1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 81190-89-8 |
| Product name | 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeReagent 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) |
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Documents We Provide for 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate for synthesizing anticancer and anti-inflammatory drugs | Used in organic synthesis and coupling reactions |
| Agrochemicals | Active ingredient in insecticides and fungicides | Applied in halogenation and esterification reactions |
| Materials Science | Precursor for functional polymer materials or ligands | Employed in polymerization and functional group modification |
| Research | Organic synthesis reagent or model compound for structural modification | Used in laboratory-scale synthesis |
Manufacturing Quality Control of 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 220-254 nm. |
| Related Substances | HPLC-UV | Separation and detection of impurities using gradient HPLC with UV detection; identification and quantification relative to main peak. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify volatile organic solvents based on retention time and peak area. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine generation in pyridine/methanol medium to determine trace water content. |
| Heavy Metals | ICP-MS | Inductively coupled plasma mass spectrometry for simultaneous quantification of toxic elements (e.g., Pb, Cd, Hg, As) at sub-ppb levels. |
| Chloride Impurity | Ion Chromatography | Separation of anions on an ion-exchange column with conductivity detection; chloride quantified via calibration curve. |
| Residue on Ignition | Gravimetric Analysis | Heating sample at 700-800 C to constant weight; residue measured as inorganic ash content. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed visually or automatically as the temperature range over which solid-to-liquid phase change occurs. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light by chiral molecules in solution at specified concentration and wavelength (e.g., 589 nm). |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity patterns to calculate particle size distribution in dry or dispersed state. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Electrode-based measurement of hydrogen ion activity in a defined suspension (e.g., 1% w/v in water). |
| Bulk Density | Tap Density Tester | Determination of mass per unit volume after standardized tapping of a powder sample in a graduated cylinder. |
Technical Specifications of 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (LC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 112–116 °C |
| Identification (NMR) | Conforms to reference spectrum |
| Heavy Metals | <=20 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester
Safety Information of 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester
Industrial 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester Procurement FAQ
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.
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