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HS Code |
334468 |
| Productname | 3-(4-Chlorophenyl)Pyrazole |
| Casnumber | 35047-35-7 |
| Molecularformula | C9H7ClN2 |
| Molecularweight | 178.62 |
| Appearance | White to off-white solid |
| Meltingpoint | 98-101°C |
| Boilingpoint | 357.7°C at 760 mmHg |
| Density | 1.23 g/cm³ |
| Solubility | Slightly soluble in water, soluble in organic solvents such as ethanol and DMSO |
| Smiles | c1cc(ccc1N2C=CN=C2)Cl |
| Inchi | InChI=1S/C9H7ClN2/c10-8-3-1-7(2-4-8)9-5-6-11-12-9/h1-6H |
As an accredited 3-(4-Chlorophenyl)Pyrazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle containing 25 grams of 3-(4-Chlorophenyl)pyrazole, sealed with a red cap, labeled with safety and hazard information. |
| Shipping | 3-(4-Chlorophenyl)pyrazole is shipped in tightly sealed containers to prevent contamination and moisture exposure. It is packed according to chemical safety regulations, labeled with hazard information, and accompanied by a safety data sheet (SDS). Transportation complies with local and international guidelines to ensure safe and compliant delivery. |
| Storage | 3-(4-Chlorophenyl)pyrazole should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and moisture. Keep the container tightly closed when not in use. Store separately from incompatible substances such as strong oxidizing agents. Use appropriate chemical storage cabinets, and ensure proper labeling. Always follow all relevant safety and regulatory guidelines for chemical storage. |
Applications of 3-(4-Chlorophenyl)Pyrazole in Industrial ManufacturingAs a specialized manufacturer of 3-(4-Chlorophenyl)Pyrazole, we support leading companies in the agrochemical and pharmaceutical sectors, enabling production of high-value finished chemicals through precisely controlled integration of this key intermediate. Our focus remains on industry-validated applications and cost-effective solutions in real-world industrial environments. 1. Synthesis of Pyrazole-Based HerbicidesPyrazole derivatives, particularly those featuring a chlorophenyl moiety, serve as vital intermediates in the manufacture of selective herbicides targeting grassy and broadleaf weeds in major food crop cultivation. Downstream agrochemical formulators leverage its reactivity and chemical compatibility to develop active ingredients that fit multiple crop protection regimes. Regulatory authorities evaluate these herbicides for residue, leaching, and toxicological impacts, necessitating strict quality oversight throughout synthesis and formulation. Industry compliance standards
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2. Intermediate in Anti-Inflammatory APIs Manufacturing3-(4-Chlorophenyl)pyrazole functions as a core building block for several nonsteroidal anti-inflammatory drug (NSAID) candidates. Pharmaceutical manufacturers use it in scalable synthetic routes to introduce pyrazole pharmacophores that exhibit COX inhibition. The precise integration of this intermediate in GMP-controlled environments supports consistent API purity, aligning with stringent pharmacopoeial and regulatory requirements for downstream oral or parenteral drug formulation. Industry compliance standards
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3. Building Block for Pyrazole-Containing InsecticidesThe advanced structure of the 3-(4-Chlorophenyl)pyrazole molecule enables downstream industrial partners to synthesize highly effective insecticide ingredients with defined target specificity and environmental fate. Its use in pyrazole-based pesticide active ingredient pathways allows formulating companies to design active molecules to comply with evolving residue, ecotoxicity, and regulatory benchmarks in both domestic and export markets, focusing on high-value specialty crops and horticulture protection. Industry compliance standards
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4. Starting Material for Development of Specialty DyestuffsThe chemical structure of 3-(4-Chlorophenyl)pyrazole offers reactive sites ideal for the synthesis of specialty pyrazole-based dye molecules used in industrial coloration processes, particularly for applications demanded by the automotive, fiber, and electronics industries. Dye manufacturers utilize this intermediate in multi-stage coupling and functionalization reactions, aiming to introduce high-performance chromophores that conform to safety and environmental dyeing standards. Industry compliance standards
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5. Intermediate in Material Stabilizer Additives ManufacturingChemical manufacturers employ 3-(4-Chlorophenyl)pyrazole as a precursor for the synthesis of pyrazole-based stabilizers used in polymer processing and industrial lubricant formulations. These stabilizers are crucial for extending the life of plastics and oils under high-temperature or oxidative conditions. Manufacturing must adhere to established standards for additive purity, migration, and compatibility with various polymer matrices to ensure regulatory acceptance and end-user safety. Industry compliance standards
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Anyone who has spent enough years in chemical synthesis will recognize the importance of consistent quality in specialty intermediates. 3-(4-Chlorophenyl)Pyrazole stands out in our product line as the result of steady innovation and detailed process refinement. As manufacturers, we approach every batch with a focus on reliability, operational safety, and real-world performance, learned from decades in the field rather than textbook promises.
