China Factory Direct
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| CAS number | 1492-30-4 |
| Product name | 4-NITROPHENYL PALMITATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 |
|---|---|---|
| Biochemistry/Pharmaceutical Research | Substrate for enzyme activity assays (detection of lipase and esterase activity) | Enzymatic hydrolysis assay |
| Biochemistry/Pharmaceutical Research | Determination of enzyme kinetic constants | Colorimetric or spectrophotometric analysis |
| Organic Synthesis | Chemical reagent for esterification reactions and related intermediate synthesis | Organic synthesis reaction |
| Chemical Analysis | Screening of lipase inhibitors | Enzyme inhibition assay |
| Test Item | Common Testing Method | Method Summary |
|---|---|---|
| Identification Test | Fourier Transform Infrared Spectroscopy (FT-IR) | By measuring the infrared absorption spectrum of the sample and comparing it with standard reference spectra, characteristic functional groups in the molecule (such as ester group, benzene ring, nitro group, etc.) can be confirmed, thus identifying ethyl palmitate p-nitrobenzoate. |
| Assay | High-Performance Liquid Chromatography (HPLC) | Using a reversed-phase C18 column with methanol-water or acetonitrile-water as mobile phase, detection by UV detector (typically at 310–400 nm wavelength), quantification via external or internal standard method to accurately determine the content of the main component. |
| Melting Point Determination | Capillary Melting Point Method | The sample is packed into a melting point capillary tube and heated gradually in a melting point apparatus. The initial and final melting temperatures are observed and recorded, then compared with the standard melting range (approximately 79–82 °C) to assess purity. |
| Loss on Drying | Thermogravimetric Analysis (TGA) or Ordinary Pressure Drying Method | Dry the sample at a specified temperature (e.g., 105 °C) until constant weight is achieved, and calculate the percentage of mass loss to control moisture and volatile impurities. |
| Sulfated Ash / Residue on Ignition | High-Temperature Ashing Method | The sample is carbonized and then ignited in a high-temperature furnace at 700–800 °C. The remaining inorganic residue is weighed to evaluate the level of inorganic impurities. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Using gradient or isocratic elution to separate the main peak from potential impurity peaks (e.g., unreacted starting materials, hydrolysis product p-nitrophenol, etc.). The total impurity and individual impurity levels are calculated using area normalization or correction factor methods. |
| pH Value (if prepared as solution) | pH Meter Method | Dissolve the sample in a aqueous-organic mixed solvent (e.g., water with a small amount of ethanol for solubility), and measure pH using a calibrated pH meter to indirectly assess the presence of acidic impurities (such as free palmitic acid or p-nitrophenol). |
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 54–58°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.