4-Hydroxyphenylacetic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 156-38-7 |
| Product name | 4-Hydroxyphenylacetic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty 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) |
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Documents We Provide for 4-Hydroxyphenylacetic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Hydroxyphenylacetic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Hydroxyphenylacetic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of antibacterial agents | Used as an intermediate in synthesis reactions, such as the preparation of fluoroquinolone antibiotics |
| Cosmetics | Antioxidant and preservative | Added directly or incorporated into formulations following chemical modification |
| Fragrance industry | Fragrance compound manufacturing | Applied as a precursor in the synthesis of specific fragrance ingredients |
| Dye manufacturing | Dye production | Employed as one of the base raw materials for synthesizing certain acidic and disperse dyes |
| Pesticides | Fungicide | Participates in the synthesis of active pesticide ingredients |
| Plastic additives | Heat stabilizer | Used to enhance the thermal stability of polymer materials |
| Water treatment | Water quality conditioner | Applied to adjust pH and thereby improve water quality conditions |
Manufacturing Quality Control of 4-Hydroxyphenylacetic acid
| Test Item | Commonly Used Testing Method | Method Overview |
|---|---|---|
| Assay | High-Performance Liquid Chromatography (HPLC) | A reversed-phase C18 column and a UV detector (e.g., 275 nm) are used. Quantification is performed by external or internal standard method. This method offers high sensitivity and good reproducibility, and is suitable for assay analysis of active pharmaceutical ingredients and formulations. |
| Related Substances | HPLC with Gradient Elution | The gradient elution program is optimized to separate the main component from impurities, allowing detection of potential degradation products or synthetic by-products to ensure product purity meets pharmacopoeia or company standards. |
| Loss on Drying | Drying Method (105°C to Constant Weight) | The sample is dried at 105°C until constant weight, and the percentage weight loss is calculated. This test is used to control the content of moisture and volatile substances. |
| Residue on Ignition | High-Temperature Ashing Method (600–800°C) | The sample is incinerated at high temperature and the residual inorganic matter is weighed to evaluate the content of inorganic impurities (e.g., metal salts). |
| Heavy Metals | Thioacetamide Method / ICP-MS | The thioacetamide method is a general pharmacopoeia method involving a colorimetric reaction for semi-quantitative analysis; ICP-MS allows precise determination of multiple heavy metal elements (e.g., Pb, As, Cd). |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Headspace injection combined with capillary gas chromatography is used to detect organic solvents potentially remaining from the synthesis or purification process (e.g., methanol, ethyl acetate). |
| pH Value | pH Meter Method | A solution of defined concentration is prepared and the pH is measured directly using a calibrated pH meter. This reflects the acidity or alkalinity of the product, which may affect its stability and solubility. |
| Melting Point | Capillary Melting Point Method | The melting temperature range of the sample is determined using a digital melting point apparatus. It serves as one of the criteria for identification and purity assessment. |
| Specific Optical Rotation (if applicable) | Polarimetry | If the compound is chiral or contains optical isomers, specific optical rotation is measured to control stereochemical purity (this item is generally not applicable for p-hydroxyphenylacetic acid as it has no chiral center). |
| Appearance and Characteristics | Visual Observation and Physical Tests | Physical properties such as color, crystal form, odor, and solubility are described to provide an initial assessment of product quality. |
Technical Specifications of 4-Hydroxyphenylacetic acid
| Test Item | Specification |
|---|---|
| Appearance | White to light yellow crystalline powder |
| Purity | >=98.0% (HPLC) |
| Melting Point | 147°C to 151°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=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
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Download COA of 4-Hydroxyphenylacetic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Hydroxyphenylacetic acid
Packaging of 4-Hydroxyphenylacetic acid
Industrial 4-Hydroxyphenylacetic acid 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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