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4-Fluorobenzhydrazide

    • Product Name 4-Fluorobenzhydrazide
    • Alias 4-Fluorophenylhydrazide
    • Einecs 225-043-2
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry sales7@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    929281

    Cas Number 456-45-1
    Molecular Formula C7H7FN2O
    Molecular Weight 154.14
    Iupac Name 4-fluorobenzohydrazide
    Appearance White to off-white solid
    Melting Point 151-154°C
    Solubility Soluble in methanol, ethanol, DMSO
    Smiles C1=CC(=CC=C1C(=O)NN)F
    Inchi InChI=1S/C7H7FN2O/c8-6-3-1-5(2-4-6)7(11)10-9/h1-4H,9H2,(H,10,11)
    Storage Temperature Store at room temperature
    Synonyms p-Fluorobenzohydrazide; 4-Fluorobenzoic acid hydrazide
    Ec Number 207-266-4

    As an accredited 4-Fluorobenzhydrazide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 4-Fluorobenzhydrazide (25 g) is supplied in a sealed, amber glass bottle with a clearly labeled, chemical-resistant screw cap.
    Shipping 4-Fluorobenzhydrazide is securely packaged in airtight, chemical-resistant containers to prevent leakage or contamination. It is shipped according to chemical safety regulations, accompanied by appropriate documentation such as Safety Data Sheets (SDS). The package is clearly labeled, handled by certified carriers, and shipped under conditions that minimize exposure to heat and moisture.
    Storage 4-Fluorobenzhydrazide should be stored in a tightly closed container, in a cool, dry, well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizers. Protect from moisture and direct sunlight. Use appropriate chemical storage cabinets if available and clearly label the container. Keep out of reach of unauthorized personnel and dispose of waste according to local regulations.
    Application of 4-Fluorobenzhydrazide

    Applications of 4-Fluorobenzhydrazide in Industrial Manufacturing

    4-Fluorobenzhydrazide serves as a key intermediate in several specialized industrial sectors, valued for its reliable incorporation into advanced synthesis pathways and precise compliance with international quality standards. Below, we outline targeted application scenarios based on actual downstream manufacturing integrations, emphasizing technical details required by professional users.

    1. Active Pharmaceutical Ingredient (API) Synthesis – Anti-Tubercular Drug Intermediates

    Pharmaceutical manufacturers incorporate 4-Fluorobenzhydrazide as an essential intermediate during the multi-step synthesis of hydrazide-based anti-tubercular agents. Its structural stability helps ensure targeted fluorination, which is retained during the acylation and subsequent coupling procedures of API assembly. During process optimization, production teams finely tune reaction parameters to align with international pharmacopoeia standards, focusing on minimization of impurities generated during the hydrazone formation and downstream derivatization. This intermediate primarily enters as a nucleophilic reagent in semi-batch or continuous stirred-tank reactors and is purified to pharmaceutical grade prior to formulation of the final active ingredient.

    Industry compliance standards

    • Current Good Manufacturing Practice (cGMP, US FDA 21 CFR Part 210/211)
    • European Pharmacopoeia (EP)
    • United States Pharmacopeia (USP)
    • ICH Q7 Guideline for API Manufacturing

    Typical usage ratio

    • 0.8–1.2 molar equivalents relative to the core heterocyclic substrate; stoichiometry adjusted according to process yield and side reaction inhibition.

    Downstream process integration

    • Charged during Stage II of multi-step API synthesis, typically following the halogen-substituted aromatic condensation phase; reacts under strictly controlled temperature and inert atmosphere.

    Final product types

    • Anti-tubercular drug APIs (e.g., fluoro-substituted isoniazid derivatives)
    • Hydrazide-based anti-infective compounds

    2. Agrochemical Intermediate – Synthesis of Fluorinated Herbicide Compounds

    Agrochemical producers rely on the fluorinated hydrazide functional group within 4-Fluorobenzhydrazide to create selective pre-emergent herbicide active molecules. The compound is directly introduced during the hydrazone condensation step to impart fluorinated properties, which play a crucial role in modulating metabolic stability and herbicidal selectivity toward weed species. Manufacturers follow regional agricultural chemical regulations, conducting strict in-process testing for conversion rates and residual solvents during reactor discharge, and validating batch quality prior to formulation into wettable powders or emulsifiable concentrates.

