry | Determination of light bending angle at air-sample interface using calibrated refractometer at 20 degC. |
| Residue on Evaporation | Gravimetric Analysis | Evaporation of known volume under controlled conditions followed by weighing of non-volatile residue. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after wet digestion, using hollow cathode lamp and flame/graphite furnace. |
| Chloride Content | Ion Chromatography (IC) | Separation and conductivity detection of chloride ions after aqueous extraction and filtration. |
| Non-Volatile Residue | Gravimetric Analysis | Evaporation of specified mass to dryness at 105 degC, followed by cooling and weighing of residue. |
| Odor | Sensory Evaluation | Qualitative assessment by trained personnel against specification for characteristic mild odor; absence of off-odors. |
Technical Specifications of (S)-1,2-Butanediol
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Optical Rotation | -18.0 to -15.0 deg (c=1, in CHCl3) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.426 to 1.432 |
| Relative Density (20°C/25°C) | 0.925 to 0.935 g/cm³ |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of (S)-1,2-Butanediol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of (S)-1,2-Butanediol
Packaging of (S)-1,2-Butanediol
Industrial (S)-1,2-Butanediol Procurement FAQ
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.
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