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HS Code |
422161 |
| Chemical Name | Diethyl Benzylphosphonate |
| Cas Number | 1663-91-8 |
| Molecular Formula | C11H17O3P |
| Molecular Weight | 228.23 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 140-142°C at 2 mmHg |
| Density | 1.104 g/cm³ at 20°C |
| Purity | Typically ≥98% |
| Solubility | Soluble in organic solvents (e.g. ethanol, ether) |
| Flash Point | 140°C |
| Refractive Index | n20/D 1.462 |
| Smiles | CCOP(=O)(CC1=CC=CC=C1)OCC |
| Ec Number | 216-774-1 |
As an accredited Diethyl Benzylphosphonate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Diethyl Benzylphosphonate is packaged in a 100g amber glass bottle, sealed with a tamper-evident cap and labeled for laboratory use. |
| Shipping | Diethyl Benzylphosphonate is shipped in tightly sealed containers, protected from moisture, heat, and direct sunlight. Packages comply with safety regulations and are clearly labeled as a chemical substance. Transport follows hazardous material guidelines where applicable, ensuring secure handling to prevent spills, leaks, and environmental contamination during transit. |
| Storage | Diethyl Benzylphosphonate should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from moisture, heat, and incompatible substances such as strong oxidizing agents. Protect it from direct sunlight and ignition sources. Properly label the container and keep it away from food and drink. Follow relevant safety and chemical storage protocols at all times. |
Applications of Diethyl Benzylphosphonate in Industrial ManufacturingAs a direct chemical manufacturer, we supply Diethyl Benzylphosphonate to downstream industries with strict technical and compliance demands. Our direct participation in customer formulation trials and process consultations ensures precise integration of this intermediate into advanced manufacturing lines. Below, we detail verified industrial applications, focusing on regulatory requirements, formulation ratios, process stages, and end-product profiles relevant to actual downstream sectors. 1. Synthesis of Flame Retardant Additives for Engineering PlasticsDiethyl Benzylphosphonate functions as a phosphonate-type intermediate in the synthesis of flame retardant compounds for polycarbonate, polyethylene, and polyamide engineering plastics. End users typically introduce it in the phosphorylation stage, where aromatic phosphonates undergo further transformation using process catalysts and co-monomers. This material enables manufacturers to design flame retardants with target phosphorus content and thermal decomposition profiles to meet regulatory flammability thresholds for high-performance resins used in electronics casings, automotive parts, and building products. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
2. Organophosphorus Ligand Synthesis for Homogeneous CatalysisPhosphonate moieties from Diethyl Benzylphosphonate serve as core building blocks for organophosphorus ligands deployed in homogeneous catalysis, especially for transition metal-catalyzed coupling reactions in pharmaceutical and specialty chemical production. Ligand producers incorporate the material at the early ligand-assembly stage, targeting steric and electronic properties for selective catalysis. Stakeholders demand traceable raw materials, low impurity profiles, and precise phosphorus donors to ensure batch-to-batch reproducibility and catalyst lifetime in high-value syntheses such as Suzuki, Heck, or Stille coupling. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Precursors in the Manufacture of Agricultural Fungicide ActivesProducers of modern agricultural fungicides use Diethyl Benzylphosphonate as a key phosphonate scaffold in the synthesis of highly selective active substances. During process development, manufacturers integrate this intermediate in the construction of phosphonate-linked fungicide molecules, optimizing efficacy and environmental degradation rates. The raw material’s purity and batch homogeneity must comply with agrochemical standards, ensuring traceability when transforming into actives registered under national and international pesticide legislations. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Synthesis of Phosphorus-Containing Plasticizers for Specialty CoatingsManufacturers of specialty coatings and polymers use Diethyl Benzylphosphonate as an intermediate to synthesize non-halogenated, phosphorus-containing plasticizers. These plasticizers improve the flexibility, solvent resistance, and fire retardancy of UV-curable acrylics, polyurethane coatings, and flexible PVC. Technical formulation requires tight control of phosphorus content, molecular weight distribution, and thermal stability. Process engineers specify input ratios and process conditions allowing downstream customers to meet product standards for regulated construction, transport, and consumer market applications. Industry compliance standards
Typical usage ratio
Downstream process integration
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From inside the factory, the process behind every drum of Diethyl Benzylphosphonate is tightly linked to real-world chemistry and hands-on labor. Our production crew, with over a decade of practical experience, watches every batch as closely as a farmer tracks the weather. We know this compound’s journey from raw feedstock to finished product isn’t a matter of repeating textbook reactions; it’s a story of constant adjustment, troubleshooting, and maintaining high standards.
