China Factory Direct
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| CAS number | 501-89-3 |
| Product name | 4-CARBOXYPHENYLACETIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial 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 |
|---|---|---|
| Plastics Industry | Intermediate for plasticizers, used in the production of phthalate plasticizers | Esterification |
| Coatings & Inks | Resin modifier to enhance film flexibility and substrate adhesion | Resin synthesis and modification |
| Pharmaceutical Industry | Intermediate in drug synthesis, used in the preparation of certain antibiotics and anti-inflammatory agents | Organic synthesis |
| Fragrance Industry | Used in the synthesis of fragrance compounds, such as diethyl phthalate | Esterification and condensation |
| Rubber Industry | Rubber additive to improve processing performance and aging resistance of rubber products | Mixing and vulcanization |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | Acid-Base Titration | Quantifies main component by neutralizing with standardized NaOH solution using phenolphthalein indicator. |
| Moisture Content | Karl Fischer Titration | Measures water content via stoichiometric reaction between water and iodine in methanol-pyridine medium. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Determines trace metal impurities by measuring absorbance of ground-state atoms in flame or graphite furnace. |
| Sulfated Ash | Gravimetric Analysis | Residue after combustion at 700-800 C is weighed to assess inorganic impurities. |
| Chloride Impurities | Potentiometric Titration | Quantifies chloride ions using silver nitrate titrant and silver/silver chloride reference electrode. |
| Iron Content | UV-Vis Spectrophotometry | Measures Fe2+ complex with 1,10-phenanthroline at 510 nm based on Beer-Lambert law. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid under controlled heating. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Compares sample color to platinum-cobalt standard solutions or measures absorbance at 455 nm. |
| Residue on Ignition | Gravimetric Analysis | Weighs non-volatile residue remaining after high-temperature ignition in muffle furnace. |
| Organic Volatile Impurities | Gas Chromatography (GC) | Separates and quantifies volatile organic impurities using capillary column and FID detection. |
| pH of Aqueous Solution | pH Meter | Measures hydrogen ion activity in saturated aqueous suspension using calibrated glass electrode. |
| Particle Size Distribution | Laser Diffraction | Analyzes scattered light intensity pattern from dispersed particles to determine size distribution. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 207–211°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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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.