China Factory Direct
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| CAS number | 38464-04-9 |
| Product name | 3,4-Diethoxyphenylacetic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent Grade |
| Packaging | 25KG/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 |
|---|---|---|
| Pharmaceutical Synthesis | Synthesis of specific drug intermediates | Prepared via organic synthesis reactions, including esterification and reduction |
| Chemical Reagents | Used in laboratory research or analytical applications | Produced via chemical synthesis for subsequent reactions or analytical testing |
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Using a reverse-phase C18 column with methanol/water or acetonitrile/buffer salt as the mobile phase, and a UV detector (e.g., 220 nm or 254 nm) to quantify the main component. The content is calculated using external standard method or area normalization method. |
| Related Substances (Impurities) | HPLC Method (Gradient Elution) | Use gradient elution to separate the main peak from impurity peaks. Impurity types and limits are assessed based on relative retention time and peak area, in accordance with pharmacopoeia or enterprise standards. |
| Melting Point | Capillary Melting Point Determination | Dry sample is placed in a capillary tube and placed in a melting point apparatus. The temperature range from initial melting to complete melting is observed to determine the purity and crystalline consistency of the compound. |
| Dried Loss | Drying Method (105°C to Constant Weight) | Weigh the sample into a pre-constant-weight weighing bottle and dry it at 105°C in an oven until constant weight is achieved. Calculate the percentage of mass loss to evaluate the moisture and volatile matter content. |
| Residue on Ignition | High-Temperature Ashing Method | The sample is carbonized in a crucible and then incinerated at 600–800°C in a muffle furnace until constant weight is reached. The residue is weighed to assess the amount of inorganic impurities or residual metal catalysts. |
| Heavy Metals | Thioacetamide Method or ICP-MS | Perform limit testing using the thioacetamide colorimetric method from the Chinese Pharmacopoeia, or use Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to precisely determine the content of elements such as lead, arsenic, and cadmium. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Based on ICH Q3C guidelines, use headspace sampling GC-FID or GC-MS to quantitatively analyze organic solvents possibly remaining from the synthesis process (e.g., ethanol, ethyl acetate, toluene, etc.). |
| pH Value (in Solution) | pH Meter Measurement | Prepare a certain concentration aqueous solution of the sample (e.g., 1%), and measure its acidity or alkalinity using a calibrated pH meter, reflecting the free acid state and potential influence of salts. |
| Appearance | Visual Inspection and Color Comparison | Observe the solid's color (usually white or off-white crystals), odor, solubility, and other physical properties. Compare with reference standards if necessary. |
| Specific Rotation (if chiral) | Polarimeter Measurement | If the molecule contains a chiral center and optical purity needs to be controlled, prepare a solution of a certain concentration and measure the specific rotation using a polarimeter to evaluate enantiomeric purity. |
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 112–116°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.