meso-1,2-Diphenyl-1,2-ethanediol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 579-43-1 |
| Product name | meso-1,2-Diphenyl-1,2-ethanediol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty 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 meso-1,2-Diphenyl-1,2-ethanediol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk meso-1,2-Diphenyl-1,2-ethanediol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of meso-1,2-Diphenyl-1,2-ethanediol
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Used as chiral ligands or catalyst precursors for synthesizing chiral pharmaceuticals and asymmetric catalytic reactions | Applied as chiral resolution substrates or chiral auxiliaries in asymmetric oxidation, reduction, or cyclization reactions |
| Organic Synthesis | Preparation of chiral diphenylethane derivatives and stereoselective building blocks | Subjected to selective monoprotection, derivatization, or conversion to sulfonates/halides followed by nucleophilic substitution |
| Materials Science | Structural unit for liquid crystal materials or chiral functional materials | Modified via esterification, etherification, or polymerization to incorporate a rigid chiral backbone, enabling control over phase transition temperature and optical activity |
Manufacturing Quality Control of meso-1,2-Diphenyl-1,2-ethanediol
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination using reverse-phase HPLC and UV absorbance at 254 nm relative to a certified reference standard. |
| Enantiomeric Purity | Chiral HPLC | Separation on a chiral stationary phase followed by UV detection to quantify meso form versus racemate or enantiomeric impurities. |
| Water Content | Karl Fischer titration | Electrochemical titration using iodine generated in situ to quantify water based on stoichiometric reaction with Karl Fischer reagent. |
| Residue on Ignition | Gravimetric analysis | Heating sample at 700-800 C to constant weight and measuring non-volatile inorganic residue as percentage of initial mass. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and other regulated metals after acid digestion and plasma excitation. |
| Chloride Impurity | Ion chromatography | Separation of chloride anions on anion-exchange column with conductivity detection and external calibration. |
| Sulfate Impurity | Ion chromatography | Separation of sulfate anions on anion-exchange column with conductivity detection and external calibration. |
| Related Substances | HPLC with gradient UV detection | Identification and quantification of structurally related impurities (e.g., benzil, benzoin, deoxy compounds) using gradient elution and UV detection. |
| Melting Point | Capillary melting point apparatus | Determination of temperature range over which solid transitions to liquid, indicating purity and identity via sharpness and agreement with literature value. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light at 589 nm; meso form shows zero rotation due to internal compensation. |
| Loss on Drying | Thermogravimetric analysis (TGA) | Mass loss measured under controlled heating (105 C, 2 h) to determine volatile content including solvents and moisture. |
| Organic Volatile Impurities (Residual Solvents) | GC-FID | Headspace GC separation followed by flame ionization detection for common solvents (e.g., ethanol, acetone, ethyl acetate). |
Technical Specifications of meso-1,2-Diphenyl-1,2-ethanediol
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 134–138 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Optical Rotation | [α]D²⁰ = -0.5° to +0.5° (c=1, in methanol) |
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 meso-1,2-Diphenyl-1,2-ethanediol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of meso-1,2-Diphenyl-1,2-ethanediol
Safety Information of meso-1,2-Diphenyl-1,2-ethanediol
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of meso-1,2-Diphenyl-1,2-ethanediol
Industrial meso-1,2-Diphenyl-1,2-ethanediol 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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