N,N'-Diphenylbenzidine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 531-91-9 |
| Product name | N,N'-Diphenylbenzidine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic GradeReagent 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 N,N'-Diphenylbenzidine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk N,N'-Diphenylbenzidine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of N,N'-Diphenylbenzidine
| Industry | Application | Process |
|---|---|---|
| Rubber Industry | Antioxidant for rubber, retarding aging | Added during compounding |
| Dye Industry | Dye intermediate for azo dye synthesis | Diazotization and coupling reactions |
| Polymers | Antioxidant to enhance polymer stability | Incorporated during blending or polymerization |
| Electronic Materials | Organic optoelectronic material (e.g., hole-transport layer in OLEDs) | Vacuum thermal evaporation or solution processing |
| Chemical Analysis | Colorimetric reagent for metal ion detection (e.g., copper, iron) | Colorimetric or fluorometric analysis |
Manufacturing Quality Control of N,N'-Diphenylbenzidine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via reaction of iodine with sulfur dioxide in the presence of water and base. |
| Residue on Ignition | Gravimetric Analysis | Determination of non-volatile inorganic impurities by high-temperature ashing followed by weighing of residual ash. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of trace metals after acid digestion, based on element-specific atomic emission intensities. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement by observing the temperature range at which solid-to-liquid phase change occurs under controlled heating. |
| Organic Impurities (Related Substances) | HPLC-UV | Separation and detection of structurally related compounds using gradient elution and UV absorbance relative to main peak. |
| Chloride Content | Potentiometric Titration with AgNO3 | Titration using silver nitrate solution with silver indicator electrode to detect endpoint based on potential change during AgCl precipitation. |
| Bulk Density | ASTM D1895 Method A | Measurement of mass per unit volume of freely settled powder in a calibrated cylinder under standardized conditions. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity patterns to determine size distribution of suspended or dry powder particles. |
| pH of Aqueous Slurry | pH Meter | Measurement of hydrogen ion activity in a defined suspension of sample in distilled water using a calibrated glass electrode system. |
Technical Specifications of N,N'-Diphenylbenzidine
| Test Item | Specification |
|---|---|
| Appearance | Green solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 120–124°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 N,N'-Diphenylbenzidine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of N,N'-Diphenylbenzidine
Packaging of N,N'-Diphenylbenzidine
Industrial N,N'-Diphenylbenzidine 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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