China Factory Direct
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| CAS number | 76205-19-1 |
| Product name | 1-(4-CHLOROPHENYL)-3-HYDROXY-1H-PYRAZOLE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical 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 Intermediates | Used in the synthesis of precursors for anti-inflammatory, analgesic, or antitumor drugs | Employed as a pyrazolone-based building block in multistep organic synthesis; target molecular frameworks are typically constructed via acylation, alkylation, or condensation reactions |
| Agrochemical Intermediates | Used in the synthesis of pyrazole-containing insecticides or herbicides | Active structural units are introduced via functional group transformations—such as nucleophilic substitution involving chloroaryl substrates—to build high-efficacy agrochemicals |
| Organic Synthesis Reagents | Applied as a heterocyclic building block in drug and functional material development | Leverages its enol–keto tautomerism to participate in Michael additions, cycloadditions, and other reactions for constructing complex heterocyclic systems |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification via reverse-phase HPLC with UV detection at 254 nm, using external standard calibration. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC with diode-array detection and comparison to reference standards. |
| Residual Solvents | GC-FID | Detection and quantification of volatile organic solvents by gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on the reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element determination after acid digestion, using inductively coupled plasma optical emission spectrometry. |
| Chloride Impurity | Ion Chromatography | Quantitative analysis of chloride ions using suppressed conductivity detection after anion exchange separation. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, following pharmacopeial guidelines. |
| Loss on Drying | Gravimetric (105 C oven) | Mass loss measured after drying sample at 105 C for 2 hours under controlled atmospheric conditions. |
| Residue on Ignition | Sulfated Ash Test | Measurement of non-volatile inorganic residue after ignition at 600-700 C following sulfuric acid treatment. |
| Particle Size Distribution | Laser Diffraction | Analysis of particle size based on angular variation in laser light scattering intensity. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light induced by chiral molecules in solution. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Determination of hydrogen ion activity in a defined suspension using calibrated glass electrode system. |
| Test Item | Specification |
|---|---|
| Appearance | Orange solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 148–152°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 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.