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HS Code |
312765 |
| Iupac Name | 3,5-dichloro-4-oxo-1-pyridineacetic acid |
| Molecular Formula | C7H5Cl2NO3 |
| Molecular Weight | 222.03 g/mol |
| Cas Number | 116328-40-6 |
| Appearance | White to off-white powder |
| Melting Point | 180-182°C |
| Solubility In Water | Slightly soluble |
| Smiles | C1=C(C(=O)C(=CN1)CC(=O)O)Cl |
| Purity | Typically ≥98% |
| Storage Temperature | 2-8°C |
| Synonyms | 3,5-dichloro-4-oxo-pyridine-1-acetic acid |
As an accredited 3,5-dichloro-4-oxo-1-pyridineacetic acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A 25-gram amber glass bottle with a tamper-evident cap, labeled "3,5-dichloro-4-oxo-1-pyridineacetic acid, for laboratory use only." |
| Container Loading (20′ FCL) | 20′ FCL loads 12MT of 3,5-dichloro-4-oxo-1-pyridineacetic acid, packed in 25kg fiber drums with inner linings. |
| Shipping | 3,5-Dichloro-4-oxo-1-pyridineacetic acid is shipped in tightly sealed containers, protected from moisture and light. It requires labeling according to hazardous material regulations, and typically ships with appropriate documentation. Handling procedures recommend transport at ambient temperature with secondary containment to prevent leaks or contamination during transit. Avoid extreme temperatures and physical damage. |
| Storage | 3,5-Dichloro-4-oxo-1-pyridineacetic acid should be stored in a tightly sealed container, away from moisture and incompatible substances such as strong bases and oxidizers. Keep it in a cool, dry, and well-ventilated area, protected from direct sunlight. Proper labeling and adherence to safety protocols are essential. Store at recommended temperatures, typically below 25°C (77°F), to maintain stability. |
| Shelf Life | 3,5-Dichloro-4-oxo-1-pyridineacetic acid typically has a shelf life of 2 years when stored in a cool, dry place. |
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Purity 98%: 3,5-dichloro-4-oxo-1-pyridineacetic acid with a purity of 98% is used in pharmaceutical synthesis, where it ensures high-yield intermediate formation. Melting point 170°C: 3,5-dichloro-4-oxo-1-pyridineacetic acid with melting point 170°C is used in solid-state drug formulation, where it provides thermal stability during processing. Molecular weight 220.03 g/mol: 3,5-dichloro-4-oxo-1-pyridineacetic acid with molecular weight 220.03 g/mol is used in analytical reference standards, where it guarantees accurate quantitative analysis. Stability temperature 120°C: 3,5-dichloro-4-oxo-1-pyridineacetic acid with stability temperature 120°C is used in chemical manufacturing pipelines, where it retains its integrity under mild heat. Particle size <10 μm: 3,5-dichloro-4-oxo-1-pyridineacetic acid with particle size less than 10 μm is used in fine chemical blending, where it delivers uniform dispersion in mixtures. Water content <0.5%: 3,5-dichloro-4-oxo-1-pyridineacetic acid with water content less than 0.5% is used in moisture-sensitive reactions, where it prevents hydrolysis and side reactions. HPLC assay ≥99%: 3,5-dichloro-4-oxo-1-pyridineacetic acid with HPLC assay of at least 99% is used in research-grade compound libraries, where it maintains reproducibility of experimental results. |
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Every day in our plant begins before sunrise, with production teams checking reactors and analytical chemists reviewing data from batches that finished cooling overnight. Years of hands-on work and thousands of reaction hours have made us appreciate each molecule for its quirks, opportunities, and practical limits. No matter how digital the technology gets, the difference between a solid batch and a costly failure can come down to managing details only possible after years of making the compound with your own hands. This is especially true for 3,5-dichloro-4-oxo-1-pyridineacetic acid—a building block in chemical synthesis that, in our experience, truly defines what separates a reliable manufacturer from those simply moving paperwork.
Think of 3,5-dichloro-4-oxo-1-pyridineacetic acid not as just another chemical but as a specialty intermediate where reliability and purity can determine the outcome of entire downstream projects, especially in pharmaceutical research and agrochemical development. We’ve seen first-hand that even slight inconsistencies in moisture content, trace impurities, or off-spec crystal forms can ruin months of work. Our blend of equipment—ranging from glass-lined reactors up to 5,000L to precise HPLC and GC analysis—has taught us what really matters: control from synthesis to final packing. Years of running this process tell us that model numbers mean little to a chemist facing a crystallization problem or a formulation setback; what they need is a material that behaves the same, every single lot.
We produce 3,5-dichloro-4-oxo-1-pyridineacetic acid consistently at pharmaceutical-intermediate grade levels. This means our teams take extra steps during synthesis, solvent removal, and drying to keep impurities in check. Batch documentation fills cabinets, and cross-checks prevent unaccounted-for variations. We’ve stayed away from stretching purity claims for marketing; instead, we focus attention on keeping the HPLC purity above 99% where endpoint reactions in downstream synthesis demand clean starting points. Real production experience—no matter the scale—shows that stability also counts. Our product keeps its properties in protected packaging, locked against moisture and oxygen, so what leaves our plant matches what you see in the lab.
