3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 7545-50-8 |
| Product name | 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
| Industry | Application | Process |
|---|---|---|
| Polymers | Monomer for high-temperature-resistant polyimide and polysulfone resins | Condensation polymerization with dianhydrides (e.g., pyromellitic dianhydride) or dihalides (e.g., 4,4'-dichlorodiphenyl sulfone) to produce high-performance engineering plastics |
| Pharmaceutical Intermediates | Structural building block for antitumor agents and antimicrobial compounds | Construction of sulfone-containing heterocyclic compounds bearing amino/hydroxy groups via diazotization, coupling, or cyclization reactions |
| Dye Industry | Key intermediate for azo and reactive dyes | Coupling with diazo components, or sulfonation/chlorination followed by introduction of reactive groups |
Manufacturing Quality Control of 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 254 nm, calibrated against certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration with iodine reagent to determine water content based on stoichiometric reaction. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C in a muffle furnace and weighing residual inorganic ash. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification after acid digestion, using plasma excitation and optical emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride ions in aqueous extract. |
| Sulfate Impurity | Ion Chromatography | Separation and conductivity detection of sulfate ions in aqueous extract. |
| Iron Content | AAS | Atomic absorption spectroscopy after acid digestion and air-acetylene flame atomization. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of visible particulates or discoloration under controlled lighting. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid using calibrated capillary method. |
| Organic Volatile Impurities | GC-FID | Detection and quantification of residual solvents via gas chromatography with flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to calculate size distribution of dry powder. |
| pH of Aqueous Suspension | pH Meter | Measurement of pH in a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode. |
Technical Specifications of 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 178–182°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
|
|
Download COA of 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
Safety Information of 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
Industrial 3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply