China Factory Direct
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| CAS number | 620-84-8 |
| Product name | 4-Methyldiphenylamine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeCosmetic GradeFood 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of antihistamine drugs | Used as an intermediate in constructing the drug molecule structure |
| Dyes | Synthesis of azo dyes | Applied in coupling reactions with aromatic nitro compounds |
| Pesticides | Synthesis of herbicides or insecticides | Used as an intermediate in synthesizing active pesticide ingredients |
| Fragrances | Synthesis of flavor and fragrance compounds | Applied in esterification, alkylation, and other reactions to generate odor-active compounds |
| Materials Science | Synthesis of polymeric materials | Used as a monomer or crosslinking agent in polymerization reactions |
| 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 relative to reference standards or spiked samples. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common solvents (e.g., toluene, methanol) based on calibrated response factors. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration using iodine generation in pyridine-free reagent; water reacts stoichiometrically with iodine and sulfur dioxide in methanol medium. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measured by observing solid-to-liquid phase change in a capillary tube under controlled heating rate. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity of sample against specified criteria (e.g., white to off-white crystalline powder). |
| Heavy Metals | ICP-OES | Multi-element quantification after acid digestion; detection based on characteristic atomic emission wavelengths in inductively coupled plasma. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anion using suppressed conductivity detection after elution with carbonate/bicarbonate buffer. |
| Sulfated Ash | Gravimetric Analysis | Sample incineration at 700-800 C followed by sulfuric acid treatment and final ignition; residue mass expressed as percentage of original sample. |
| pH of Aqueous Suspension | pH Meter | Measurement of pH in a defined suspension (e.g., 1% w/v in water) using calibrated glass electrode pH meter. |
| Bulk Density | Tap Density Tester | Determination of mass per unit volume after standardized tapping of a known mass in a graduated cylinder. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity patterns to calculate volume-based particle size distribution in dispersed dry or wet sample. |
| Test Item | Specification |
|---|---|
| Appearance | White to almost white crystalline powder |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 58.0–62.0°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.