Ethyl 3-methyl-1H-pyrazole-5-carboxylate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1226862-09-4 |
| Product name | Ethyl 3-methyl-1H-pyrazole-5-carboxylate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty 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) |
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Documents We Provide for Ethyl 3-methyl-1H-pyrazole-5-carboxylate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Ethyl 3-methyl-1H-pyrazole-5-carboxylate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Ethyl 3-methyl-1H-pyrazole-5-carboxylate
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate for synthesizing JAK inhibitor drugs | Produced via acid-catalyzed esterification of 3-methyl-1H-pyrazole-5-carboxylic acid with ethanol; used in subsequent cyclization or substitution reactions to construct the drug molecule scaffold |
| Agrochemicals | Intermediate for synthesizing novel insecticides or fungicides | Serves as a nitrogen-containing heterocyclic building block in nucleophilic substitution or coupling reactions to construct biologically active pyrazole derivatives |
| Chemical Synthesis | Functionalized heterocyclic intermediate in organic synthesis | Used in coupling reactions—including Suzuki and Buchwald–Hartwig—with amines, alkyl halides, or metal catalysts to construct complex molecular architectures |
Manufacturing Quality Control of Ethyl 3-methyl-1H-pyrazole-5-carboxylate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at 210-230 nm based on peak area comparison against reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities using gradient HPLC with UV detection and relative response factors. |
| Residual Solvents | GC-FID | Measures residual ethyl acetate, ethanol, toluene, or DMF by gas chromatography with flame ionization detection using headspace sampling. |
| Water Content | Karl Fischer Titration | Determines trace water by coulometric or volumetric titration using iodine-based reagent in methanol-based solvent. |
| Heavy Metals | ICP-MS | Quantifies Pb, Cd, Hg, As, and other regulated metals at sub-ppb levels after acid digestion and isotopic detection. |
| Chloride Impurity | Ion Chromatography | Separates and quantifies chloride ions using suppressed conductivity detection after aqueous extraction. |
| Sulfated Ash | Gravimetric Analysis | Measures inorganic residue after controlled combustion at 700-800 C and weighing of residual ash. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary tube method per USP <741>. |
| Optical Rotation | Polarimetry | Measures specific rotation using sodium D-line light to assess chiral purity and absence of racemization. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry or wet dispersed sample to determine D10, D50, D90 values per ISO 13320. |
| pH of Aqueous Suspension | pH Meter | Measures pH of 1% w/v suspension in purified water using calibrated electrode and temperature compensation. |
| Microbial Contamination | Membrane Filtration | Detects aerobic microorganisms by filtration, membrane transfer to soybean-casein digest agar, and incubation per USP <61>. |
Technical Specifications of Ethyl 3-methyl-1H-pyrazole-5-carboxylate
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 128°C – 132°C |
| Identification (NMR) | Conforms to reference standard |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 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 Ethyl 3-methyl-1H-pyrazole-5-carboxylate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Ethyl 3-methyl-1H-pyrazole-5-carboxylate
Safety Information of Ethyl 3-methyl-1H-pyrazole-5-carboxylate
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of Ethyl 3-methyl-1H-pyrazole-5-carboxylate
Industrial Ethyl 3-methyl-1H-pyrazole-5-carboxylate 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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