    Industry compliance standards

    • FAO/WHO Specifications and Evaluations for Agricultural Pesticides
    • European REACH Regulation (EC 1907/2006)
    • EPA Pesticide Registration (US 40 CFR Part 158)
    • ISO 9001:2015 Quality Management for Agrochemical Synthesis

    Typical usage ratio

    • 0.10–0.25 weight fraction in final active-induced synthetic pathways; optimized considering the target molecule and crop safety profile.

    Downstream process integration

    • Fed-batch addition during condensation-polymerization stages for fluorinated herbicide API manufacture, preceding esterification and purification steps for solid or liquid formulations.

    Final product types

    • Pre- and post-emergent herbicide actives (e.g., fluoro-substituted phenylhydrazone herbicides)
    • Technical grade herbicide intermediates

    3. Dye Synthesis – Precision Intermediate for Azo Dye Manufacturing

    Specialty dye manufacturers use 4-Fluorobenzhydrazide for the controlled production of fluorinated azo and hydrazone dyes. The compound is essential in diazotization and coupling reactions, where the fluorine atom increases dye fastness properties and enhances the stability of coloration on textiles and engineered polymers. Downstream, the precise proportion of hydrazide is calculated based on color strength and compatibility with fiber matrices. Each batch undergoes quality control for residual amines and byproduct minimization, while strict adherence to environmental standards ensures regulatory-compliant discharge management.

    Industry compliance standards

    • OEKO-TEX Standard 100
    • EU REACH Annex XVII (Azo Dyes Restrictions)
    • ZDHC MRSL for Textile Chemicals
    • ISO 14001 Environmental Management (for effluent control)

    Typical usage ratio

    • 0.05–0.18 mole fraction in dye synthesis routes, recalculated for chromophore intensity and batch size scaling.

    Downstream process integration

    • Introduced in the primary diazotization or coupling reaction step; reacted with aromatic amines or phenols to create the chromogenic structures, followed by washing and drying.

    Final product types

    • Fluorinated azo dyes for textile applications
    • Colored masterbatch additives for polymers

    4. Fine Chemical Synthesis – Custom-Built Building Blocks for Material Science

    R&D and specialty fine chemical operations integrate 4-Fluorobenzhydrazide into the synthesis of unique functional building blocks, frequently for catalysts, electronic materials, or cross-linking agents. Laboratories and scaled-up facilities use it in heterocyclic ring closure reactions, N–N bond construction for assembly of advanced ligands, and manufacturing of fluorinated carbazides desired in custom material science initiatives. Usage levels are precisely engineered for each molecular target, and handling protocols align with occupational safety standards for laboratory-grade and pilot-plant operations.

    Industry compliance standards

    • ISO 9001:2015 Quality Management in Fine Chemical Wet Labs
    • GLP (Good Laboratory Practice, OECD Principles)
    • Specialty chemical regulatory export controls (where applicable)
    • Local workplace safety standards (e.g., OSHA Hazardous Chemical Handling)

    Typical usage ratio

    • 0.02–0.15 equivalent ratio per functional group, varied by target compound yield and laboratory optimization studies.

    Downstream process integration

    • Reacted during early-stage functionalization or targeted cyclization protocols; often introduced under nitrogen blanket with control of exothermic reaction rates.

    Final product types

    • Fluorinated ligand precursors
    • Reactive intermediates for specialty polymers and catalysts
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    Certification & Compliance
    More Introduction

    Introducing 4-Fluorobenzhydrazide: A Reliable Building Block in Modern Synthesis

    The Role of 4-Fluorobenzhydrazide in Fine Chemical Manufacturing

    At our chemical production facility, 4-Fluorobenzhydrazide stands out as a fundamental compound supporting a variety of research and industrial applications. After years spent in chemical manufacturing, I have seen how purity, batch consistency, and material reliability shape outcomes in the laboratory and at scale. This hydrazide, produced to ensure reproducible quality, has become a staple where selective fluorination and functional group transformation drive innovation.

