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5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole

    • Product Name 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole
    • Alias 5-chloro-4-nitro-1,3-dimethylpyrazole
    • Einecs 697-426-2
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    816398

    Chemical Name 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole
    Cas Number 70290-25-8
    Molecular Formula C5H6ClN3O2
    Molecular Weight 175.57
    Appearance Yellow solid
    Melting Point 119-122°C
    Solubility Slightly soluble in water; soluble in organic solvents
    Purity Typically ≥98%
    Synonyms 5-Chloro-1,3-dimethyl-4-nitro-pyrazole
    Storage Temperature Room temperature, away from light
    Inchi InChI=1S/C5H6ClN3O2/c1-8-4(6)5(10)9(2)3-8/h3H,1-2H3
    Smiles Cn1nc(C)c(c1[N+](=O)[O-])Cl

    As an accredited 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Sealed amber glass bottle, 25 grams, labeled with chemical name, concentration, hazard symbols, batch number, and supplier information.
    Shipping **Shipping Description:** 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole should be shipped in tightly sealed containers, protected from light, moisture, and incompatible substances. Transport under ambient temperature with appropriate labeling according to relevant chemical and hazardous material regulations. Ensure containers are securely packed to prevent breakage and leaks during transit. Handle with standard chemical shipping precautions.
    Storage Store **5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole** in a tightly sealed container, protected from light, moisture, and incompatible substances such as strong oxidizers and acids. Keep in a cool, dry, and well-ventilated area. Ensure proper labeling and adhere to relevant chemical storage guidelines. Use personal protective equipment when handling, and store away from heat sources or open flames, as nitro compounds may pose explosion risks.
    Application of 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole

    Applications of 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole in Industrial Manufacturing

    5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole serves as a crucial intermediate in advanced chemical synthesis for pharmaceuticals, crop protection, colorants, specialty polymers, and fine chemicals. As a direct manufacturer with process control at scale, we support high-purity, controlled integration for demanding downstream sectors requiring reliable sourcing and strict compliance.

    1. Pharmaceutical Intermediate Synthesis

    This compound enters multistep syntheses for non-steroidal anti-inflammatory agents and selective kinase inhibitors. Process chemists utilize it as a building block for heterocyclic drug scaffolds targeting CNS, oncology, and orphan drug markets. Integration focuses on step economy, impurity profile control, and facilitating late-stage functionalization. Regulatory submission batches rely on stringent traceability from our facility.

    Industry compliance standards

    • ICH Q7 GMP Guidance for Active Pharmaceutical Ingredients
    • 21 CFR Part 211 (FDA cGMP for Finished Pharmaceuticals)
    • EU Commission Directive 2001/83/EC
    • USP and EP monographs as applicable to endpoints

    Typical usage ratio

    • 10–35 mol% depending on molecular route design; adjusted for desired throughput and intermediate yield preservation in pilot and production scale campaigns.

    Downstream process integration

    • Charged in initial heterocycle coupling or nitration steps, followed by purification to maintain impurity control in regulated API manufacturing.

    Final product types

    • Targeted oral, injectable, and specialty drugs with pyrazole core structures
    • Small-molecule research reference standards
    • Intermediates for clinical trial batch APIs

    2. Crop Protection Active Ingredient Production

    This raw material is prized in selective synthesis of pyrazole-derived fungicides and insecticides. Agrochemical formulators utilize it for stepwise construction of bioactive agents with targeted field performance and environmental safety. QC teams monitor residuals to ensure product meets global residue limits, while application chemists dial ratios based on the target spectrum and product registration dossier requirements.

    Industry compliance standards

    • FAO/WHO JMPR Residue Guidelines
    • ISO 9001:2015 Quality Management Systems
    • REACH Regulation (EC 1907/2006) substance registration
    • China National GB Conformance for Pesticide Intermediates

    Typical usage ratio

    • 15–60 g per kg of synthetic batch, adjusted by compound-specific titration, yield tests and desired activity level per registration target.

    Downstream process integration

    • Input for condensation or cyclization to build fungicidal and insecticidal actives, isolated before formulation and granulation into field-ready products.

