2-pyridinecarboxaldehyde, 3-chloro-

    • Product Name: 2-pyridinecarboxaldehyde, 3-chloro-
    • Chemical Name (IUPAC): 3-chloropyridine-2-carbaldehyde
    • CAS No.: 873-74-5
    • Chemical Formula: C6H4ClNO
    • Form/Physical State: Liquid
    • Factroy Site: No.968 Jiangshan Rd., Nantong ETDZ, Jiangsu, China
    • Price Inquiry: sales7@bouling-chem.com
    • Manufacturer: Nantong Acetic Acid Chemical Co., Ltd.
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    Specifications

    HS Code

    822233

    Cas Number 32728-80-8
    Iupac Name 3-chloropyridine-2-carbaldehyde
    Molecular Formula C6H4ClNO
    Molecular Weight 141.55
    Appearance Pale yellow to yellow liquid
    Boiling Point 235-238°C
    Melting Point -
    Density 1.321 g/cm3
    Solubility In Water Slightly soluble
    Flash Point 93°C
    Smiles C1=CC(=C(N=C1)C=O)Cl
    Inchi InChI=1S/C6H4ClNO/c7-5-2-1-6(4-9)8-3-5/h1-4H
    Refractive Index 1.595
    Storage Conditions Store at room temperature, tightly sealed

    As an accredited 2-pyridinecarboxaldehyde, 3-chloro- factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 100 grams of 2-pyridinecarboxaldehyde, 3-chloro-, tightly sealed with a screw cap, chemical label attached.
    Container Loading (20′ FCL) **Container Loading (20′ FCL):** Loaded in 200 kg drums, 80 drums per 20' FCL, securely packed for safe international transport of 2-pyridinecarboxaldehyde, 3-chloro-.
    Shipping **Shipping Description:** 2-Pyridinecarboxaldehyde, 3-chloro- is shipped in tightly sealed containers, protected from moisture and extreme temperatures. It is classified as a hazardous chemical, requiring appropriate labeling and safety documentation. Shipping complies with relevant regulations for hazardous substances, and carriers must ensure secure handling to prevent leaks, spills, or accidental exposure during transit.
    Storage 2-Pyridinecarboxaldehyde, 3-chloro- should be stored in a tightly sealed container under a dry, well-ventilated environment, away from heat, direct sunlight, and incompatible substances such as strong oxidizers. Keep at a cool, stable temperature, typically below 25°C. Store in a designated chemical storage area, properly labeled, and protected from moisture to avoid degradation or hazardous reactions.
    Shelf Life 2-Pyridinecarboxaldehyde, 3-chloro- typically has a shelf life of 2 years when stored in a cool, dry, tightly sealed container.
    Application of 2-pyridinecarboxaldehyde, 3-chloro-

    Purity 98%: 2-pyridinecarboxaldehyde, 3-chloro- with 98% purity is used in pharmaceutical intermediate synthesis, where it ensures high yield and product consistency.

    Molecular weight 157.56 g/mol: 2-pyridinecarboxaldehyde, 3-chloro- of molecular weight 157.56 g/mol is used in heterocyclic compound design, where precise molecular control enhances structure-activity relationships.

    Melting point 28-31°C: 2-pyridinecarboxaldehyde, 3-chloro- with a melting point of 28-31°C is used in organic ligand preparation, where controlled phase transition improves crystallization processes.

    Stability temperature up to 80°C: 2-pyridinecarboxaldehyde, 3-chloro- stable up to 80°C is used in chemical research reactions, where thermal robustness enables complex syntheses.

    Low water content (<0.5%): 2-pyridinecarboxaldehyde, 3-chloro- with water content below 0.5% is used in moisture-sensitive reactions, where minimal hydrolysis risk ensures reaction efficiency.

    Analytical grade: 2-pyridinecarboxaldehyde, 3-chloro- of analytical grade is used in high-precision analytical assays, where reagent purity aids in reproducible quantification.

    Particle size <50 microns: 2-pyridinecarboxaldehyde, 3-chloro- with particle size under 50 microns is used in fine chemical formulations, where uniform dispersion optimizes reaction kinetics.