    Chemists searching for a trustworthy source of 4-Fluorobenzhydrazide often seek features like an established synthetic route, consistent crystalline appearance, and stable physicochemical properties under standard storage conditions. Through careful control of raw materials and validated process design, we maintain a solid white to off-white powder that meets the high bar set by downstream synthesis. Our batches leave the reactor with a narrow melting point range, a routine signifier of both purity and reliable manufacturing practices.

    Model and Key Specifications

    Our 4-Fluorobenzhydrazide (CAS number 1698-77-3) is not just an item within a catalog; it is a result of repeated optimization. We typically supply this compound at laboratory and production scales under lot numbers directly traceable through our internal quality assurance systems. HPLC analysis shows minimum 99% purity, and each lot is matched against reference standards for the characteristic NMR spectrum and infrared fingerprint. Particle size distribution remains within a narrow band to support easy weighing and transfer, so bench chemists waste less time handling challenging solids. Moisture uptake stays low, as we verify with Karl Fischer analysis. Stability under correct packaging has been verified throughout transit in a range of climates, so degradation never undermines performance in the hands of formulators or synthetic chemists.

    Many stakeholders ask about residual solvents and byproducts. We use a purification process that goes beyond simple recrystallization, applying an intensive vacuum stripping step and, when needed, chromatographic separation for ultra-sensitive applications. Our team documents GC and LC residual profiles, making CoAs that address the specifications demanded by regulatory inspection, internal audits, or direct scale-up.

    4-Fluorobenzhydrazide Versus Other Benzhydrazide Derivatives

    Some users wonder why 4-Fluorobenzhydrazide attracts growing interest even alongside more established benzhydrazide derivatives. Comparatively, the para-fluoro substitution influences both electronic and steric aspects, making this compound especially effective where downstream substitution patterns dictate selectivity. Analogs lacking this functionality display differences in reactivity that are not always trivial if your process hinges on robust coupling or transformation steps. Bench experience shows that fluorination confers enhanced stability under some oxidative or nucleophilic conditions, which matters for challenging synthetic programs where other substituents fall short.

    Our customers in agrochemical, pharmaceutical, and dye intermediate research have pointed out the unique reaction behavior imparted by this fluorine atom. For example, certain hydrazide-hydrazone conversions require precise electronic tuning unavailable from unsubstituted or ortho/meta-modified benzhydrazides. Chemists dealing with custom library synthesis benefit from this specificity as it cuts down process development time and improves reproducibility.

    In contrast, related compounds such as benzhydrazide itself or 4-chlorobenzhydrazide do not always deliver the same set of properties in downstream transformations. Organic synthesis often rewards incremental improvements; the fluorinated variant stands apart in many contexts because it balances hydrazide functionality with the subtle influence of a single fluorine atom.

    Applications in Research and Industry

    Current usage includes roles in drug design, structure-activity relationship studies, and access to new heterocyclic motifs. Organic synthesis chemists rely on 4-Fluorobenzhydrazide for forming hydrazones, pharmaceuticals, and advanced materials. Recently, projects in the development of kinase inhibitors have highlighted the relevance of substituted hydrazides for efficient library creation. Our production records confirm orders routed toward medicinal chemistry labs using this product in fragment coupling steps where precise substitution yields best results.

    The compound also helps in the preparation of fluorescent signaling molecules and fine-tuned ligands needed in sensor research. Several start-ups in chemical biology have built assay platforms with hydrazide-based linkers, and our fluorinated lot was chosen for its record of delivering repeatable conjugates. Other applications include small molecule building blocks for polymer and coating research, where a single substitution can enhance the properties of a much larger system.

    Because we maintain direct dialogue with formulating teams, end users have described reliable process transfer when switching from pilot to larger scale manufacture. Our 4-Fluorobenzhydrazide avoids problematic impurities commonly observed in less rigorously prepared lots, which means fewer surprises in scale-up or regulatory submissions. This detail seems minor until a red flag in an HPLC trace disrupts a project deadline—something our batch records aim to prevent at the outset.

