(S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 75640-87-8 |
| Product name | (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeReagent GradeIndustrial Grade |
| Packaging | 25KG/bag |
| 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)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Chiral ligands | Used as chiral catalysts in asymmetric synthesis, including asymmetric hydrogenation and oxidation reactions |
| Chemical synthesis | Organic synthesis intermediates | Serve as precursors for constructing chiral compounds, participating in coupling reactions and asymmetric catalytic reactions |
| Materials science | Functional material preparation | Applied in the synthesis of chiral materials, such as chiral liquid crystals and chiral polymers |
| Research | Chiral recognition and separation studies | Employed as model compounds to investigate chiral recognition mechanisms and chiral separation technologies |
| Catalysis | Asymmetric catalysis | Act as chiral ligands to form metal complexes that catalyze asymmetric synthesis reactions |
Manufacturing Quality Control of (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with Chiral Column | Separation and quantification based on enantioselective retention on a chiral stationary phase using UV detection. |
| Enantiomeric Excess (ee) | Chiral HPLC | Comparison of peak areas of (S)- and (R)-enantiomers to calculate excess of the desired (S)-isomer. |
| Residual Solvents | GC-FID | Volatile organic solvents are separated by gas chromatography and detected by flame ionization. |
| Water Content | Karl Fischer Titration | Coulometric or volumetric titration where iodine reacts stoichiometrically with water in a controlled electrochemical or chemical system. |
| Heavy Metals | ICP-MS | Quantification of trace metal impurities after acid digestion, based on mass-to-charge ratio detection. |
| Chloride Impurity | Ion Chromatography | Separation of chloride anions on an ion-exchange column with suppressed conductivity detection. |
| Sulfated Ash | Gravimetric Analysis | Sample incineration at 750 C followed by sulfuric acid treatment and weighing of residual inorganic ash. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed as solid-to-liquid phase change under controlled heating rate. |
| Optical Rotation | [a]D Measurement | Quantification of specific rotation using sodium D-line light in a polarimeter, indicating chiral purity and concentration. |
| Related Substances | HPLC with UV Detection | Separation and detection of structurally similar impurities using reversed-phase chromatography and UV absorbance. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine size distribution of solid particles in suspension. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Electrochemical measurement of hydrogen ion activity in a saturated aqueous slurry using calibrated pH electrode. |
Technical Specifications of (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS); >=99% ee |
| Optical Rotation | -52.0° to -54.0°, c = 1 in chloroform |
| Melting Point | 238°C to 242°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
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)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene
Safety Information of (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene
| Pictograms |   |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene
Industrial (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene 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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