4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 838-88-0 |
| Product name | 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE 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-3,3'-DIMETHYLDIPHENYLMETHANE
| Industry | Application | Process |
|---|---|---|
| Polyurethane | Used as an aromatic diamine chain extender for synthesizing high-performance polyurethane elastomers, coatings, and adhesives | Reacts with isocyanates to form polyurea or polyurethane structures, enhancing mechanical strength, heat resistance, and abrasion resistance |
| Rubber Industry | Acts as a rubber vulcanization accelerator or crosslinking aid | Participates in crosslinking reactions during vulcanization to improve physical properties and aging resistance of rubber products |
| Epoxy Resins | Used as an epoxy resin curing agent | Undergoes addition reaction with epoxy groups to form a crosslinked network, improving heat resistance and mechanical performance of the cured product |
| Dyes & Pigments | Serves as an organic synthesis intermediate for producing azo dyes and other functional pigments | Synthesizes dye molecules with specific structures via diazotization, coupling, and related reactions |
| High-Performance Composites | Used to formulate high-temperature-resistant, high-strength composite matrix resins | Acts as a monomer in polymerization to build polymer backbones featuring rigid biphenyl structures |
Manufacturing Quality Control of 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, calibrated against certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content based on iodine-sulfur dioxide reaction in methanol-based reagent. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed as solid-to-liquid phase change under controlled heating rate per USP <741>. |
| Residue on Ignition | Gravimetric Analysis | Mass of non-volatile inorganic residue after high-temperature ashing at 700-800 C. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of trace metals by plasma excitation and optical emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column and conductivity detection. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 followed by drying and weighing of the precipitate. |
| Related Substances | HPLC-DAD | Identification and quantification of structurally related impurities using diode-array detection and retention time matching. |
| Organic Volatile Impurities | GC-FID | Detection and quantification of residual solvents via gas chromatography with flame ionization detection. |
| Bulk Density | Tap Density Measurement | Mass per unit volume after standardized tapping of sample in a graduated cylinder per USP <616>. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine size distribution of dry powder. |
| pH of Aqueous Suspension | pH Meter | Measurement of hydrogen ion activity in a defined suspension (e.g., 1% w/v in water) using calibrated electrode. |
Technical Specifications of 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 124–128°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 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
Safety Information of 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
| Pictograms |    |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
Industrial 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE 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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