Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 133914-49-5 |
| Product name | |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/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
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of
| Industry | Application | Process |
|---|---|---|
| Display Technology | Liquid Crystal Display (LCD) Materials | Used as a negative dielectric anisotropy liquid crystal monomer, blended with other liquid crystal compounds to formulate mixed liquid crystal materials for tuning dielectric constant, birefringence, and threshold voltage. |
| Electronic Chemicals | TFT-LCD Panel Manufacturing | Applied in the one-drop fill (ODF) process to improve alignment order of liquid crystal molecules, thereby enhancing contrast ratio and response time of display devices. |
| Materials Science | Organic Light-Emitting Diode (OLED) Displays | Incorporated as a functional layer additive or component of hole-transport materials, deposited via solution processing or vacuum thermal evaporation. |
Manufacturing Quality Control of
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Related Substances | HPLC-UV/DAD | Separation and detection of structurally related impurities (e.g., isomers, synthesis intermediates, degradation products) using gradient HPLC with diode-array detection. |
| Residual Solvents | GC-FID | Identification and quantification of volatile organic solvents (e.g., toluene, heptane, IPA) by gas chromatography with flame ionization detection against calibrated standards. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration measuring water content via iodine generation and stoichiometric reaction with water in anhydrous methanol-based reagent. |
| Heavy Metals | ICP-MS | Multi-element trace metal quantification (e.g., Pb, Cd, Ni, Fe) after acid digestion, based on mass-to-charge ratio detection with isotopic resolution. |
| Chloride Content | Ion Chromatography (IC) | Separation and quantification of chloride ions using suppressed conductivity detection after aqueous extraction. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement by observing solid-to-liquid phase change under controlled heating rate per USP <741>. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Determination of inorganic residue after high-temperature incineration (700–800 °C) followed by precise weighing. |
| Optical Purity (Enantiomeric Excess) | Chiral HPLC | Separation of enantiomers on a chiral stationary phase and quantification of (trans,trans)-isomer excess relative to racemate or undesired stereoisomers. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder particle size distribution by measuring angular variation in laser light scattering intensity. |
| Bulk Density | ASTM D1895 Method A | Determination of mass per unit volume for free-flowing powder using a calibrated cylinder and tapping procedure. |
| Organic Volatile Impurities (e.g., aldehydes, peroxides) | GC-MS | Targeted screening and quantification of low-level reactive impurities using gas chromatography coupled with mass spectrometric detection. |
| Sulfated Ash | Gravimetric Analysis | Quantification of non-volatile inorganic residue after sulfuric acid treatment and high-temperature ignition, per Ph. Eur. 2.4.14. |
| Appearance (Color & Clarity) | Visual Inspection (in Solution) | Subjective assessment of solution clarity and color (e.g., in acetonitrile) against standardized references (e.g., APHA/Hazen scale). |
Technical Specifications of
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 124.0–127.0°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.3% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 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
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of
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Industrial 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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