2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6390-69-8 |
| Product name | 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeElectronic 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 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
| Industry | Application | Process |
|---|---|---|
| Chemical Intermediates | Synthesis of high-performance antioxidants and stabilizers | Serves as a key structural unit in condensation or oxidative coupling reactions to produce sterically hindered phenolic antioxidants (e.g., derivatives of Irganox 1076) |
| Materials Science | Thermal stabilizer for polymeric materials | Added during polyolefin (e.g., PP, PE) processing to inhibit thermal oxidative degradation via radical scavenging |
| Liquid Crystal Materials | Synthesis of liquid crystal monomers | Functions as a rigid biphenyl core structure; incorporated into nematic liquid crystal molecules through halogenation, coupling, and related steps |
| Organic Synthesis | Chiral ligand precursor | Modified asymmetrically to construct C2-symmetric chiral catalyst scaffolds for asymmetric oxidation reactions |
Manufacturing Quality Control of 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 280 nm, calibrated against certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities using gradient HPLC-UV; identification based on retention time comparison and peak area normalization. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify volatile organic solvents (e.g., toluene, THF, methanol) per ICH Q3C. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration with iodine-based reagent to determine water content based on stoichiometric reaction with water. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, Cr, Ni by inductively coupled plasma optical emission spectrometry after acid digestion. |
| Chloride Content | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column with suppressed conductivity detection. |
| Sulfated Ash | Gravimetric Analysis | Ignition of sample at 750 C followed by weighing of residual inorganic ash after sulfuric acid treatment. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, measured using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under controlled white light and against specified standards. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Measurement of mass loss upon heating to 105 C for 2 hours to determine volatile content excluding water. |
| pH of Aqueous Suspension | pH Meter | Measurement of pH in a 1% w/v suspension in purified water using calibrated pH electrode. |
| Particle Size Distribution | Laser Diffraction | Analysis of size distribution in dispersed dry powder using Mie scattering theory and laser diffraction instrument. |
Technical Specifications of 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 218–222°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
Safety Information of 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
Industrial 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl 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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