|
HS Code |
788939 |
| Chemical Name | Phenol, 2,6-Dichloro-4-Fluoro- |
| Cas Number | 17490-24-5 |
| Molecular Formula | C6H3Cl2FO |
| Molecular Weight | 181.99 g/mol |
| Appearance | White to off-white solid |
| Boiling Point | 235-237°C |
| Melting Point | 51-53°C |
| Density | 1.53 g/cm3 |
| Solubility In Water | Slightly soluble |
| Flash Point | 109°C |
| Synonyms | 2,6-Dichloro-4-fluorophenol |
| Pubchem Cid | 11494582 |
As an accredited Phenol, 2,6-Dichloro-4-Fluoro- factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Phenol, 2,6-Dichloro-4-Fluoro- is supplied in a 100-gram amber glass bottle with a tamper-evident cap and chemical safety labeling. |
| Shipping | **Shipping Description:** Phenol, 2,6-Dichloro-4-Fluoro- should be shipped in tightly sealed containers, clearly labeled, and protected from light, moisture, and physical damage. Transport as a hazardous material according to local, national, and international regulations. Store and ship at ambient temperature, ensuring compatibility with other chemicals and using appropriate secondary containment to prevent leaks or spills. |
| Storage | Phenol, 2,6-Dichloro-4-Fluoro- should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from incompatible substances like strong oxidizers and bases. Keep away from direct sunlight and sources of ignition. Store at room temperature and protect from moisture. Ensure all storage areas are clearly labeled and access is restricted to trained personnel. |
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Every finished product in a lab or industrial setting starts from reliable, well-characterized raw materials. Phenol, 2,6-Dichloro-4-Fluoro- stands as one of those essential intermediates shaping the modern chemical landscape. This compound, with the model name 2,6-dichloro-4-fluorophenol, brings together structural versatility and chemical stability. We speak from a position of hands-on synthesis and thousands of controlled batches, watching subtle details like melting point stability, batch-to-batch color, and purity variations that emerge in the real-world production environment. The use of two chlorine atoms paired with a fluorine substituent on the aromatic ring doesn’t just happen to distinguish this compound—it tunes its reactivity, solubility, and compatibility for complex downstream chemistry.
This material generally appears as a crystalline solid, white to pale yellow, but what looks like a minor hue difference often tells a story about purity and storage. Recrystallization, washing, and drying all impact not just visual appearance, but also downstream behavior—how smoothly it dissolves, how readily it couples or undergoes further chemistry, and whether byproduct fingerprints pop up on a chromatogram. As a manufacturer, we track those fingerprints closely, since a high-purity lot means less waste and tighter reactions for our industrial partners. Our internal standards push for impurities at trace levels, with GC and HPLC data reviewed regularly to keep us within target specifications.
Purity by GC commonly exceeds 98.5%. Chloride and fluoride substitutions tend to stabilize the molecule against unwanted oxidation and breakdown—a big advantage over less substituted phenols. Moisture pick-up affects storage and shipping, so we pack with minimal headspace and watch temperature swings during transit. Particle size can shift, especially coming off large-scale crystallization. We routinely sieve and check flow characteristics for customers using automation. Melting points, usually recorded near the literature value, act as a quick baseline, but real reliability shows up only after repeated scale-up and batch consistency. Each batch review relies on the methods we’ve refined, and our technical staff monitors for subtle shifts in spectra or reactivity.
Chemists and process engineers appreciate how this compound functions in both small molecule synthesis and polymer modification. Those two chlorine atoms, paired with fluorine, don’t just add weight. They guard the aromatic ring and open up selectivity options not found in more basic phenols. The industrial story here is about harnessing those features to construct agrochemical intermediates, prepare specialty dyes, or serve as a step in pharmaceuticals—especially where robust, stable intermediates allow for harsher reaction conditions without decomposition.