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    Certification & Compliance
    More Introduction

    Introducing 2-Pyridinecarboxaldehyde, 3-Chloro-: From Our Plant Floor to Your Production Line

    Understanding the Product from a Chemist’s View

    2-Pyridinecarboxaldehyde, 3-chloro- stands out among pyridine derivatives for its unique chemical footprint and critical value in a wide range of industries. Over the years, our direct experience transforming specialty chemicals from concept to final product has highlighted the practical benefits and challenges of synthesizing this specific molecule. In our plant, this compound has consistently demonstrated a higher demand among pharmaceutical, agrochemical, and specialty material manufacturers searching for a reliable ring system with a reactive aldehyde group at the 2-position and a chlorine atom precisely at the 3-position. This careful substitution makes a world of difference in downstream reactions—something our chemists and engineers have discussed again and again at the bench.

    The backbone of this molecule, the pyridine ring, serves as a proven platform for building complexity and achieving functional diversity in organic synthesis workflows. The 3-chloro substituent brings a strong electron-withdrawing effect, which we’ve seen directly influence the reactivity of the aldehyde group at the 2-position. This unique interplay shifts the chemical behavior compared to its non-chlorinated cousins or derivatives with halogen atoms at other positions. Day-to-day, our team uses the latest analytical tools to verify batch-to-batch consistency in electronic structure, purity, and physical state—delivering the repeatability that process chemists expect at scale.

    Getting the Chemistry Right: From Reactor to Purification

    Manufacturing 2-pyridinecarboxaldehyde, 3-chloro- at quality standards suitable for pharmaceutical or fine chemical development isn’t straightforward. The process starts with the selection of high-grade raw materials. Our plant has spent years refining the oxidative chlorination and formylation steps to avoid undesired byproducts, achieving reliable isomer selectivity. Technical teams regularly calibrate reactor conditions, control temperature ramps, and manage reagent addition rates with precision. The resulting crude product then moves through a sequence of extractions, washes, and distillations or recrystallizations, depending on the targeted end-use specifications. It’s this attention to the day-to-day operational details that customers tell us sets our manufacturing approach apart from resellers or generic suppliers.

    In terms of specifications, we routinely produce lots with high purity levels—typically over 98 percent as confirmed by advanced HPLC and NMR methods. Physical appearance, melting point, moisture content, and residual solvent levels are carefully monitored. We know that small differences here can produce wide chemical and process variability downstream, which matters deeply for pharmaceutical synthesis or the preparation of agrochemical intermediates. Customers often request custom specifications, and our plant team has a track record of adapting process parameters or downstream handling protocols to deliver to unique project needs. Flexibility, backed by deep technical know-how, makes a genuine impact over the course of a product development cycle.

    Where Do the Key Advantages Show Up in Real-World Work?

    Process chemists and production managers describe specific benefits of working with 2-pyridinecarboxaldehyde, 3-chloro- directly sourced from a manufacturer like us. The reactivity balance created by the chloride and formyl groups enables targeted modifications or condensations in the pyridine ring—especially in multistep pharmaceutical or crop-protection compound syntheses. Our technical partners often focus on using this compound for forming heterocyclic rings, preparing ligand systems, and constructing more elaborate molecular scaffolds. In many of these cases, they require both reactivity and selectivity that other, simpler pyridinecarboxaldehydes don’t consistently supply.

    This difference shows up in yield reliability, impurity profile, and process economy. Compared to 2-pyridinecarboxaldehyde lacking the 3-chloro substituent or bearing other halogen patterns, the 3-chloro variant consistently leads to higher yields in certain routes. Frequent feedback from customer R&D teams points to cleaner downstream reactions and better compatibility with key condensation or substitution reagents. Process troubleshooting is frequently simpler, saving critical time during scale-up and validation work in pharmaceutical and custom chemical projects. By staying close to production realities and process data, we pass on not just a molecule, but also peace of mind and documented reproducibility.

    Real-World Handling and Integration into Customer Processes

    Experience on the ground in chemical production tells us that the difference between a smooth or problematic project outcome often starts with supplying the right chemical grade. Practicality counts for more than abstract discussions. Many partners appreciate granular batch data, technical documentation, and on-the-ground insights from our applications team. The specific melting and boiling points, level of residual water, and fine-tuned impurity controls all factor directly into equipment setup, waste management, and quality reporting at the customer’s site. We keep our doors open—welcoming discussions with technical managers about transfer protocols, compatibility studies, and customized storage solutions.

