China Factory Direct
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| CAS number | 2471-70-7 |
| Product name | 6-METHOXY-2-NAPHTHOIC ACID |
| 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 |
|---|---|---|
| Pharmaceuticals | Key intermediate for synthesizing the nonsteroidal anti-inflammatory drug (NSAID) naproxen and sodium naproxen | Constructs the naproxen scaffold via condensation, reduction, carbonylation, and related chemical steps |
| Dyes | Intermediate for synthesizing functional dyes and pigments | Serves as a feedstock in anthraquinone- or azo-based dye synthesis |
| Chemicals | Organic synthesis raw material for producing other fine chemicals | Derivatives prepared via esterification, acid chloride formation, and related reactions |
| Test Item | Common Testing Methods | Method Overview |
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| Appearance | Visual Inspection | Observe the color, state, and visible impurities of the sample under natural light or standard illumination. |
| Identification | Infrared Spectroscopy (IR) | Compare the sample with a reference spectrum, identifying structural consistency through characteristic absorption peaks (e.g., carboxyl, aromatic ring, methoxy groups). |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column with a UV detector (e.g., 254 nm), employing a gradient or isocratic elution of water and organic solvent (e.g., methanol/acetonitrile) to quantitatively determine the main component's content. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Same as above, using retention time to identify and quantify possible synthetic intermediates or degradation products. Total impurities are generally required to be ≤0.5%. |
| Melting Point | Melting Point Determination (Capillary Method) | Determine the temperature range from initial melting to complete melting using a melting point apparatus, used to assess purity and material properties. The literature value is approximately 198–200°C. |
| Drying Loss | Thermogravimetric Analysis (TGA) or Oven Method | Dry the sample at a specified temperature (e.g., 105°C) until constant weight, calculate the loss in weight to evaluate moisture and volatile impurity content, typically ≤0.5%. |
| Residue on Ignition (Sulfated Ash) | Sulfated Ash Method | After high-temperature ignition, add sulfuric acid to the sample and weigh the residue, assessing inorganic impurity content. Generally requires ≤0.1%. |
| Heavy Metals | Thioacetamide Method (Pharmacopoeia Method) | Under weakly acidic conditions, heavy metals react with thioacetamide to form colored sulfides, which are measured by colorimetry. The limit is usually ≤20 ppm. |
| Chlorides | Silver Nitrate Turbidimetric Method | Add silver nitrate to the sample solution to form silver chloride turbidity, comparing it with a standard chloride solution to control inorganic halogen impurities. |
| Moisture | Karl Fischer Titration | Use an electrochemical titration principle to accurately determine the water content in the sample, suitable for low-moisture samples, providing more accurate results. |
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 147–151°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| 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 | |
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.