Our long-standing technical partnerships revolve around real-world data: scale-up case studies where a few grams in the lab scale up to several hundred kilograms per month. A common scenario involves coupling with heterocyclic amines, where unwanted ortho-position activation causes side reactions on standard phenols. Here, the blocking effect from the dichloro- and fluoro- groups provides cleaner conversion and less byproduct formation, saving downstream purification and higher overall yield. Another use leverages the compound’s electron poor ring for precise halogen exchange, especially where traditional chlorination or fluorination can skew ratios and create cost-intensive separations.
Choosing between mono-substituted, dichloro, trifluoro, or mixed halogenated phenols changes more than just theoretical properties—it sets the course for scale-up success or headaches down the road. Many custom synthesis partners start with ‘cheaper’ mono-halogenated phenols, only to find instability during storage or reactivity problems at pilot scale. The 2,6-dichloro-4-fluoro configuration locks down those reactive positions, cutting out most of the unwanted side products seen with less-protected systems.
Solubility also shifts. Our compound tends to dissolve in polar aprotic solvents, allowing for wider range of reaction design. In comparison, using 2,4-dichlorophenol or standard 4-fluorophenol may sound similar, but the absence of the extra halogens changes both melting point and solvent compatibility—not to mention the impact on process safety. For instance, 2,6-dichloro-4-fluorophenol emits less volatile organic odor than more basic phenols, and tends not to off-gas as strongly during distillation or drying steps.
Tracking stability through shelf-life studies, we see fewer degradation products and cleaner mass spectra even after months under ambient warehouse conditions. Colleagues in R&D know how problematic unpredictable degradation can be—leading to costly re-qualification, wasted labor, and even delays in regulatory filings. The physical stability of this material reduces those risks.
The presence of both chlorine and fluorine in the molecule calls for practical safeguards during handling. Our staff wears gloves and goggles during both wet processing and packaging steps, and we’ve learned firsthand how even trace airborne dust can cause irritation. In factory runs, dust suppression measures, tight transfer systems, and regular equipment audits help reduce exposure risk for operators. Fire risk stays low, since halogenated phenols resist spontaneous ignition and rapid combustion.
Even simple storage practices make a difference. Dry, well-sealed containers prevent caking and hydrolysis, and we work with our warehouse team to keep temperature ranges stable. Small leaks or residual dust get handled immediately, both to keep product within specification and safeguard our team’s health. Downstream, partners combining this material in large batch reactions often ask for training tips or share their own handling improvements. We believe the best practices don’t stay a company secret—they build up sector-wide.
Experience with this compound stretches back to early pilot runs, when scaling from flask to reactor revealed issues not seen at lab scale. Early on, we struggled with HCl evolution during chlorination, leading to minor corrosion in piping and unplanned downtime. Over several campaigns, process engineers tightened system controls and added vent scrubbers, shifting to more corrosion-resistant steel, until routine operations ran consistently with little downtime. Reaction exotherms, especially during halogen exchange steps, surprised us—rapid temperature rise in one campaign nearly breached safety limits. Detailed monitoring and staged reagent addition solved that, and regular operator training became our standard.
Another issue: dust control. Halogenated phenols, especially those with low particle size or light bulk density, tend to fluff up during transfer. Installing vacuum transfer and filter units cut overall dust loss by half, saving product and requiring less cleanup. Noise in purity data—itself sometimes caused by trace process solvents—taught us the value of thorough in-process GC monitoring. We now run intermediate checks, sometimes mid-reaction, catching off-spec trends before they reach final QC. These improvements didn’t emerge overnight. They grew out of repeated internal review, outside audits, and regular feedback from both technical staff and customers.
Our bulk procurement team feels the pressure when regulatory shifts hit imports of raw halogenating agents or when freight rates spike. Forward purchasing and local sourcing have helped buffer many of these shocks, keeping overall production cost and lead times in a manageable range. In some markets, permit requirements for phenolic compounds and halogenated chemicals change rapidly. Years ago, we saw a shipment delayed for weeks by paperwork issues, leaving both ourselves and clients frustrated. Afterward, we reviewed documentation processes and now maintain a close watch on package labeling, export paperwork, and customs changes.