One common question from our direct customers: How does our material perform when scaling pilot projects to hundreds of kilos? We hear concerns about consistency all the time, especially with scale-up batches. Our operators follow the same validated protocols for each step: temperature ramps, agitation rates, filtration methods. There’s no parallel here with trading houses who never see a reactor, because every batch has been checked by the same eyes on the shop floor. Even mundane choices—packing materials, drum liners, label adhesives—have been swapped based on mistakes and lessons learned in real-world usage. Hearing back from customers about process interruptions or unexpected residues drives these changes. Over the years, modifications born from this feedback have become routine: tighter specification sheets, more samples sent for independent QC, and batch archives to troubleshoot problems when things go sideways.
The backbone of our chemical manufacturing isn’t raw horsepower. It’s the experience to recognize that some intermediates—like this one—must do more than check off a list of minimum requirements. In our operation, the demand for this product rose with the expanding reach of pyridine derivatives across drug discovery and crop protection. Every API pipeline fixed upon these heterocyclic motifs deepened our investment in batch integrity and supplier transparency.
In practice, process researchers use 3,5-dichloro-4-oxo-1-pyridineacetic acid as a central synthon in the preparation of more complex molecules. Many of our partners target pharmaceutically active compounds, where even minute impurities can block regulatory filings. We regularly talk with chemists shepherding projects through clinical or field trials, who explain how a given impurity profile—sometimes undetectable without advanced chromatography—can invalidate test results or prompt regulators to demand redos. Those conversations shaped our routines: holding finished goods longer to allow fuller testing, monitoring for environmental contaminants, and digging into root causes whenever customer analytics flag something out of trend.
In agrochemicals, where volumes run higher and price pressure kicks in, consistency still holds weight. A batch gone off-spec means scrambling to adjust downstream formulations, a drain on time for both supplier and developer. Years back, an instance of subtle batch-to-batch difference showed up during large-scale herbicide development. The learning: do not rely on margin-of-error assumptions when a few tenths of a percent matter for shelf stability. That day, our standard protocols gained added equipment calibrations and second-round sample retentions.
What truly distinguishes manufacturers—those who genuinely invest in the daily creation of chemistry—from other channels can’t be reduced to certificates or data sheets. Our core is the accumulated experience of scaling from grams to tons without losing sight of the quirks each lot brings. We’ve tailored our material handling to ensure the acid maintains proper flow and ease of dissolution, responding directly to on-site formulation trials where clumping or slow dissolution has caused bottlenecks. This attention comes straight from years of opening bags, checking for caking, trying to add too-dry or too-wet acids into small-scale reactors, and recalling what methods led to headaches down the line.
For customers who walked their way through method development and pilot batches themselves, subtle changes matter: the way a solid flows in an automated line, the response of the material to solvents, reactivity under mild or challenging conditions. We ship fresh product as promptly as schedules allow, storing under controlled conditions to keep moisture and airborne contaminants at bay until the shipment goes out. Rejecting batches that just scrape by the specifications sheet is part of our routine, not an exception.
As manufacturers, we learn quickest from the sharp end of the process. Mistakes cost time and trust. One batch with surface discoloration flagged by a QC chemist prompted upgrades to our milling and sieving steps. Customers brought up filtration rates in scale-up productions; our refinements to crystal size distribution and filter cake handling came from their field data. These changes didn’t emerge from abstract “quality improvements” but from actual instances where suboptimal batches risked application deadlines or forced reworks.
The dialogue with R&D customers never ends. They call when an impurity shows up; they ask for samples pulled at specific time points. Our on-site teams adjust drying cycles, rotate between different grades of solvents, or swap filter cloths in response. The changes drive our operators to update logs and sampling schedules. We track every incident—even the minor ones—because every overlooked variable has real cost implications later on. Over the years, this open-loop system closed the gap between plant floor and end-user lab, an advantage only available to those deeply invested in actual production.
Working with a basket of pyridine intermediates, the shop-floor learning becomes clear: even closely related compounds such as 3,5-dichloropyridine-4-carboxylic acid or 4-oxo-3,5-dichloropyridine-1-acetic acid can behave quite differently at scale. The presence of the 4-oxo group and the positioning of the acetic acid side chain raise unique process considerations. The solubility profile diverges from other dichloro pyridine acids, which shapes how users run extractions or dissolutions. Recrystallization and drying efficiency respond directly to these subtle distinctions. Field feedback: a misstep in assuming interchangeability leads to wasted material and reruns.
From our records, some customers tried to swap in similar dichloro pyridine acids only to face challenges: lower yields in stepwise reactions, color differences, tougher purification. Our teams explained how compound-specific reactivity affects multi-step synthesis, especially for routes involving cross-coupling, amidation, or derivatization. Storing similar compounds together during scale-up can create confusion on lines, so all shipments leave our warehouses with clear, color-coded labeling and supporting documentation. We have seen projects near completion get derailed by misidentified inventory—a reminder that distinctness matters at every link in the supply chain.
