3-Hydroxydiphenylamine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 101-18-8 |
| Product name | 3-Hydroxydiphenylamine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial 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 3-Hydroxydiphenylamine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3-Hydroxydiphenylamine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3-Hydroxydiphenylamine
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Key intermediate for synthesizing azo and triarylmethane dyes; used in the production of acid, direct, and reactive dyes | Diazotization-coupling reaction, coupled with aromatic amines or phenolic compounds |
| Pharmaceutical Industry | Intermediate for synthesizing anti-inflammatory agents (e.g., oxyphenbutazone) and certain antimicrobial agents | Cyclization, oxidation, or substitution reactions; employed in heterocyclic compound synthesis |
| Rubber Industry | Intermediate for rubber antioxidants | Condensation with aldehydes to produce phenol-formaldehyde-type antioxidants, or sulfonation for incorporation into rubber protection systems |
Manufacturing Quality Control of 3-Hydroxydiphenylamine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination based on peak area comparison with a certified reference standard using reversed-phase chromatography and UV detection at ~254 nm. |
| Related Substances | HPLC-UV | Separation and quantification of structurally related impurities (e.g., aniline, m-phenylenediamine, azobenzene derivatives) using gradient elution and UV detection. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration with iodine generated in situ; measures water content based on stoichiometric reaction between iodine, sulfur dioxide, and water in methanol/pyridine medium. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Determination of non-volatile inorganic residue after controlled high-temperature ashing (700–800 °C) and subsequent weighing. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of trace metals (Pb, Cd, Hg, As, Cr) following acid digestion, based on element-specific atomic emission intensities. |
| Chloride Content | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column and conductivity detection after sample dissolution and filtration. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range over which solid-to-liquid phase transition occurs, indicating purity and identity via comparison to reference value (129–131 °C). |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles against defined specifications (e.g., white to off-white crystalline powder, free from visible specks or discoloration). |
Technical Specifications of 3-Hydroxydiphenylamine
| Test Item | Specification |
|---|---|
| Appearance | Brown solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 128–132°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 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 3-Hydroxydiphenylamine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 3-Hydroxydiphenylamine
Industrial 3-Hydroxydiphenylamine 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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