    Final product types

    • Seed treatment actives (suspension concentrate, flowable concentrate)
    • Fungicide wettable powders
    • Pyrazole-based pest control liquids and granules

    3. Specialty Dyes & Pigments Manufacturing

    Formulators apply this pyrazole variant to engineer chromophore systems in the industrial colorants sector. In combination with diazonium salts and couplers, it enables unique shades and improved fastness properties in pigment synthesis. End users demand batch reproducibility, minimized side products, and accurate reporting for regulatory disclosures. Process engineers fine-tune input levels by shade requirement and substrate type.

    Industry compliance standards

    • EN 71-3: Safety of Toys – Migration of Certain Elements
    • OEKO-TEX Standard 100 for textile applications
    • REACH Annex XVII restriction for azo compounds
    • ISO 9001:2015 Quality Management for dye and pigment plants

    Typical usage ratio

    • 5–20 wt% in azo dye coupling reactions, adjusted to color strength, fastness, and end-use application of the pigment batch.

    Downstream process integration

    • Added to primary condensation reactions; output then isolated, washed, and milled for downstream pigment blending or direct dye formulation.

    Final product types

    • High-performance textile dyes
    • Automotive color pigments
    • Printing ink intermediates
    • Color masterbatch concentrates for plastics

    4. Advanced Polymer Modifier Synthesis

    Polymer chemists incorporate this intermediate in the design of functionalized polymers for filtration membranes, specialty adhesives, and high-performance elastomers. It introduces polarity or cross-linking sites to tune mechanical, barrier, and chemical resistance properties. Production is closely controlled for molecular weight distribution and absence of leachable impurities, while technical staff confirm compliance for demanding polymer end uses.

    Industry compliance standards

    • ISO 14001 Environmental Management for polymer production sites
    • EU Regulation (EU) No 10/2011 on plastic materials for food contact (if for indirect food-contact polymers)
    • SGS RoHS Testing for end-use electronics, automotive, or construction products
    • US EPA TSCA Inventory status

    Typical usage ratio

    • 0.5–6 phr (parts per hundred resin) in copolymerization or post-functionalization, based on targeted property enhancement and performance validation.

    Downstream process integration

    • Incorporated during monomer blend or introduced in reactive extrusion; final polymer undergoes compounding and QC for application-specific standards.

    Final product types

    • High-selectivity filtration membranes
    • Solvent-resistant adhesive films
    • Elastomer compounds for advanced sealing
    • Specialty engineered plastics for equipment housings
    Free Quote

    Competitive 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Introducing 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole: A Look from the Manufacturer’s Perspective

    Putting Craft and Chemistry to Work

    The journey behind the production of 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole starts in the heart of synthetic chemistry. Our team spends considerable time examining every aspect of this molecule, making sure that what leaves our facility reflects both technical know-how and respect for the process. This compound, often requested by researchers and specialist formulators, doesn’t come off a generic line. Every kilogram carries the mark of controlled steps, attention to reaction subtlety, and careful purification.

    The official name might sound complex, but behind those chemical terms, there’s a structure known for its robustness in many settings. Its pyrazole nucleus, coupled with chloro, methyl, and nitro groups at just the right positions, provides a chemical personality that stands apart from other substituted pyrazoles. Many labs ask why this molecule not only survives but thrives under test benches, storage conditions, and synthesis loops where others falter. The answer isn’t a mystery when you live the production realities every day.

    Molecular Model, Appearance, and Physical Particulars

    Synthesizing 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole is not just about tossing reagents together. We stick to conditions that avoid unnecessary byproducts, controlling the aromatic nitration and methylation with patience. Still, even after so long manufacturing this molecule, it surprises us—yield tweaks depend on solvent choice, and on subtle changes in agitation, or the sequence of addition. Analytical labs confirm the structure with NMR and mass spectrometry, but operators in the plant almost always notice this product’s distinct yellow crystalline form. The powder is free-flowing and manageable—easy to weigh and transfer without the tendencies toward caking or static charge that can dog similar nitro-pyrazoles.

    On paper, it carries a molecular formula of C5H6ClN3O2 and typically sits close to 1.8 grams per cubic centimeter in density. We regularly see purity at or above 98.5% by HPLC, with clear spectra and clean baselines. This isn’t by luck. Keeping side products such as 3-methyl analogues or isomeric di-nitro offshoots away from the final bags demands extra steps—careful filtration, additional wash tanks, and sometimes column passes. That means less downstream troubleshooting for you.

