1-[2-[2,3-difluoro-4-(trans-4-pentylcyclohexyl)phenyl]ethynyl]-4-ethoxy-2,3-difluoro- Benzene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 928208-51-9 |
| Product name | 1-[2-[2,3-difluoro-4-(trans-4-pentylcyclohexyl)phenyl]ethynyl]-4-ethoxy-2,3-difluoro- Benzene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 928208-51-9
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 928208-51-9 Supplier from China
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Industrial Applications of 928208-51-9
| Industry | Application | Process |
|---|---|---|
| Display Industry | Liquid Crystal Display (LCD) Materials | Serves as a monomeric component in TFT-LCD liquid crystal mixtures to adjust dielectric anisotropy, birefringence, and viscosity, thereby enhancing display performance |
| Electronic Chemicals | High-Performance Liquid Crystal Formulations | Blended with other liquid crystal compounds and chiral dopants to formulate liquid crystal compositions for TN, STN, or TFT modes |
Manufacturing Quality Control of 928208-51-9
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at optimized wavelength, comparing peak area to calibrated standard. |
| Related Substances (Impurities) | HPLC-UV/DAD or UPLC-MS | Separates and detects structurally related impurities (e.g., regioisomers, dehalogenated by-products) via gradient chromatography with UV or mass spectral identification. |
| Residual Solvents | GC-FID | Quantifies volatile organic solvents (e.g., toluene, THF, ethanol) using headspace GC with flame ionization detection against certified standards. |
| Water Content | Karl Fischer Titration (Coulometric) | Determines trace water by electrochemical titration where iodine is generated in situ and reacts stoichiometrically with water. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Measures trace heavy metal impurities after acid digestion by detecting element-specific isotopic masses with high sensitivity and multi-element capability. |
| Chloride Content | Ion Chromatography (IC) with Conductivity Detection | Separates and quantifies chloride ions using anion-exchange column and suppressed conductivity detection. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Measures non-volatile inorganic residue after controlled ashing at 500–600 °C, expressed as % w/w. |
| Optical Rotation | [α]D Measurement (Polarimetry) | Determines specific optical rotation using sodium D-line light to confirm chiral integrity of trans-4-pentylcyclohexyl moiety. |
| Melting Point | Capillary Melting Point Apparatus | Measures temperature range of solid-to-liquid transition to assess crystallinity and batch consistency. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry or wet dispersed sample to determine volumetric particle size distribution based on light scattering patterns. |
| Bulk Density | ASTM D1895 Method A (Tapped Density) | Measures mass per unit volume of powder under standardized tapping conditions to evaluate flow and handling properties. |
| Microbial Limits | Membrane Filtration + Culture Enumeration | Detects and enumerates aerobic microorganisms using membrane filtration followed by incubation on TSA and SDA media. |
| Elemental Composition (C, H, F) | Combustion Analysis (CHN/F Analyzer) | Determines carbon, hydrogen, and fluorine content via high-temperature combustion and selective gas detection (e.g., TCD for C/H, IR for F). |
Technical Specifications of 928208-51-9
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Melting Point | 112–116°C |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=20 ppm |
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 928208-51-9
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 928208-51-9
Packaging of 928208-51-9
Industrial 928208-51-9 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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