    Due to the molecule’s pronounced reactivity, our own storage process includes humidity and temperature controls to preserve integrity from production floor to shipping dock. Customers have shared stories of cheaper, reseller-sourced product oxidizing or suffering from decomposition in less-than-ideal shipping containers. By overseeing packaging, transportation, and delivery best practices ourselves, we’ve headed off these problems. This real-world approach, grounded in years of hands-on distribution, helps keep molecules stable, potent, and clean upon arrival—ultimately protecting your process timelines and regulatory compliance outcomes.

    Comparing to Other Pyridinecarboxaldehyde Grades and Chlorinated Analogs

    Discussions with product developers and medicinal chemists often return to the challenge of picking the right variant for their syntheses. A non-chlorinated analog, like 2-pyridinecarboxaldehyde, functions as a foundational building block, but it lacks the enhanced reactivity and selectivity introduced by the 3-chloro group. Chlorination, specifically at the third position, brings a shift in electronic density. Through our own work at the bench and in in-line analytics, these changes result in sharper condensation behavior and a more defined path to further functionalization—features that studies and in-plant testing have borne out.

    The choice between 3-chloro-, 4-chloro-, or 5-chloro- derivatives isn’t just academic; it determines yield, waste load, and process cost for each transformation. 3-chloro-2-pyridinecarboxaldehyde maps well onto a broader repertoire of cross-coupling and cyclization reactions, based on how its structure interacts with typical reagents. We see this clearly in our pilot trials and in collaborative developments with partners in the pharmaceutical and crop-protection fields. From our experience, the 3-position chloride opens up options, especially in Suzuki and Buchwald–Hartwig coupling chemistry, with a cleaner byproduct profile compared to the 4-position or other ring substitutions. This direct feedback from dozens of large and small scale syntheses over recent years shapes our belief in its value.

    Regulatory, Compliance, and Documentation from a Manufacturer’s Perspective

    Operating as a direct manufacturer means regulatory diligence falls squarely on our shoulders. We supply full analytical test results, certificates, traceability reports, and regulatory support for all shipments of 2-pyridinecarboxaldehyde, 3-chloro-. Our regulatory affairs group works closely with global partners to meet expectations for GMP, ISO standards, and region-specific notifications where applicable. Audits and documentation reviews by customer teams have prompted real improvements in our in-plant documentation, tracking, and risk review systems. Experience has proved that traceable supply chains paired with responsive technical support mitigate most compliance surprises—something resellers or indirection sources can’t provide with the same immediacy.

    Customers with advanced environmental, health, and safety requirements count on us for transparent handling records and rapid answers about handling, waste disposal, and risk management. We don’t cut corners or allow ambiguity in how we present compositional data or recommended safeguards. Instead, we welcome open technical dialogue, often running in-house workshops or Q&A sessions upon request. Safety teams and production chemists alike have benefited from direct access to our process experts, which builds a foundation of trust essential to advancing technical partnerships.

    Sustaining Product Value Through Transparency and Technical Support

    Any chemical can be priced, but the value customers experience goes far deeper than the numbers. We stand behind 2-pyridinecarboxaldehyde, 3-chloro- with a commitment to transparency, focused on providing robust batch documentation, accessible supply chain details, and a steady line of communication between our technical team and customer R&D. Project delays, synthesis hiccups, or regulatory reviews rarely fit a nine-to-five schedule, so our teams stay accessible and involved until technical questions are answered and integration challenges resolved. This approach, honed through daily plant operations and years of industry partnership, keeps projects moving and reduces preventable setbacks.

    Looking back at projects over the years, it’s clear that early engagement between manufacturer and end-user group sets the tone for smoother technical outcomes. Our best case studies grew out of direct dialogue—sometimes face-to-face, sometimes over shared data—with customers experimenting with this compound for novel applications, whether that means new generation pharmaceuticals or driven crop protection agents. Shared results, real troubleshooting, and honest feedback push us to keep refining both product and service. We know the difference this makes because regular process reviews and technical improvement initiatives are built into our everyday workflow. Whether scaling from kilos to tons or running iterative pilot programs, this grounded knowledge leads to better chemistry and greater business success on both sides of the relationship.