Traceability sits at the heart of our documentation practices—each drum, bag, or tote bears a batch code that maps back to every raw material lot, staff member, and process checkpoint. Downstream users tracking regulatory compliance or sustainability goals often request full chain-of-custody reports. As a manufacturer, we see this as a baseline, not an add-on. Quality and traceability start in the plant and end only when the end product reaches its final user.
Working with halogenated phenolic intermediates means keeping a sharp eye on both process waste and end-of-life disposal. Our chemists work continuously to reduce mother liquor volume in crystallization and recover more solvent for reuse. Over the past five years, investments in filtered solvent recycling have cut new purchase rates by over 30%, slashing both cost and environmental footprint. We assess all aqueous and organic waste streams for halide content, sending only treated, neutralized effluents off-site. Local regulations push these standards, but our own team’s pride in clean practices keeps us to a higher bar.
Emission reduction extends to packaging choices too. Shifting from heavy-gauge steel drums to triple-lined fiber barrels, when technically feasible, dropped average outgoing shipment weight and allowed for easier material handling at customer sites. End users routinely ask about residual contaminants or leaching—this led us to implement full leachate testing for every packaging material product line. These practices didn’t just satisfy auditors; they fostered a sense of accountability within our plant workforce.
No intermediate compound earns its place in industrial processes unless it performs consistently under pressure. A few years ago, a pharmaceutical supplier flagged our material for stress-test decomposition at high temperature, something rarely encountered in standard reactions. Our R&D crew traced this to a minute impurity formed during extended heating near the top end of the material’s stability range. Tightening distillation parameters and swapping drying gas purity solved the root issue. When working with large-scale agricultural partners, we repeatedly saw product purity impact downstream yield. Timing of deliveries lined up with pilot-phase tox studies, so even a minor delay or spec deviation had outsized impact. Solutions often lay in communication and collaboration—advance forecasting, milestone batch review, and periodic joint audits. Each partner’s process taught us lessons we fed back into our own operations, creating a virtuous learning cycle.
Scale-up isn’t always linear. A pigment manufacturer ran into filter clogging as they doubled batch size, caused by a subtle shift in crystal habit that escaped lab-scale observation. Collaborating on sampling and in-process microscopy, we adjusted solvent ratios and cooling curve, restoring through-filter flow. Setbacks like these teach what paper datasheets cannot—how the sum total of molecule, process, and partnership build toward commercial reality.
Technical service teams on our side bridge the gap between what’s on paper and what happens in reactors or blending tanks. Customers come with questions about cleanup, solvent compatibility, up- and downstream handling, and regulatory strategies, and we share what’s worked in the past—not just for our own plant, but pulled from a network of global customers. Sometimes it’s a tip about order of addition, sometimes a warning about unknown exotherms or incompatibility with certain plastics. Our chemists stay engaged past initial batches, tracking trends and troubleshooting with honest feedback. Trust builds not just from successful deliveries, but from transparency about setbacks and learning as a group.
We see this approach pay dividends. New customers return with expanded projects, larger orders, and requests for custom purities or specific packaging. Internal development accelerates, since feedback from real-world use cycles back into our next process review. This way, we’re not just filling orders—we’re helping define what robust, reliable chemistry in production looks like for everybody in the value chain.
This compound serves more than a single market or application—it underpins a surprising range of advanced chemistry, from crop science to custom dyes, electronics, and drug intermediates. Beyond chemical structure and theoretical benefits, hands-on manufacturing reveals challenges and rewards that only come from repeated, practical use. By focusing on purity, reliability, operator safety, and transparent supply chain practices, we build trust not just in one product, but in an entire way of delivering chemistry to those who need it most. New regulatory requirements, evolving safety standards, and ever-tighter performance specs all push us to continual improvement.
At the end of a long production campaign, the best feedback comes not from a certificate of analysis, but from partners saying their yields went up, their downtime fell, and their next project spec has already expanded. Phenol, 2,6-Dichloro-4-Fluoro- doesn’t support these outcomes on its own—but it forms a crucial link. As direct manufacturers, we see the nuances, address the unexpected, and commit to long-lasting, responsive supply. What matters most is earning that trust batch after batch, year after year, through every order delivered and every problem solved.