In our own labs and on site, we produce 3-(4-Chlorophenyl)Pyrazole with a firm commitment to traceability and batch-to-batch consistency. For us, quality does not simply mean hitting a percentage target in a report. We routinely verify purity levels upwards of 99%, but our staff monitors for more subtle signals of unwanted byproducts, minimized every step from raw material selection to purification. This vigilant oversight means that chemists and downstream manufacturers avoid hiccups — no particle surprises, less clogging, cleaner process streams.
This substance, molecular formula C9H7ClN2, is more than a curiosity from an academic paper. In hands-on production roles, we've come to rely on its reactivity profile for building complex heterocyclic scaffolds. Pyrazole rings play a starring role in developing new agrochemicals and pharmaceutical actives. The presence of the 4-chlorophenyl group tunes electronic effects, improving site-specific reactions that can be temperamental with other aryl substitutions.
The substance’s melting point gives crucial feedback about batch purity and suitability for use in further synthesis. Our technical staff routinely studies melting characteristics alongside spectral data for every batch we deliver. We offer not only dry, free-flowing powder but also custom packaging for high-throughput processes or sensitive labs needing smaller aliquots. These options reflect problems we’ve solved personally, not answers from a distant catalog.
Moving from flask to drum-size synthesis, real bottlenecks show up. By maintaining tight controls on moisture content and contaminants, we help contract manufacturers and R&D facilities prevent setbacks that chew up budgets and deadlines. In our earliest years, we learned the hard way that seemingly “minor” contaminants cause color changes, unwanted reactivity, or regulatory headaches for customers. These lessons guide each manufacturing run today.
In downstream steps, side chain reactions often need a non-reactive, chlorinated aryl group positioned exactly right. Subtleties in substitution—chlorine on the para position makes all the difference. We’ve received enough feedback from formulators that other pyrazole isomers fail to deliver comparable regioselectivity in cyclization and coupling methods. We listen and refine, not just for our own process but for every chemist counting on our work.
Chemists weighing supply sources want candid, experience-based insights, not marketing gloss. Our direct synthesis routes produce fewer tars and colored degradation products than those using legacy methods. Many regional suppliers put profit before quality, sometimes ignoring longer drying times that leave residual solvents behind. By using carefully selected raw starting materials and real-time process monitoring, we reach higher purity with less batch-to-batch drift.
We have trialed 3-phenylpyrazole, 3-(3-chlorophenyl)pyrazole, and other substituted pyrazoles for certain customer applications. While some show slightly lower production costs, the 4-chloro isomer offers a predictable profile in both classical and modern cross-coupling reactions. Colleagues tell us impurities in closely related materials knock yields off course, especially once process temperatures climb during scale-up. Our technical team investigates every related isomer, but 3-(4-Chlorophenyl)Pyrazole has shown the most robust and reproducible performance in both our hands and those of our industrial partners.
In the real world, demand for 3-(4-Chlorophenyl)Pyrazole doesn’t arise from abstract arguments. As agricultural regulations tighten and pharmaceutical pipelines diversify, more research teams ask for intermediates with proven tract records. This compound helps enable the synthesis of fungicides, herbicides, and active pharmaceutical ingredients that must clear not only efficacy, but also toxicological and environmental safety hurdles. Each shipment passes far more than a checkbox list—it has already proved itself through repeated pilot and commercial production runs.
From customer visits and industry trade fairs, the message remains consistent: speed, reliability, and flexibility matter just as much as high-purity numbers. We have seen supply chain bottlenecks cause multi-week shutdowns. Our in-house inventory management allows faster response to urgent orders, and contingency planning helps maintain continuity even if global logistics falter. The ability to deliver on short notice comes only from ongoing investment in both people and production infrastructure.
Each drum or kilogram bag of 3-(4-Chlorophenyl)Pyrazole comes with documentation developed to meet both customer and regulatory expectations. We take pride in maintaining complete, transparent COAs and analytical reports. No two customers are alike, and we adjust documentation based on specific end-use needs—from in-process manufacturing support to final product registration in export markets.