    Applications Shaped by End-User Experience

    Our manufacturing perspective has made it clear that 2-pyridinecarboxaldehyde, 3-chloro- enables chemistry that other pyridinecarboxaldehyde variants simply can’t deliver. Its use in pharmaceutical synthesis remains a core application. Medicinal chemists repeatedly turn to this compound as a key intermediate for constructing heterocyclic frameworks that often end up in final drug candidates. Structural versatility, due to the reactive balance between the aldehyde and chlorine functionalities, makes possible the streamlined preparation of specialized ligand sets, condensation products, or coupling partners needed by modern R&D scientists.

    Manufacturers in the field of crop protection tap into the structural features of this compound to assemble active compounds for herbicides or fungicides. Our direct clients point to its ability to short-circuit otherwise lengthy synthetic routes—reducing the number of steps, simplifying purification strategies, and boosting overall process efficiency. The selective reactivity at the 2- and 3-positions directly influences biological activity of finished products, making this compound particularly attractive for teams engineering new agrochemical scaffolds or improving the pharmacokinetic stability of specialized products.

    Specialty chemical producers leverage 2-pyridinecarboxaldehyde, 3-chloro- as a starting point for more complex ligands used in process catalysis or as advanced intermediates for electronic materials. In these sectors, reproducibility and batch purity are non-negotiable; even trace synthesis byproducts can undermine downstream effectiveness or product yield. From discussions with process engineers and lab staff, we have shaped our manufacturing to support these exacting requirements. What’s rewarding for us as manufacturers is seeing robust documentation and direct technical support translate into higher process uptime and increased customer confidence—true value that extends far beyond the molecular structure alone.

    Technical Challenges and Solutions—Drawn from the Manufacturing Floor

    Producing and supplying a specialty intermediate like 2-pyridinecarboxaldehyde, 3-chloro- brings technical hurdles that we continually address through process improvement and technical innovation. During early projects, batch-to-batch chlorination variability created headaches for both our team and early customers. In response, we invested in tighter process analytical controls, introduced inline monitoring of key reaction parameters, and modernized our quality oversight. Today, our ability to trace every batch from raw material intake to final shipment ensures integrity, supports regulatory filings, and backs up product claims with cold, hard data.

    Customers face their own technical questions—integration with proprietary synthesis routes, sensitivity to specific impurities, or the risk of side reactions in delicate downstream processes. Our applications team regularly collaborates with customer R&D to troubleshoot such issues, from adjusting storage conditions to recommending compatible solvents or process tweaks that match the unique needs on the customer’s pilot line or full-scale operation. We treat every feedback loop as a way to further hone both our product and manufacturing approach, rather than seeing quality control as a one-way street. Partnered technical troubleshooting is, in our view, what separates effective manufacturers from commodity sources.

    Packaging plays a bigger role than many outsiders realize. Over the years, we’ve field-tested different container types for maintaining product quality under diverse shipping conditions—especially for longer export lanes or challenging climates. Secure, moisture-tight drums, lined containers, and robust secondary protective measures have all become standard after hard-won lessons from real shipments. Customers who have experienced loss-of-quality issues with alternative suppliers stress the value of direct coordination with a plant that understands how fine chemical shipping affects the realities of daily lab work and process chemistry.

    The Human Element—Why Manufacturer Perspective Matters

    A direct connection between manufacturer and user brings a clearer exchange of both technical and practical realities. Having managed full production campaigns, run technical workshops, and supported hundreds of customer integrations, our team knows the difference that deep product insight makes. Questions come up that simply can’t be answered with supplier boilerplate or generic sales lines. Whether it’s advice on tailored impurity thresholds, help with method development, or tips for boosting long-term product shelf life, our chemists and engineers stand ready to share practical, actionable knowledge gained through years on the manufacturing floor.

    Customer-focused manufacturing is not a slogan—it’s a way of working shaped by decades of partnership, technical dialogue, and shared problem-solving. As we continue refining the quality and application effectiveness of 2-pyridinecarboxaldehyde, 3-chloro-, we do so with a commitment to practical value, technical transparency, and unbroken communication. The trust we have built—one batch at a time, one project milestone at a time—strengthens every collaboration and amplifies the impact of our chemical expertise on the industries we serve.