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HS Code |
604607 |
| Chemicalname | 2-Fluoro-3-Nitropyridine |
| Casnumber | 349-03-5 |
| Molecularformula | C5H3FN2O2 |
| Molecularweight | 142.09 |
| Appearance | Yellow to brown solid |
| Meltingpoint | 38-42°C |
| Boilingpoint | 240°C (estimated) |
| Density | 1.48 g/cm3 (estimated) |
| Solubility | Soluble in organic solvents such as DMSO and methanol |
| Purity | Typically ≥98% |
| Smiles | c1cc(cnc1F)[N+](=O)[O-] |
| Inchi | InChI=1S/C5H3FN2O2/c6-4-2-1-3-7-5(4)8(9)10/h1-3H |
| Storageconditions | Store at room temperature, keep container tightly closed |
As an accredited 2-Fluoro-3-Nitropyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, 25 grams, tightly sealed with a screw cap, labeled with chemical name, hazard symbols, and handling precautions. |
| Shipping | 2-Fluoro-3-nitropyridine should be shipped in compliance with chemical safety regulations. It must be well-sealed in appropriate, chemical-resistant containers, clearly labeled, and protected from moisture and light. Transportation should ensure the package is upright, secure, and accompanied by a Safety Data Sheet (SDS). Follow applicable local and international shipping regulations for hazardous materials. |
| Storage | 2-Fluoro-3-Nitropyridine should be stored in a tightly sealed container, in a cool, dry, well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizers and bases. Keep the storage area free from ignition sources and moisture. Personal protective equipment should be used when handling, and access should be limited to trained individuals. Store according to relevant chemical safety regulations. |
Applications of 2-Fluoro-3-Nitropyridine in Industrial ManufacturingAs a core intermediate produced in our facility under stringent QC systems, 2-Fluoro-3-Nitropyridine supports advanced synthesis across specialized chemical manufacturing sectors. Here, we highlight its critical roles with authentic application details and operational guidance for industrial users aiming for regulatory compliance and efficient processing. 1. Pharmaceutical API Intermediate SynthesisPharmaceutical manufacturers utilize 2-Fluoro-3-Nitropyridine as a privileged building block in the synthesis of fluorinated heterocycles, frequently present in kinase inhibitors and anti-infective agents. This intermediate enters multi-step routes where precise halogen-nitration patterns are essential for target molecule activity and selectivity, particularly in new chemical entity (NCE) projects and generic drug production under regulatory monitoring. Industry compliance standards
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2. Agrochemical Active Ingredient ProductionProducers of crop protection agents use 2-Fluoro-3-Nitropyridine in the production of pyridine-based herbicides and insecticides, where the unique substitution pattern supports mode-of-action specificity. It forms key intermediates for actives with fluorinated heterocyclic backbones, which offer higher environmental stability and improved bioavailability in field formulations. Industry compliance standards
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3. Electronic Materials and Specialty ChemicalsManufacturers of electronic chemical materials incorporate 2-Fluoro-3-Nitropyridine to introduce electron-withdrawing functionalities in precursors for liquid crystal display (LCD) and organic semiconductor components. Its defined electronic profile allows design of materials with tailored dielectric and photophysical properties required for high-performance optoelectronics. Industry compliance standards
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4. Fine Chemical Synthesis for Dye and Pigment IntermediatesProducers of specialty dyes and colorants apply 2-Fluoro-3-Nitropyridine in the creation of azo and anthraquinone pigments, where strategic fluorination patterns increase lightfastness and improve solubility characteristics. Its integration supports batch and continuous synthesis processes meeting specific chromatic performance in end-use sectors such as textiles, inks, and plastics coloration. Industry compliance standards
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Chemistry rewards patience and persistent refinement. Over years of working with heterocyclic intermediates, small improvements in a process can make thousands of hours of laboratory work more efficient, safer, and ultimately less wasteful. Our team invests in perfecting the production of 2-Fluoro-3-Nitropyridine, giving researchers and manufacturers a fluorinated pyridine that provides consistent, predictable results in the hands of professionals. Our commitment to dependable quality comes from a hands-on understanding of scale-up challenges. This pyridine derivative, with its single fluorine at the 2-position and a nitro at the 3-position, comes off our lines under strict controls; we filter raw materials for trace impurities before use, follow a tailored multi-step synthesis, and monitor each lot for residual solvents below measurable thresholds. Our sample vials and industrial drums carry no unexpected odor or color, allowing focus to stay on downstream chemistry, not remedial purification.
Producing small-ring nitrogen aromatics with both strong electron-withdrawing groups and fluorine substitution takes precise orchestration. From the start, we weigh accuracy against practicality. Controlling reaction temperature within a narrow range prevents side reactions that would otherwise create reduced yield or form unwanted byproducts. The difference between a clean batch and a messy workup is often a degree or two, or a misjudged quench. Our approach involves closed-loop pumping for temperature and pressure control, inert atmosphere handling, and staged addition of reagents. We work on multi-kilogram lots, monitoring every stage with HPLC, GC-MS, and NMR—equipment calibrated by technicians who recalibrate against internal standards frequently. Our customers run similar checks; matching spectra to theirs in independent analyses keeps trust strong.