    Manufacturing Experience and Consistency

    Across the years, our operators and process chemists have improved both the raw material sourcing and the work-up protocols for this product. Early on, we saw how small variations in temperature control during the hydrazide formation step led to broad melting point ranges and poor color performance. As we switched to more automated reactors and introduced real-time monitoring of key parameters, the process matured into a predictable, high-yielding routine. Each lot achieves high batch repeatability because in-process checks—NMR, GC, and LC—catch deviations before they become costly reworks.

    We encourage plant chemists to feed back details about points of recurring trouble, like filtration rates or unwanted foaming. This direct feedback loop between synthesis, quality teams, and customer support brings each run closer to the expectations of the most demanding clients. Research clients sometimes adjust protocols to push reactivity, while production clients lock in a stable workflow. We keep methods transparent so users receive a clear picture of operations, not marketing gloss.

    Quality Control and Assurance

    Every shipment reflects traceability from starting material through the final packing. Technicians monitor each batch at crucial milestones and curtail variability by checking purity and moisture levels before vacuum drying. During scale-up, we rerun full sample characterization, and maintain detailed records for each step. If analytical instruments flag anomalies, technical staff intervene to adjust and retest before clearing the product for release.

    Customers facing sensitive registration processes, particularly in pharma, demand rigorous impurity profiling. Our records for elemental analysis, residual solvents, and byproduct identification meet industry benchmarks. In many audits, process documentation has received acknowledgment for its granularity and openness. Storage stability receives equivalent attention; every drum and bottle is labeled for shelf life and storage guidance after passing accelerated aging tests.

    We refuse to compromise on packaging integrity. HDPE bottles, aluminum liners, and QC-sealed closures guard against accidental moisture ingress all the way to the final user. If a question arises about shipping conditions or customs holds, detailed shipment logs and photos confirm the history. This level of tracking allows us to troubleshoot and document requirements for process validation or regulatory review.

    Practical Insight: 4-Fluorobenzhydrazide in Synthesis

    One of the more rewarding aspects of large-scale synthesis is seeing how seemingly minor variations in feedstock purity ripple through long synthetic sequences. On several occasions, process chemists have reported changes in downstream yield related to trace oxidants or residual starting materials present in benzhydrazide derivatives. Implementing routine in-process checks on 4-Fluorobenzhydrazide—like TLC spot purity and liquid chromatographic profiling—proved vital for eliminating sources of batch-to-batch inconsistency.

    During the launch of a new intermediate aimed at CNS-active molecules, a customer’s team shared their challenges with alternative suppliers. They found that inconsistent melting points and higher volatility were producing unreliable yields. Switching entirely to our facility’s 4-Fluorobenzhydrazide, produced under full GMP compliance, directly boosted their hit rate for cyclization and allowed clean upscaling without needing repeated purification.

    The foundation of reliable chemical manufacturing is not a glossy product brochure but attention to chemistry at every step. Weekly lab meetings focus on subtle findings—the influence of a humid week, changing solvent brands, or minor fluctuations in reaction temperature. Process improvements come not from theoretical checklists, but from repeated runs, keeping error margins as tight as possible and adapting protocols according to what benchwork shows.

    Why Chemists Keep Coming Back to This Fluorinated Compound

    Many organizations with tight delivery requirements rely on firm timelines for their critical experiments. Where alternate vendors have let purchasers down with out-of-spec batches or late arrivals, our established lead times and release protocols offer a level of confidence. Over the years, customers with seasonal spikes in demand—such as academic labs gearing up for grant-funded synthesis sprints—have relied on us to stock proper inventory and respond to changing schedules.

    Feedback matters. We rely on detailed post-delivery surveys to improve not just the product, but service as well. Recently, an R&D group reported difficulty with re-dissolving competitor’s powders for rapid hydrazone condensation steps. Our production crew fine-tuned the drying cycle, delivering batches with improved flow characteristics. Small improvements like this, rooted in direct user feedback, create long-term relationships with chemists who appreciate down-to-earth collaboration over generic sales promises.

    We also study the trends in new fluorinated hydrazide analogs entering the literature. As the demand for complex substitution increases, we prepare to adapt both production lines and analytical protocols. Partnerships with academic and chemical industry peers keep us alert to evolving needs, whether these involve higher purity, new documentation standards, or trace-level impurity identification.

