China Factory Direct
|
|
| CAS number | 19750-02-8 |
| Product name | 5-AMINO-1H-PYRAZOLE-4-CARBOXYLIC ACID ETHYL ESTER |
| 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 |
|---|---|---|
| Pharmaceutical Chemicals | Pharmaceutical Intermediates | Serves as a key structural unit in the synthesis of quinolone antibacterial agents, such as enoxacin. |
| Pharmaceutical Chemicals | Active Pharmaceutical Ingredient (API) Synthesis | Participates in cyclization reactions of pyrazoloquinolone compounds to construct heterocyclic drug scaffolds. |
| Dyes and Pigments | Organic Pigment Intermediates | Used in the synthesis of high-performance organic pigments (e.g., pyrazoloquinolone pigments) to deliver specific hue characteristics. |
| Chemical Reagents | Organic Synthesis Reagents | Leverages its bifunctional amino and ester groups in amidation, hydrolysis, or coupling reactions to build complex molecules. |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by comparison of peak area against a certified reference standard using reversed-phase chromatography and UV detection. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using gradient HPLC with diode-array detection and spectral library matching. |
| Water Content | Karl Fischer Titration | Electrochemical titration with iodine reagent to determine water based on stoichiometric reaction with sulfur dioxide and pyridine. |
| Residue on Ignition | Gravimetric Analysis | Measurement of inorganic ash content after high-temperature incineration and weighing of residual material. |
| Heavy Metals | ICP-OES | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) by plasma excitation and atomic emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride anions using anion-exchange column and suppressed eluent. |
| Sulfated Ash | Gravimetric Analysis | Determination of non-volatile inorganic residue after ignition with sulfuric acid treatment and final weighing. |
| pH of Aqueous Solution | Potentiometric Measurement | Measurement of hydrogen ion activity using calibrated glass electrode and pH meter in a defined aqueous suspension. |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid transition temperature range using controlled heating and visual observation. |
| Organic Volatile Impurities | GC-FID | Detection and quantification of residual solvents via gas chromatography with flame ionization detection. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light induced by chiral molecules in solution at specified concentration and path length. |
| Bulk Density | Volumetric Method | Determination of mass per unit volume for free-flowing powder using standardized cylinder and tapping procedure. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 178–182°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
|
|
|
| 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.