There are easy shortcuts and then there are methods that last. Patience on the manufacturing line translates to product that chemists can rely on, whether the batch comes from the same plant or is replicated six months later. Any change in crystal habit, melting point, or color means production halted while root causes are hunted down. Over time, we learned even small contamination with other pyridines—like 2-chloro or 3-aminopyridine—interferes with coupling reactions downstream. Because 2-Fluoro-3-Nitropyridine often serves as a starting material for pharmaceutical and agrochemical synthesis, the smallest deviation in purity creates expensive headaches in regulatory documentation. By keeping solid-state content above 99% and screening each batch using both spectrophotometry and mass spectrometry, we avoid such pitfalls.
No synthetic chemist wants a mystery variable in their starting material, and we feel the same way. Our own R&D team uses the same lots we ship, testing them in Buchwald-Hartwig couplings, Suzuki reactions, reductions, and nitro group modifications. Consistency in the reactivity profile saves our partners both time and raw materials. On a kilogram scale, clear and narrow boiling and melting points matter, signaling minimal contamination and predictable behavior. We do not see excess darkening or sticky residues at the bottom of the drum—potential signs of residual solvent, scavenger, or side-product. Every facility exposure gets monitored for trace metal content and water, eliminating complications in sensitive cross-coupling or reduction chemistry.
Many customers arrive with specific requirements in fluorinated heterocycles, weighing options between chloro, bromo, and other nitro pyridines. Fluorine at the 2-position offers a delicate balance of electronic influence and leaving group ability—replacements at this position require careful control. In organic synthesis, the nitro group at the 3-position supports electrophilic aromatic substitution, nucleophilic displacement, and unique ring transformations. A less controlled synthetic process would create trace isomers or incomplete substitution, increasing waste and time in purification. We gear our operations toward single-spot purity, supporting customers working in everything from ligand development, API key intermediates, to complex material design.
We foster regular communication with R&D chemists, not just procurement managers. Receiving feedback about specific bottle performance—delayed reaction, impurities noticed, filtration issues—tells us more than a standard COA. Every legitimate complaint has focused our attention back on filtration protocols, solvent recovery cycles, or packaging materials. Changing from clear drums to opaque, improving drum seals, and purging airspaces have all come directly from field requests. Results showed reduced moisture pickup and more consistent downstream formulation. Taking a batch from benchtop to a hundred kilograms almost always highlights problems that never manifest on paper. By being present at the point of use—witnessing first-hand bottleneck reactions and troubleshooting protocols—we learn where perfection becomes practical.
The landscape of pharmaceutical and agrochemical discovery changes fast. Ten years ago, chloro-pyridine cores dominated as synthetic workhorses for new actives. As regulatory scrutiny increased, so did the need for more rationally designed, less toxic intermediates. Fluorination improved metabolic stability and allowed for more productive downstream modifications. In recent years, 2-Fluoro-3-Nitropyridine has carved out a place as a valued precursor for both N-arylation and carbon-carbon coupling sequences. Its ability to serve as a masked amine—through nitro reduction—or as a leaving group in displacement reactions speeds up iterative design cycles for new chemical entities. Our own team has supplied this intermediate into projects ranging from kinase inhibitors, anti-tumor agents, and seed treatment actives, to advanced materials research.
A reliable intermediate stays stable even after long shipment or months in a warehouse. Our packaging approach resists both water ingress and accidental light exposure, using multilayer liners and nitrogen overlay before sealing solid product. This prevents slow degradation and color changes that would otherwise flag uncertainty in critical steps. We work with logistics partners that understand the sensitivities of oxygen- and moisture-sensitive goods, ensuring that each batch arrives as close to pristine as when bottled. Regular shipment monitoring and retained samples give every customer the chance to ask for direct retest; if the COA on arrival doesn’t match expectations, our open challenge process addresses the issue. Off-specification product is not forced into the market—we would rather recall than risk reputation or cause lost time in someone’s research program.
We see more requests for not just pure compounds, but tailored ones—specific isotope labeling, controlled particle size, or even parallel delivery with similar halogenated pyridines. Direct fluorination poses unique challenges compared to other halogen substitutions, demanding closer control over exotherms and side-product formation. Compared with its chloro and bromo counterparts, 2-Fluoro-3-Nitropyridine offers a distinct reactivity and a subtler electronic influence on the ring. Synthetic chemists usually choose the fluoro variant when a slightly less reactive leaving group gives them an advantage or a different downstream transformation. This shows up, for example, in palladium-catalyzed coupling screens or nucleophilic aromatic substitutions where tuning reactivity makes the difference between yield and overreaction.
We hear from buyers who used to rely on external traders or resellers, running into sudden supply disruptions or inconsistent batches. Outsourced products sometimes bring inconsistent specifications, questionable lot histories, or delayed support. Manufacturing in-house, starting from raw pyridine derivatives, enables both traceability and fast troubleshooting. We keep all production inside the same plant, document each stage and store analytical data so that repeated orders match prior ones. If an industrial order needs matching to an archival standard, we pull samples from retained inventory, verifying by NMR or GC-MS directly against the original shipment. This level of responsiveness only comes by controlling production within a single operation—not farming out stages and losing sight of process control.
