4,4''-DIAMINO-P-TERPHENYL Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 3365-85-3 |
| Product name | 4,4''-DIAMINO-P-TERPHENYL |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeReagent 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 4,4''-DIAMINO-P-TERPHENYL
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4''-DIAMINO-P-TERPHENYL Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4''-DIAMINO-P-TERPHENYL
| Industry | Application | Process Description |
|---|---|---|
| Chemicals | Organic synthesis intermediate | Used as a key intermediate in the synthesis of dyes, pigments, and pharmaceuticals |
| Materials Science | High-performance polymer synthesis | Applied in the synthesis of high-performance materials such as aromatic polyamides and polyurethanes |
| Coatings & Inks | Dye and pigment synthesis | Employed to synthesize dye molecules with specific structures, delivering superior coloration performance |
| Pharmaceuticals | Active pharmaceutical ingredient (API) synthesis | Served as a precursor in the synthesis of certain anti-inflammatory and antitumor drugs |
| Research | Chemical reaction studies | Utilized in mechanistic studies of novel coupling reactions, redox reactions, and related transformations |
Manufacturing Quality Control of 4,4''-DIAMINO-P-TERPHENYL
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities using gradient HPLC-UV; identification based on retention time matching and threshold limits per ICH Q3B. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration with iodine reagent to determine water content based on stoichiometric reaction with iodine and sulfur dioxide in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Heating sample at 700-800 C to constant weight; residue mass expressed as percentage of original sample. |
| Heavy Metals | ICP-OES | Multi-element quantitative analysis after acid digestion; detection based on characteristic atomic emission spectra intensities. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using silver indicator electrode; endpoint detected by potential jump due to AgCl precipitation. |
| Sulfated Ash | Gravimetric Analysis | Ignition after treatment with sulfuric acid to convert metals to sulfates; residue weighed after cooling in desiccator. |
| Melting Point | Capillary Melting Point Determination | Thermal analysis using calibrated capillary apparatus; recorded as temperature range at which solid-to-liquid phase transition occurs. |
| Organic Volatile Impurities | GC-FID | Separation by gas chromatography followed by flame ionization detection; quantified against internal standard or external calibration curve. |
| Iron Content | AAS | Atomic absorption spectroscopy after acid digestion; measurement of absorbance at 248.3 nm for Fe atom vapor. |
| Bulk Density | USP <616> Method I | Mass of material divided by its untapped volume in a standardized cylinder, measured under controlled conditions. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles in liquid medium to calculate size distribution based on Mie theory. |
Technical Specifications of 4,4''-DIAMINO-P-TERPHENYL
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 245–249 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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 4,4''-DIAMINO-P-TERPHENYL
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4''-DIAMINO-P-TERPHENYL
Packaging of 4,4''-DIAMINO-P-TERPHENYL
Industrial 4,4''-DIAMINO-P-TERPHENYL 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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