|
HS Code |
404294 |
| Chemical Name | 3,5-Dibromo-p-cresol |
| Cas Number | 118-79-6 |
| Molecular Formula | C7H6Br2O |
| Molecular Weight | 277.93 g/mol |
| Appearance | White to off-white crystalline powder |
| Melting Point | 115-120 °C |
| Boiling Point | 319 °C |
| Solubility In Water | Slightly soluble |
| Density | 2.34 g/cm³ |
| Purity | Typically ≥98% |
| Synonyms | 3,5-Dibromo-4-methylphenol, BRCP |
| Smiles | CC1=CC(=CC(=C1O)Br)Br |
| Inchi | InChI=1S/C7H6Br2O/c1-4-2-5(8)7(10)6(9)3-4/h2-3,10H,1H3 |
As an accredited 3,5-Dibromo-P-Cresol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A 25g amber glass bottle, tightly sealed, labeled “3,5-Dibromo-P-Cresol”, with hazard symbols and safety instructions printed clearly. |
| Shipping | 3,5-Dibromo-P-Cresol is shipped in tightly sealed, chemical-resistant containers to prevent moisture and contamination. The packaging complies with applicable hazardous material transport regulations. It should be stored and transported in a cool, dry place, away from incompatible substances, with proper labeling to ensure safe handling during transit. |
| Storage | 3,5-Dibromo-P-Cresol should be stored in a tightly closed container in a cool, dry, well-ventilated area, away from incompatible substances such as strong oxidizers. Keep away from heat and direct sunlight. Store under inert atmosphere if possible to prevent degradation. Properly label the storage container and ensure it is kept out of reach of unauthorized personnel. |
Competitive 3,5-Dibromo-P-Cresol prices that fit your budget—flexible terms and customized quotes for every order.
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From our plant floors to packed shipping pallets, 3,5-Dibromo-P-Cresol stands out for more than just its chemical formula. On a typical shift, workers in the blending room can easily recognize its crystalline, off-white appearance once a new batch cools—eyes and senses catch small variations that speak to purity or process efficiency. In this industry, each detail matters because our customers depend on batch-to-batch repeatability, especially when orders call for tight specifications.
The technical side starts simple: C7H6Br2O is the backbone of this compound, known for its dual bromine substitutions on the cresol ring. The real story comes from the way these atoms line up and interact, giving the molecule a unique combination of antiseptic action and chemical stability. These properties open doors: biocides, pharmaceuticals, and specialty chemicals all found value in what seems to some like a niche material.
We've put years into refining our process for 3,5-Dibromo-P-Cresol—years that also reveal evolving market needs. Early on, requests from pharmaceutical labs pushed the demand for higher purity beyond what was standard across commodity chemical trades. Our chemists had to rethink reaction times, temperature profiles, and crystallization setups to reduce trace organics and halogenated by-products. Each time a customer flagged an outlier result, production met in the lab to look at it up close under the microscope, measure every fraction of residue, and map each step of synthesis.
Our typical product meets a minimum assay of 99 percent, supported by HPLC and GC traces from in-house and third-party labs. Years ago, labs might accept something labeled simply as “high purity”; today, major formulators and regulatory reviewers ask for proof and a paper trail showing process controls throughout each run. It’s all part of the shift toward transparency—a shift we made as equipment and expectations matured.
Finished products in antiseptic formulations, coating blends, or polymer masterbatches all react differently to minor contaminants in input materials. A single percent below spec might lead to foaming, off-odors, or changes in shelf life. For 3,5-Dibromo-P-Cresol, which often goes into biocidal preparations or as a starting point for more complex syntheses, even subtle alterations cause knock-on effects. One incident in the early 2000s saw a client’s end-product fail European regulatory review due to a trace-level impurity; we tightened controls and added another purification stage shortly after.
Our approach since then involves everything from raw material vetting to using closed reactors to limit airborne contamination. Trainers guide operators on handling, and our QA team samples every drum before any pallet leaves the shipping dock. Live monitoring instruments now track environmental parameters and in-process composition in real time, offering adjustments before anything goes off course.
In a lab or on the shop floor, 3,5-Dibromo-P-Cresol distinguishes itself not just through its chemical make-up but also through its end-use results. Compare it to related cresol derivatives, such as unbrominated p-cresol or trihalogenated phenols: each shows distinct behavior in mixtures and target reactions. For customers aiming for broad-spectrum antimicrobial effects, the double bromination at the meta and para positions boosts efficacy without tipping into excessive toxicity, a balancing act single-halogen compounds can’t always match.
Manufacturers chasing synergy in antiseptic formulations tend to learn that 3,5-Dibromo-P-Cresol’s logP and moderate volatility strike a needed balance, unlike heavier, stickier trihalogenated products that resist blending or remain stubbornly insoluble in many common solvents. It also avoids some of the harshness that stronger halogenated phenols bring to delicate application areas, making it a better fit for topical or surface-contact products where user safety can’t be traded for marginally stronger effect.
Every scale-up brings surprises. Our pilot reactors ran with four-liter pots, but commercial orders run through glass-lined vessels of several thousand liters. We learned to anticipate exothermic “spikes” once the bromination goes live, and newly optimized chilling loops prevent runaway temperature rises. Small pilot samples once headed out for R&D test runs; now, tank trucks or sealed drums carry off finished product to major formulators worldwide.
Changeover and cleaning routines follow a meticulous script to prevent cross-contamination with other phenolic runs. Years ago, a recurring “ghost peak” during GC analysis prompted a hard look into shared transfer lines; changing out valve seats and overhauling rinse protocols cut the problem. Attention to these confinements matters because even experienced handlers can be tripped up by minute residues, especially at the edge of detection.