    Valued Applications Rooted in Industry Know-How

    People come to us with a range of needs—some for scale-up in agricultural R&D, others to develop advanced pharmaceutical intermediates, and occasionally for specialty energetic materials. This doesn’t surprise anyone familiar with 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole’s reputation for structural versatility. Once loaded in a reaction flask, that chloro group often serves as a handle for further substitution, introducing fluorinated motifs or aryl fragments more efficiently than less activated analogues.

    Notably, agrochemical researchers like using this structure as a stepping stone to fungicidal heterocycles. We’ve handled contracts where the pyrazole backbone enters pilot stages for seed coatings or leaf protectants. The methyl groups shield the ring from unwanted oxidation or hydrolysis, leading to more stable intermediates in hot or humidity-prone environments. Every so often, a pharmaceutical client investigates this compound’s nitro group as a latent amine precursor, feeding into kinase inhibitor libraries or anti-inflammatory scaffolds. Being both a robust reactant and a stable bench chemical, it forms a bridge between exploratory chemistry and scalable application.

    Compared to Other Pyrazoles and Substituted Heterocycles

    Anyone reading about heterocyclic chemistry long enough will find endless catalogues of methylated, halogenated, or nitro-containing pyrazoles. Yet, each change in substitution pattern gives rise to new challenges. For us, making 5-chloro-1,3-dimethyl-4-nitro-1H-pyrazole stands apart for a few reasons. Its selectivity in multi-step synthesis frequently results in cleaner coupling chemistry than the 4-chloro or 1-methyl variants. In practical terms, this means downstream yields are less likely to fall victim to competitive side reactions or unwanted rearrangements.

    By comparison, the closely related 3,5-dimethyl or 1,3,5-trimethyl pyrazoles often introduce steric hindrance that reduces solubility and complicates purification. Nitro groups at alternate positions, like 3-nitro-substituted analogs, can act as red herrings for analysts—confusing NMR patterns and introducing stability challenges, especially under strong basic or reductive conditions. The format we produce gives consistent melting, high-purity batches, and reliable reaction profiles, whether you’re processing four-figure lab lots or multi-tonne campaigns.

    Talking with customers from multiple industries, we’ve heard similar feedback: this compound saves them time, cuts Purification headaches, and allows for experimentation that would otherwise be out of reach. Chemists pursuing patent-protected agrochemical actives value the site selectivity, while discovery teams in pharma appreciate the amenable ring for late-stage diversifications. Those working in materials and polymer sectors often point out the reliability of its nitro group for controlled post-modification.

    The Manufacturer's Challenges and Solutions

    No batch of this product gets released without more eyes on it than most compounds. Our plant teams deal directly with solvents whose choices affect color and crystal size. Temperature swings can shift yield by several percent, sometimes dropping active content if the process drifts a few degrees. We constantly tweak cooling profiles to minimize side-product crystallization, keeping the main lot within tight particle size windows. Many small problems with other nitro-heterocycles simply don’t materialize here, thanks in part to the robust synthetic protocol and a culture of catching issues before they run out of control.

    Whether it’s a panel of QC chemists or front-line shift operators, the team always emphasizes purity and material behavior under both storage and shipment. No transport stress, no mystery decompositions, and no re-batching headaches—any customer should be able to open a drum and see exactly what’s expected: a uniform yellow solid, free from fines and coarse chunks alike. We even work with logistics teams to choose packing materials that won’t shed static or add micro-contamination.

    Safety, Documentation, and Traceability

    It surprises some to learn how much behind-the-scenes work goes into regulatory alignment. Sourcing nitration agents and chlorinated reagents calls for compliance checks and up-to-date safety training on the production floor. Data sheets aren’t an afterthought but a living record of analytical performance—raw NMR files logged alongside spectra from each production run, visible not just to QC teams but to anyone asking about provenance or quality.

    We also ensure every lot receives unique identification codes, linking lab records to plant batch logs and outbound inventory. No mix-ups, no short-cuts—just honest tracking so our users know the history of any shipment from first gram to last. Having all this data at our fingertips allows us to stand by quality claims without hedging or qualifiers. Audits, both internal and from customers, only improve the process by flagging weak spots and spurring further investment in automation or tracking equipment.

    What Sets Our Production Environment Apart

    Unlike outfits that simply repackage or re-label imported material, we oversee every segment—raw materials intake, in-plant synthesis, mid-process sampling, and final packaging. Operators work beside process engineers and analytical chemists, fielding questions and responding directly to process changes. Having a feedback loop between the ground floor and product developers means rapid corrections. If a crystallization doesn’t settle out properly, we adjust in real time, not after the fact.

