| HS Code | 280398 |
| Cas Number | 120-83-2 |
| Molecular Formula | C6H4Cl2O |
| Molecular Weight | 163.00 g/mol |
| Appearance | White to off-white crystalline solid |
| Melting Point | 41-43 °C |
| Boiling Point | 210 °C |
| Density | 1.38 g/cm³ |
| Solubility In Water | 4 g/L at 20 °C |
| Vapor Pressure | 0.03 mmHg at 25 °C |
| Flash Point | 85 °C (closed cup) |
| Pka | 7.85 |
| Odor | Phenolic |
| Refractive Index | 1.577 |
| Synonyms | Dichlorophenol, 2,4-DCP |
As an accredited 2,4-Dichlorophenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Brown glass bottle containing 500 grams of 2,4-Dichlorophenol, tightly sealed, labeled with hazard warnings and chemical identification. |
| Shipping | 2,4-Dichlorophenol should be shipped in tightly sealed containers, protected from light and moisture. It must be handled as a hazardous material (UN2020, Class 6.1 Toxic Substance) and transported under applicable regulations. Use appropriate labeling and documentation, ensuring secure packaging to prevent leaks or spills during transit. Store away from incompatible materials. |
| Storage | 2,4-Dichlorophenol should be stored in a tightly closed, corrosion-resistant container, away from heat, sparks, and open flames. Keep it in a cool, dry, well-ventilated area, separated from incompatible substances such as strong oxidizers and bases. Proper labeling and secondary containment are essential. Protect from moisture and direct sunlight, and ensure access to appropriate spill and leak control materials. |
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At our factory, 2,4-dichlorophenol has never been just another chemical on the line. Day in and day out, we see the transformation that starts as a controlled reaction between phenol and chlorine, producing a compound that stands out in its family for purity and reliability. The process hinges on constant vigilance over the reaction’s temperature and pH, which shapes the consistency and brightness of the final crystals. This level of detail goes beyond satisfying industry demands—it is a commitment that ensures every sack leaving the plant means stability in someone’s next step, whether that’s a pesticide blend, a pharmaceutical intermediate, or a preservative base.
Many people glance over a label and assume any chlorophenol serves the same roles, but the molecular structure here does something unique. Chlorines at the 2 and 4 positions on the ring boost both the reactivity and the selectivity in downstream processes. What that means for formulators: reactions go faster, yield climbs, and by-product headaches drop off. Since we pay attention to source material grading and crystallization, our batches meet strict standards for melting point and appearance. You can spot our 2,4-dichlorophenol by its pearly white crystals and faint, characteristic odor—the kind of small feature that, in our experience, signals low tar content and minimal leftover organics. End-users have told us that these little differences cut their need for reprocessing or post-reaction purification.
As a manufacturer, we produce several lot sizes, but every batch starts with the same attention to raw material quality and controlled reaction parameters. Our most requested material falls within the specification of 99.5% minimum assay by GC, melting between 41 and 43°C, moisture below 0.3%, and maximum iron traces less than 5 ppm. Consistency matters—some clients want small lots for pharmaceutical syntheses, others order truckloads to feed herbicide plants for months on end. No matter the batch size, we run tight in-line monitoring, watching for shifts in color or melting behavior as each drum fills. Every time we see that crystalline powder mirror our internal reference standard, it’s another sign we’re hitting the true mark of reliability.
Chlorinated phenols have earned their place in agriculture, especially with the rise of demand for selective herbicides. The two chlorine atoms placed exactly on 2 and 4 of the phenol ring set this molecule up as the backbone for 2,4-D, a legendary broadleaf weed control agent. Our direct experience shows that users aiming for a synthesized ester or salt can drive up conversion rates with our material. Each time the purity slides or tars creep in, the downstream process suffers, causing problems in yield and regulatory analysis. Those who buy from us often report smoother distillation and fewer batch failures. Their feedback isn’t just anecdotal—we’ve collected real conversion data before and after tighter mother liquor control, and it lines up with improved plant throughput.