Making specialty aromatics in scale calls for more than just cost management. Industry expectations have shifted toward reduced waste, solvent recycling, and lower energy usage per kilogram made. Our process runs with minimal venting and solvent loss, closed-loop recovery for organics, and heat integration between exothermic and endothermic stages. All liquid effluents go through internal treatment before leaving the site. By analyzing stepwise yields and optimizing waste streams, we keep environmental impact under control and pass along cost savings while strengthening compliance. Long gone are the days when process waste quietly disappeared out of sight—regulatory review and social responsibility make every aspect of resource use open for scrutiny. Green chemistry improvements—like solvent switching, byproduct recovery, and neutralization system upgrades—add value for customers committed to sustainable sourcing.
Our technical team gets involved upstream, helping partners work out the specifics of reactivity or compatibility in new synthetic routes. We share spectral data, literature precedents, and even process notes under confidentiality. Sometimes a customer’s process calls for a variant grade—lower or higher water content, specific particle size for filtration, or adjusted solvent content for blending. Working alongside their chemists, we trial-process small lots, iterating in real time until clear success metrics are reached. That collaboration keeps the flow of feedback alive, which then leads directly to process upgrades and final product compliance.
Accurate product assessment depends on reliable analytics. Over the years, analysts have learned which spectroscopic signals matter most for each synthetic target. Nitro and fluoro substituents each come with their characteristic fingerprints, but they can interfere with trace impurity identification. Our laboratory processes hundreds of routine samples a month; sample mislabeling, operator error, or instrument drift can creep in no matter how carefully we staff the work. Recognizing these and systematizing recalibration schedules keeps batch variability contained. Our in-process analyses run parallel with traditional end-point checks, so that nothing leaves the facility without matching pre-release benchmark data. Any discrepancy leads to full review—not a simple re-test—making it difficult for an outlier to slip through.
A synthetic chemist evaluating 2-Fluoro-3-Nitropyridine typically compares it with closely related isomers or different halogenated variants. The 2-chloro or 2-bromo species demonstrate certain reactivity differences. Bromo derivatives tend to show higher leaving group ability, altering cross-coupling kinetics. Chloro provides robustness but often needs harsher conditions for substitutions. Fluoro occupies a middle ground, offering a balance between rate and selectivity, which translates to higher overall yield under gentle conditions. Our material, subjected to batch-traceable purity and impurity profiling, delivers this nuanced reactivity profile batch after batch. Feedback confirms that less work goes into tailoring conditions or losing yield due to batch variation; operations run smoother and workup times shrink.
Automated plants always look impressive, but experience in synthesis, maintenance, and trouble-shooting at the floor level contributes fundamentally to reliable products. Long-tenured process chemists know the small signs—timing of color change, viscosity shifts, or gas evolution—that never show up in production guidelines but make or break a synthesis. We draw on this expertise for both process improvement and for training new hires. Supporting people with the right equipment and giving them control over both documentation and reporting means practitioners catch errors and shortfalls early. Every product bottle reaching a client carries their handiwork, and their pride shows in the frequency of repeat orders and positive technical feedback.
Customer confidence never comes from a slick web page or glossy catalog. We support trust by retaining batch samples and keeping electronic and paper data at hand for every lot shipped. If a concern develops weeks or months after receipt—a process anomaly, questionable melting point, or odd byproduct—customers can request comparative analysis against retained material. We solve the problem by providing full analytical reports on both production and retention samples, referencing spectral originals to underscore consistency. Open transparency beats blanket assurances; nothing frustrates a customer more than an evasive answer when their timeline and budgets are on the line.
Raw demand patterns fluctuate as new research foci emerge. As appetite for certain classes of heterocycles rises and falls, we dynamically adjust production schedules and maintain buffer stocks. Sometimes this means dedicating lines to higher throughput or splitting a plant run between multiple derivatives. Repeated real-world use of the same lot in different processes brings back unique learnings, some of which feed directly into the next batch’s process change. By never resting on a “good enough” lot, our teams push for improved handling, faster workup, and tighter control.
Storage impacts product lifetime and downstream success. By ensuring all containers reflect real-world usage—drum wall thickness, sealant choice, liner-material compatibility with fluorinated aromatics—we cut back on cross-contamination. Every returned empty drum gives us information. Dosage forms, sensitive formulations, and pilot programs highlight where handling practice differs from spec sheets. In return, we adapt shipping, labeling, or even upstream purification processes to remove sources of error and hassle. Manufacturing usable chemistry is not about a single transaction but a cycle of adaptation—built on listening, direct engagement, and pride in reliable output.
In almost every case, a chemist reaches for this compound to remove uncertainty, not invite new complications. Our investment in equipment, analytical capability, and people means every order supports the scale and ambition of modern synthesis—from gram scale to hundreds of kilograms. Transparency, experience, and pride in production standards mark our difference and make complex chemistry simpler in practice.