    The Importance of Traceability and Documentation

    Modern chemical supply chains require more than just a Certificate of Analysis attached to a drum. Regulatory and internal requirements force customers to scrutinize supply records, production logs, and raw material origins. We meet these expectations with transparent batch histories and prompt document handling. Audit teams have complete access to our internal lot tracking and analytical archives.

    We digitize every batch record, making it easy for both plant managers and client representatives to review synthesis routes and analysis. Our production chemists participate in data integrity training, so every entry reflects reality as seen at the plant. These actions hold value not as marketing strategies, but as the backbone of reliable chemical supply.

    Partnering with quality-driven clients has forced us to think like end users. These teams probe at every uncertain detail and ask for sight of the full analytical trail. Such scrutiny can never intimidate a manufacturer committed to transparency; each answer we prepare supports our confidence in routine operation. If a client identifies a non-conformance, our QA and synthesis experts connect to adjust parameters and avoid recurring issues—long-term relationships depend on such feedback loops.

    Environmental Stewardship and Worker Safety

    Earning trust involves more than chemical quality. Modern buyers expect responsible manufacturing—minimizing waste, controlling process emissions, and safeguarding worker well-being. Our plant employs closed-loop waste streams for hydrazine handling, and we provide routine exposure monitoring to ensure air quality in the synthesis zone. Staff wear full protective equipment, and we regularly audit these procedures through accredited third-party partners.

    Waste minimization receives as much engineering attention as boosting product yield. Optimization experiments have allowed us to cut down on unnecessary solvent use in the purification sequence, shrinking the plant’s solvent emissions footprint. Spent mother liquors pass through in-house treatment before discharge according to up-to-date effluent standards. We participate in process safety workshops, learning from documented incidents across the sector, and regularly apply those lessons to daily operations.

    Our products reflect a company culture of responsible stewardship, from raw material procurement all the way to shipping. We source 4-fluorobenzoyl chloride, the hydrazide precursor, from suppliers who meet our environmental policies and screen them for safe materials handling records. Every shipment leaves our plant with reassurance not just of quality, but of integrity, too.

    Addressing Customer Concerns: Real-World Solutions

    Customers often approach us with specific pain points—not enough reproducibility, inconsistent lot behavior, or complaints about competitor materials. Our approach starts with asking users what challenges appeared in their runs, then using this feedback to upgrade our own protocols.

    For clients scaling up, minimizing variable impurity levels becomes crucial as reaction volumes grow past the multi-kilogram stage. Process deviations that cause little harm at grams become major bottlenecks at scale. By monitoring all critical control points, we can trace unexpected variations and adapt quickly to changing requirements. Key parameters—like drying temperature, intermediate handling time, and particle size—each undergo routine review in light of actual process runs, whether internal or in partnership with leading research customers.

    Some research groups face fast project turnover. Here, reliable documentation and quick access to new production batches matter more than elaborate physical properties. Our team works directly with purchasing staff to reserve lots, schedule shipments, and troubleshoot customs documentation. Timely deliveries allow chemists to focus on their research, not on logistics snags or last-minute sourcing shortages.

    The Manufacturer’s Pledge

    Every gram of 4-Fluorobenzhydrazide supplied from our facility is a product of years of accumulated expertise, laboratory patience, and plant discipline. From pilot synthesis up to routine full-scale runs, each batch has the full attention of a team focused on reproducibility and client satisfaction. Where others chase volume, we listen for details that matter to real working chemists—traceability, transparency, and consistent readiness to address evolving technical needs.

    We do not settle for neutral assurances or one-size-fits-all claims. Instead, our goal is to earn your continued trust through honesty and a proven track record of delivered quality. As chemical science and industry needs evolve, our facility remains ready to adapt, delivering 4-Fluorobenzhydrazide that satisfies the highest standard of reliability in synthesis, scale-up, and research. The backbone of any successful chemistry program lies in confidence—confidence grounded in firsthand production experience, robust quality assurance, and respect for the demands of every user we support.