We have also monitored stability trials side-by-side. 3,5-dichloro-4-oxo-1-pyridineacetic acid consistently resists degradation under typical controlled storage conditions, making it less prone to develop off-odors or discoloration over months in storage, compared to analogs with less resistant scaffolding. Over repeated uses, its reactivity profile proves conducive for tailored functionalizations required in specialty chemical and pharmaceutical space.
Through working with kilo to multi-ton scale, our teams remain alert to safety, both in the plant and during transport. The handling precautions we use—protective respiratory gear, lined containment during packaging—do more than satisfy audits. Over years, these precautions became standardized responses to real-life incidents: a solid cake breaking during a transfer, material forming dust clouds that clogged local ventilation. Experience prompts us to apply real-world logic instead of simply checking off forms. The teams’ attention during every operation—visual inspection, ambient monitoring, and post-cleanout procedures—reflects lessons learned batch by batch.
Customers who asked about storage quickly moved from theory to practical reality. We’ve worked through scenarios where temperature and humidity controls failed during shipment and have replaced tons of material as a result. These situations drove upgrades to packaging and new relationships with logistics providers offering better track-and-trace capabilities. The right packaging prevents cross-contamination, limits breathing loss, and reduces waste from caking or clumping. Every step from bulk packaging to DRUM labeling uses materials vetted in our own storage vaults, not picked from a catalog. Process routines, built by rounds of trial and improvement, push us to communicate changes directly—updating customers who run sensitive formulation protocols or store lots for long intervals.
Operators at downstream firms have reported the impact that apparently “minor” differences in particle size and dryness can have on their equipment—slowed feeding, uneven dissolution, or clumping in automated filling machines. Working together with their plant managers, we have responded by adopting tighter particle specifications, collaborative plant visits, and on-site troubleshooting. The learning is constant, but only those present at every batch can sieve out which parameters truly matter and which are just theoretical fine points.
After years in the industry, we’ve seen the gap between manufacturers and non-producing vendors widen. Only through the discipline of actual batch preparation and finishing can you know where the fault lines run. Trust must live in repeat results and how issues get resolved. Our daily routines—held together by decades of experience—promise traceability, batch integrity, and open technical support. Explaining how a small impurity or modest lot-to-lot variance might arise (and then fixing it for future runs) sets us apart from those who never touch the material themselves.
Regulations and audits anchor this approach. Our internal routines grow out of compliance with GMP, ISO, and Responsible Care standards, but above all, from practicing the standards on site. Regular inspections, full inventory logging, and personnel training mark tangible investments in batch reliability. Only through repetitive, hands-on manufacturing does a team learn the exceptions to the rules, those spots where more attention is required—not as an afterthought, but as central to the work.
Down the line, the market for 3,5-dichloro-4-oxo-1-pyridineacetic acid will keep evolving. Regulatory demands will tighten, requiring extended impurity profiling and traceability even for intermediate products. Shipping and logistics pressures—material availability, climate considerations, and geo-political events—force every manufacturer to look ahead. Solutions in this context do not arrive as “innovation” slogans, but as steady, plain changes. A while back, a disruption in the shipping corridor led us to identify backup packaging providers, new sea routes, and alternative storage partners to guarantee continued delivery, even under stress.
Our direct presence in the production world keeps us tuned to where future gaps may appear. We have begun piloting improvements in process data tracking—linking in-line process analytics to cloud logs accessible by customer support, allowing for easier troubleshooting in real-time by both sides. Continually refining feedback loops between R&D sites and manufacturing can prevent long delays for specification changes and improve adaptability.
We see chemical manufacturing as a problem-solving discipline. If a customer’s process flags trace elements, we don’t rely on generic assurances. Instead, we re-examine the raw materials, re-test retained samples, and check the process logs. Overhauling a crystallization process because of a persistent residue isn’t a marketing move but a necessity for continued partnerships.
Working in this field, we witness how every “small” fix—whether in shipment protection, analytic methodology, or operator instruction—pays out across batches and seasons. We have no illusions about the complexity of chemical supply chains. Manufacturers who have grown through adversity and correction wind up delivering materials that laboratories trust, not because of their brochures, but from repeated direct satisfaction from the end-users’ hands.
Years of hands-on work remind us that the difference separating successful launches from costly mistakes often comes down to material realness—specification sheets only tell the beginning of the story, not its end. We support partners from project conception to process scale-up to regulatory interactions. There is never a single “right” solution in chemical manufacturing, only progress marked by adaptation, rigorous documentation, honest feedback, and continual upgrading of both material and routine. Our experience with 3,5-dichloro-4-oxo-1-pyridineacetic acid builds on that foundation. The end result—trusted, on-spec product batch after batch—continues to cement long-term partnerships and drive development in some of the most challenging and rewarding fields chemistry has to offer.