As the world moves to stricter quality standards, our practices have to stay one step ahead. Someone making an active pharmaceutical ingredient can’t risk unknown impurities. Our traceability from incoming phenol to outgoing containers means end-to-end confidence. When a pharmaceutical client carries our certificate of analysis through regulatory review, we know every figure stands up to scrutiny. Down another corridor, one of our oldest production lines turns out 2,4-dichlorophenol for biocidal applications—wood protection, antiseptic prep, and even certain disinfectant bases. In all these fields, impurities stain the base color and, sometimes, the entire batch. Years ago, we upgraded our purification step after a customer sent us back drums flagged for faint yellow tint: not dangerous, but unacceptable for their downstream chlorinated ether products. Experience told us that color isn’t just aesthetics; it points to catalytic residue, which can cause over-chlorination or unwanted reaction branching.
Every operator in our finishing wing knows that 2,4-dichlorophenol needs careful handling. The powder clings in air, and the aroma—strong as phenolic compounds go—reminds you not to take shortcuts on containment. From depot to drum, we run active ventilation and use lined containers, avoiding metal contact that can trigger trace rust or catalyze decomposition. We’ve seen firsthand what happens when storage protocols slip. Years back, a spilled pallet in summer heat led to caking and a not-so-subtle rise in airborne levels, prompting us to double down on packing room dehumidifiers and temperature controls. Our product’s real-world shelf life, kept dry and sealed, measures in years, but moisture or sunlight can yellow the powder and, in extreme cases, set up slow hydrolysis. We never outsource packing—every drum is sealed inside our plant, checked for headspace contamination, and stamped in clear view with its loadout date.
The chemical business doesn’t have room for error on environmental discharge, especially when dealing with halogenated products. As the manufacturer, our obligations go deeper than compliance paperwork. 2,4-dichlorophenol offers significant value as an intermediate, but mishandling can spoil land or water for a lifetime, which every team member here understands. Closed water cycles in our factory, triple-lined tanks, and strict vapor recovery measures aren’t wishful thinking or box-checks. We adopted activated carbon and acid quench scrubbers on stacks and vents after neighbors raised concerns about odor drift years ago—since then, complaints have dropped off completely. Since local standards drove us to report discharge levels monthly, we haven’t recorded any exceedances. That’s the real-world reward of careful production: regulatory visits are routine, not anxiety events, because every system on the plant has been tested in real life and not just on paper.
Some buyers new to chlorinated phenols get confused by labels or upstream supplier offerings. Not all dichlorophenols behave the same; small tweaks in where the chlorines sit turn reactivity and toxicity profiles on their heads. For example, 2,6-dichlorophenol reacts sluggishly in the typical 2,4-D esterification runs, and its melting range jumps up. Others, like 3,5-dichlorophenol out of certain Asian plants, often slip into generic feedstock, complicating quality assurance downstream. Over years of continuous manufacturing, we’ve honed in on gas chromatography and melting-point fingerprinting to spot these off-spec intrusions before shipping. Customers who have tried to blend off-the-shelf dichlorophenols for cost reasons usually circle back to our standard product after running into quality or regulatory headaches. Their feedback holds up against our ongoing head-to-head purity checks, showing the critical nature of sticking to a known, tightly specified grade.
Manufacturing 2,4-dichlorophenol means taking plant safety seriously. Anyone involved in the chlorination step knows to look for hotspots, run cooling at full effectiveness, and rely on fast-acting containment if pressure builds. Over the years, safety investments have paid for themselves. Near-miss reports led us to double up on emergency scrubber redundancy and set strict PPE protocols for everyone at the reactor line. The result: zero lost-time incidents related to exposure for several years. Our plant-wide safety briefings often cover real scenarios—a valve stick, a dust collector glitch—so new hires see that vigilance is more than a checklist. Just last year, an alert from a technician caught product color shift from a heater miscalibration before it could cause a full batch loss. That kind of on-the-floor observation never shows up in price sheets, but it matters at every level of quality.
Global logistics sometimes falter—whether from political tensions, port closures, or raw material shortfalls. Our customers value not just the product but the reliability of its arrival. Over two decades of making 2,4-dichlorophenol, we’ve learned to keep emergency inventory and lock-in secondary sourcing for chlorine and phenol to avoid gaps. Longstanding clients rely on this planning when committing to production runs of agrochemicals, wood preservatives, and even specialty herbicide batches for export. By holding our own stock and offering clear updates during tight markets, we cut panic-driven overordering and, indirectly, support price stability in the regions that depend on regular supply. We’ve seen more than one cycle of suddenly spiking spot prices—our regular customers have reported far less downtime thanks to our straightforward communication and backup systems.