    Our experience tells us that the best chemistries rarely translate directly from academic protocols to commercial scale. Issues with solvent exchange, filtration timing, or even batch drying have pushed us to design better equipment and SOPs. Management culture favors open discussion, so even minor oddities—a trace of extra yellow on the filter cake or a shift in particle size distribution—get attention before they reach customers. Rather than hiding flaws, we share what we’ve learned so everyone wins.

    Looking Forward—Sustainability and Responsiveness in Chemistry

    Questions about environmental impact never stay theoretical for long. We draw water for process cooling from closed loops and return spent nitrating agents to on-site treatment tanks. Every change from solvent swaps to solid-waste protocols comes after examining real data on waste minimization. Our team favors green chemistry wherever practical—reagent excess kept low, energy management reviewed every quarter, and rigorous tracking of emissions and run-off.

    Long-term reliability asks more of us than just consistent product. Customers rely on accurate lead times, fair pricing, and real human answers. If demand spikes or a client wants technical customization, our R&D and production groups meet directly to decide next steps. Practicing chemistry at this level leaves little room for guesswork: reproducibility, transparency, and honest dialogue form the foundation for each project. Unexpected problems can come from anywhere—a hiccup with a filter press, a late solvent shipment, or a shift in upstream regulations. Our experience navigating these challenges becomes the customer’s edge, letting them concentrate on their own end uses rather than troubleshooting supply.

    Supported Uses and Customer Feedback

    Daily production connects us to some of the brightest minds in discovery and scale-up chemistry. Over the years we’ve watched as this compound supported the launch of experimental agrochemical platforms, the assembly of pharmaceutical lead libraries, and the improvement of specialized polymer backbones. Real-time discussions with downstream users yield focused tips—a change in the order of addition, perhaps, or an unexpected byproduct under certain storage conditions. By listening closely, we’ve adapted our methods and sometimes head off surprises before they impact users.

    We keep records of application feedback, both formal and informal. Reports of outstanding reagent conduct in Suzuki-type couplings, smooth conversion under Buchwald protocols, and no untoward caking after months on the shelf are worth more than any certificate. Responsiveness to process feedback means users get full benefit from modifying this molecule for specific synthetic wants—adding a boronic ester here, working in hydrazine crossover there. None of this comes from guesswork, but from years refining both the lab synthesis and full-scale plant operation.

    Addressing Industry Shifts and Regulatory Pressures

    Over the last decade, changing global regulations have forced every chemical maker to rethink and sometimes reinvent how materials flow, both within the factory and outward into the world. Tighter protocols for handling and shipping nitrated compounds affect us as much as anyone. We invest in up-to-date hazard data collection, conduct recurring in-plant drills, and maintain open lines with regulatory bodies. Tracing ingredients back to original suppliers, testing for unexpected impurities, and keeping up with best practices in the industry stand as baselines for ongoing improvement.

    Being ready to answer technical questions from auditors and customers with data in hand matters more than ever. Regulations shift and expand quickly, but experience running production at scale, willingness to publish real results, and investment in automation and tracking allow us to stay both agile and in control. The outcome: customers don’t face supply interruptions or compliance errors, and our teams stay ahead of emerging requirements rather than running to catch up.

    Stewardship in Chemical Manufacturing

    All told, manufacturing 5-Chloro-1,3-Dimethyl-4-Nitro-1H-Pyrazole isn’t just about producing a specialty molecule. It’s a daily test of practical knowledge, collaborative troubleshooting, and commitment to customer needs. By staying directly involved in every aspect—from supplier auditing to batch signoff—our team cultivates expertise that carries through into real-world reliability and innovation.

    Anyone in the business long enough learns to spot talk from action. Stakeholders from R&D through procurement know that effective manufacturing means more than checking boxes. Consistency in color, granule size, and run-to-run purity indicates a process under control—not just this quarter, but year after year. It’s the result of deliberate choices at each step, guided by both science and honest evaluation.

    Users from pharma, agrochemical, and material sectors call for new approaches and occasionally stretch typical specifications. We welcome the challenges because every demand pushes us to refine, adapt, and sometimes reinvent. By keeping a direct hand in production, documenting results, and staying visible to customer questions and audits, we don’t just deliver a product. We participate in advancing chemistry, sharing both lessons learned and success stories as partners in discovery.