China Factory Direct
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| CAS number | 52664-35-4 |
| Product name | TRIS-(4-AMINOPHENYL)THIOPHOSPHATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 |
|---|---|---|
| Photographic industry | Black-and-white developer | Used as an antioxidant in color developers or as a developing agent in black-and-white developer solutions, leveraging its reducing property to convert silver ions into metallic silver. |
| Pharmaceutical industry | Pharmaceutical intermediate | Employed in the synthesis of antipyretic analgesics (e.g., paracetamol/acetaminophen) derivatives or as a raw material for the production of specific sulfonamide drugs. |
| Chemical synthesis | Chemical reagent | Applied in laboratory-scale organic synthesis reactions as a reducing agent or in research on sulfur- and phosphorus-containing compound synthesis. |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 280 nm, calibrated against certified reference standard. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC with diode-array detection and comparison to reference standards or threshold-based reporting. |
| Residual Solvents | GC-FID | Detection and quantification of volatile organic solvents (e.g., methanol, acetone) by gas chromatography with flame ionization detection. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine water content based on stoichiometric reaction. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Multi-element quantification after acid digestion using inductively coupled plasma mass spectrometry for ultra-trace metal analysis. |
| Sulfur Content | Oxidative Combustion followed by IC | Total sulfur determined by high-temperature combustion to SO2, followed by ion chromatographic detection. |
| Phosphate Content | UV-Vis Spectrophotometry (Molybdenum Blue Method) | Phosphate reacts with ammonium molybdate under acidic conditions to form phosphomolybdenum blue complex measured at 880 nm. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determination using calibrated glass electrode in a 1% w/v aqueous suspension at 25 C. |
| Residue on Ignition | Gravimetric Analysis | Measurement of non-volatile inorganic residue after ignition at 600 C in a platinum crucible. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion using laser diffraction to determine D10, D50, D90 values. |
| Microbial Contamination | Membrane Filtration and Plate Count | Enumeration of aerobic microorganisms following filtration and incubation on soybean-casein digest agar. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light using sodium D-line (589 nm) at specified concentration and temperature. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow-brown solid |
| Purity | >=99.0% (HPLC) |
| Total Impurities | <=1.0% (HPLC) |
| Single Impurity | <=0.3% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 148–152°C |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=0.2% |
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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.