From direct application in disinfectant sprays and preservatives to use as a key intermediate in more complex pharmaceutical molecules, customers span everything from local biotech startups to global conglomerates. We’ve seen rising interest as healthcare regulations tighten around antimicrobial additives; formulators now want proof of performance and origin, not just assurance of supply.
End-users in the textile and coatings worlds commend its low coloration tendency, minimizing yellowing and streaking in clear or white formulations—an edge over many darker, iron-sensitive phenolic cousins. Plastic processors prefer it as a preservative in specialty blends because of predictable melt flow and process stability, even at elevated temperatures. Chemists looking to build out new APIs see it as a robust building block that stays intact through the first crucial synthetic steps.
Regulatory tides never fully settle. Global regulatory bodies increasingly focus on residues and trace-level by-products, especially compounds entering personal care or potable water applications. Recent years saw agencies in Europe and North America scrutinize permitted preservation agents and antiseptic ingredients. Each update could shift what grades or documentation customers demand, heightening focus on analytical transparency and impurity profiling.
Here, we committed early to in-depth MSDS updates and full access to technical dossiers for any client about to submit health and safety documents. Routine batches pass through spectroscopic and chromatographic screens, with results archived and supplied by request. We keep a close watch on public regulatory proposals; process teams prepare rapid-response changes to meet newly imposed standards without waiting for last-minute customer requests. By transitioning away from certain solvents and introducing new filtration technologies, we anticipate and adapt before rule changes reach market.
Not every application wants the standard grade. Lab teams at customer sites sometimes reach out when they hit solubility snags or need a tailored granule size. We respond with pilot trials that adjust crystallization speed, yielding product with specific particle range—a process developed after batches intended for compacted matrices started caking in ambient humidity.
Color stability also pops up as a recurring challenge; hues shift if trace metals sneak through from raw inputs. Over the years, we switched suppliers and instituted batchwise chelating steps to strip out iron or copper ions, sharply reducing off-tints and complaints from those in color-critical industries. These tweaks travel back through the manufacturing process, guiding future improvements as new challenges come to light.
Years ago, nobody asked much about the provenance of the raw petroleum base used for producing cresols or the bromine source. Now, questions hit our inbox every week about sourcing, carbon footprint, and environmental management. We responded by evaluating suppliers not only on cost and lead time but also by tracking their production methods and waste management practices.
Raw material stewardship now ranks alongside yield optimization in company planning meetings. Periodically, supplier audits happen with boots-on-the-ground visits to key facilities—a move that revealed process waste shortfalls at some sources and drove us to champion cleaner, closed-loop operations. We carry forward those standards all the way to product delivery, using returnable drums wherever distribution networks allow and prioritizing lower-impact logistics.
Talk with any production operator and the first thing they’ll mention about 3,5-Dibromo-P-Cresol is the need for solid safety discipline. The compound doesn’t pose the highest acute risk among phenols, yet its irritant action, especially as a dust or if dissolved in organics, commands attention. Standard procedure at our plant involves airflow controls, personal protective equipment, and sealed charging during every transfer.
A memorable lesson came after a filter press incident caused an unexpected dust release. Within the hour, updated workflow and new splash curtains reduced similar cases to near zero. Updated training protocols followed, setting rules that now carry over into every incoming operator's orientation. Consistent, hands-on safety habits build a culture that lowers downtime and keeps production on schedule.
Some of our longest customer relationships began with short calls about small test samples and “what if” questions. Many partners started in research and expanded over time, each new project presenting a challenge—sometimes a solubility hiccup at scale, sometimes a push for a better impurity profile. These projects energize our R&D lab, blending classic synthetic chemistry with new analytical tools like LC-MS/MS or advanced solid-state NMR for detailed characterization.
Over the last ten years, we’ve seen application frontiers widen. Recent customer trials hint at antimicrobial coatings for HVAC surfaces, next-gen adhesives, or even environmental remediation blends. Each new direction pushes us to stay nimble in both process design and market response, funding laboratory pilots and upscaling promising hits to full-scale production as quickly as quality controls allow.
Looking back over multiple decades manufacturing 3,5-Dibromo-P-Cresol, what stands out isn’t just throughput or tonnage, but resolving the myriad real-world puzzles that come with customer projects and regulatory requirements. When a customer needs a process tweak, like an extra-fine particle size or a special impurity threshold, production and lab crews dive into the problem—sometimes seeing a dozen trial batches before the solution clicks. It’s rarely about meeting a fixed standard; constant improvement comes from working side by side with those who pick up the drum or run the bench trial.
While differences between manufacturers can seem invisible at first glance, subtle distinctions in attention to raw quality, technical troubleshooting, and documentation make all the difference once production moves beyond the laboratory. That aging drum with the right specs and stability profile does more than fill space. It underwrites a customer’s project timeline, avoids headaches during audits, and shows downstream users—and even regulators—evidence of robust supply chains and technical competence.
Custom requirements, tighter environmental controls, and rising end-use innovation all ensure that the story of 3,5-Dibromo-P-Cresol’s manufacturing continues to evolve. Our team sticks close to both long-standing partners and newcomers, maintaining flexibility and a clear record of results. As the chemical landscape shifts toward greener processes and stronger regulatory oversight, those same old-fashioned ideas—careful sourcing, precise processing, and open dialogue—guide our future.
From handling the first ton of raw cresol to scaling up to multi-ton, pharma-grade production, we see each kilogram as another promise kept. Customers continue to challenge us, and we continue to respond—not just by meeting specs, but by building the next solution from the ground up. In a world where “standard” rarely stays still, experience and commitment count for more than any label or certificate.