R&D teams sometimes ask us about other phenol derivatives for their process lines. While brominated or fluorinated analogs show up in specialty catalogs, the industrial base still trusts 2,4-dichlorophenol because of its reliable supply chain and cost structure. Chlorine remains more accessible and manageable in bulk than halogens like bromine, both for us as a manufacturer and for the folks using these intermediates. Switching to more exotic substitutions in search of higher biological activity or reactivity often means higher cost, supply risk, and greater regulatory hassle across borders. Over the past decade, we’ve benchmarked our product’s reaction efficiency in both traditional and newer synthetic routes, and the numbers track favorably—high yields, minimal unreacted phenol, and a well-understood toxicology profile with mature management practices for safe handling.
Times have changed since we filled 200-liter drums by hand and relied on chloride-laden cooling water. Increased scrutiny on waste and sustainability has touched every part of our plant. Years of investing in water circulation, product recovery from process streams, and secondary purification have reduced both our emissions and our running costs—with an added bonus of fewer odors and cleaner grounds. Several clients ask about our carbon footprint: over the last five years, equipment upgrades and heat recovery systems have collectively lowered our per-ton energy use by close to a third. What started as a regulatory nudge has turned into a point of pride, as customers compare not just price per kilogram but also the environmental cost. Our leadership team still walks the grounds and checks up on the stream buffer zone; our environmental numbers hold up to independent audits by local authorities.
One truth in chemical manufacturing: clients know their applications best. Over three decades, we’ve learned much from regular interactions—be it troubleshooting a sticky reaction vessel or tweaking particle sizing on request. It is not rare for a new application to drive us back into process R&D, especially as regulatory regimes tighten or product specifications evolve. Those customers who use 2,4-dichlorophenol in sensitive applications, such as pharmaceutical intermediates or biocides for critical infrastructure, provide feedback that goes straight into our QC discussions. This back-and-forth makes the product better each year—row by row of tank samples, incremental purification changes, and adjustments in filtration techniques. No process stands still; our own team thrives on these interactive partnerships, pulling new lessons from every batch review or post-delivery survey.
The nature of chlorinated phenol production means waste control stands near the top of every plant manager’s list. Off-gas, spent catalysts, and acidic effluent each pose their own risks—not just from a compliance standpoint but as potential costs if mismanaged. Years ago, we moved to a closed-cycle acid recovery system for our off-vessel washes, reclaiming usable byproduct while reducing haul-off volumes. Activated carbon columns now treat vapor before air stack discharge, capturing odors that would have once spread to the plant’s edge during hot summer runs. Regular review of mother liquor losses and filtrate purity has cut the volume of what leaves as Class I hazardous waste. These steps may involve upfront expense, but they add stability by insulating operations from tightening discharge limits and public concern over halogenated organic release.
Staying in the business as a direct manufacturer brings perspective that can’t be learned from a textbook or spreadsheet. The subtle skills—watching for shifts in raw material lots, tuning reaction endpoints, coaching new staff on containment quirks—anchor the daily work. Every drum packed is a mark of experience accumulated from real problems and practical fixes. Batch failures from years past shaped standard operating procedures: one incident with a faulty condenser led us to replace all gaskets plant-wide, sparing us future downtime. Strong relationships with downstream users add more feedback to the mix, especially when their labs find anomalous readings or unexpected reactivity. Taking those small, sometimes critical corrections and embedding them in the process blueprint keeps product performance up and surprises down.
Industry demand for 2,4-dichlorophenol continues to shift, reflecting the push for safer chemicals and lower environmental impact. Ongoing development into biobased phenol feedstocks and greener chlorination catalysts sits near the top of our innovation docket. We pay close attention to emerging end-uses, from advanced herbicide formulations to niche roles in electronics and specialty polymers. As supply chains globalize and product audits intensify, our direct experience stays valuable—earning trust batch after batch, through every quality certificate, every timely shipment, and every call from a user troubleshooting a production hiccup. Working hands-on with this compound over decades brings both the obligation and the satisfaction that comes from being more than a point on a contract. Every sack, drum, and shipment stands for our hard-earned reputation as a manufacturer who knows both the product and its purpose.