As manufacturers, we stay actively involved with end-user safety protocols. Many clients have specific requirements for dust control, packaging resilience during transport, and traceability to original synthesis dates. We engage directly with plant engineers and compliance staff to address concerns around storage, shelf-life, and waste handling. These aren’t distant standards—they come from year-on-year working partnerships.
During scale-up, operators often encounter deviations that the lab never hints at. Whether it’s an unexpected darkening, viscosity spike, or compatibility hiccup in downstream reactions, we offer root-cause analysis support. Our technical staff includes synthesis chemists and engineers experienced in real production-line troubleshooting. This practical know-how saves time and avoids costly back-and-forth. We treat every technical support inquiry as an opportunity to deepen our understanding—and to prevent recurrences for the next batch.
Working hands-on with formulators, we’ve addressed situations where competitors’ materials failed, especially regarding flow characteristics, dustiness, or solubility. For certain applications, excess fines cause airborne loss or problematic mixing in automated dosing. By monitoring particle size distribution and using controlled drying, we help prevent this at source. In other cases, unexpected moisture sensitivity led to shelf-life issues, which we resolved by upgrading barrier packaging and refining in-process drying.
We encourage open communication with customers. This approach helps address even non-standard requirements, like preparing special batches with reduced residual solvent levels or alternate pack sizes to fit automated production lines. Flexibility comes from deep product knowledge and a willingness to adapt manufacturing. Field feedback loops drive many of our annual process improvements.
Feedback from pilot facilities guides our scale-up engineering. Many challenges only emerge after moving beyond bench-scale: heating uniformity, controlled addition rates, effective mixing, and safe venting are not abstract concerns, but critical for running a stable, economical process. We build these realities into each plant run. Over the years, updates in reactor design, mixing protocols, or filtration have emerged from simple conversations with plant chemists working under daily pressure.
Change management forms a core part of our philosophy. Each process optimization—whether it tweaks temperature ramps or solvent exchanges—runs through validation, not shortcutting to market. Our repeat customers appreciate this transparency. Several pharmaceutical and agrochemical partners have shared their own data with us, confirming the comparative advantage of our material in downstream synthesis or biological screening. Clear, ongoing dialogue helps us refine process controls and predict emerging industry trends.
The industry’s environmental standards have risen markedly. Legacy systems treated waste as an afterthought, but today, compliance with local emissions laws is essential just to keep the door open. Our production looks beyond the fence line—lowering process waste wherever practical, treating emissions, and tracking all process streams carefully. No manufacturer can afford to ignore local and international standards for waste management or exposure controls.
For our own peace of mind, as much as for compliance, we invest in closed transfer systems and effective containment. Our solvent recycling program has cut the volume of hazardous waste generated. At the same time, we maintain change-tracking for every change in inputs or process. Customers working in regulated industries need confidence in our oversight, not just a certificate of analysis. Regular inspection and documentation give confidence not only to auditors, but to every technician in the loop.
Market requirements keep evolving. Some of the fastest-growing application areas for 3-(4-Chlorophenyl)Pyrazole call for ever-tighter impurity limits, driven by both end-user safety expectations and pressure from health and environmental authorities. We recognize that success depends on anticipating the next set of technical standards or regulatory changes before they arrive. This anticipation only comes from hands-on process review and a strong feedback network through both established and emerging research partners.
As application knowledge expands, new derivatives and analogs emerge from customer innovation pipelines. Our R&D team is positioned to synthesize and qualify next-generation intermediates with improved performance or specificity. Being ready for the next shift—be it bio-based solvents, greener process routes, or new regulatory hurdles—forms part of our daily planning. We maintain close ties with academic researchers and engage actively in industry working groups, bringing those insights back into our own manufacturing processes.
3-(4-Chlorophenyl)Pyrazole represents more than a product code on an inventory list. Our approach, shaped by years in the field, values hands-on know-how, ongoing investment in process, and strong partnerships above quick fixes or short cuts. Every improvement, large or small, makes an impact on the plant floor, in R&D performance, and down the line in customer innovation. For new users, our team stands ready to provide not only reliable supply, but practical solutions gained the hard way—from real experience, not marketing handbooks. In a business where trust, traceability, and technical insight mean everything, we don’t just make chemicals—we work every day to make better chemistry.