Out here, we don’t have room for vague words or flowery marketing. People who buy Diethyl Benzylphosphonate from us expect a dependable product. They need clear-cut answers: what does this material really do, how clean is it, what separates it from what other chemical houses are selling, and how can they make use of its special structure?
Diethyl Benzylphosphonate carries weight for many clients who work in fine chemicals, flame retardants, and advanced materials. As the manufacturer, we don’t just dump a bottle of liquid into a drum and send it off. Each batch comes from a reaction built around benzyl chloride and triethyl phosphite, usually in a solvent system that keeps things flowing while limiting contamination. Quality control samples are drawn straight from the reactor and analyzed against our internal specs: clear liquid, pale color, high purity. Our typical model specification holds the phosphorus content within a tight range because too much drift means customers face waste—or failed downstream reactions.
The issues we see most often come from tiny upsets: a slightly different catalyst grade, a change in solvent, raw material inconsistencies, or ambient temperature shifts. Other manufacturers might just blend out off-spec material or ignore the fine details. We don’t. Every tweak, every change in our raw stock shows up somewhere in the product. Our team reviews every production report, compares chromatograms, and talks through small deviations. This work isn’t done because of a brochure claim—it’s the difference between a shipment that passes your quality check and one that ends up sitting in your warehouse, useless.
Diethyl Benzylphosphonate isn’t a major commodity, but for those who use it, the details make or break their process. Labs working on organophosphorus synthesis count on the right degree of substitution. Fire safety teams, looking to formulate next-generation flame retardants, want a product that behaves precisely in polymer matrices. Agrochemical developers sometimes choose it for its phosphorus reactivity, crafting intermediates that push product performance into new territory. Whenever someone comes back with an order, they’re betting their project on a supplier whose process stands up batch after batch.
What we often explain to customers is this: on paper, many suppliers list similar purity figures, but that’s not the whole truth. Experience confirms that surface-level data points can mask deeper quality issues. How stable is the color over time? Does a slight impurity accumulate in downstream steps? What’s left after evaporation? These details matter for a processor making crop protection intermediates or a research chemist designing ligands for catalysis.
We built our main product around a clear, pale yellow liquid with assay typically above 98%. The structure, C11H17O3P, isn’t just a formula to us. Water content gets checked methodically because hydrolysis ruins usability. We maintain tight controls on acidity and elemental phosphorus levels. Impurities—whether from feedstock or side reactions—are tracked batch to batch, with each lot compared to internal standards we’ve developed through years of combined lab and factory experience.
People often ask what truly sets our Diethyl Benzylphosphonate apart. They’ve tried samples from brokers that don’t dissolve the way they should, or encountered suspiciously fast yellowing in storage. Small producers sometimes cut corners on distillation or skip the purity checks. For us, the difference isn’t marketing—it’s knowing your polymer pilot line won’t plug up with undetected tar, or your flame retardant won’t fail combustion tests because of unseen instability. Maintaining high actual purity, with consistent physical properties and minimal impurity burden, makes the difference in a demanding synthesis lab or a scale-up facility.
This isn’t an industry where generic process descriptions suffice. Our operators and engineers know that if you rush a reaction or misjudge temperature, phosphorus esters can decompose or darken. Quality control technicians obsess over details: from titrations to NMR, every product drum is matched to a reference batch. Creating a repeatable process for Diethyl Benzylphosphonate was never simple, and it took years of refining procedures while learning from small setbacks and customer feedback.
Even small operational changes—like altering the method of introducing reagents to the reactor—change yield and impurity profiles. We track laboratory deviations and production anomalies. If a sample shows even a slight shift in UV absorbance or impurity peak, we rerun tests, engage the team for root-cause investigations, and only release material that earns the highest marks. Our chemists have seen every shade of setback: off-odor, gradual darkening, sluggish reactivity, separation problems in downstream processing. Every issue is a lesson built into our current process.
Buyers sometimes compare Diethyl Benzylphosphonate with triethyl phosphite, dibutyl phosphite, or other benzyl phosphonates. While there’s family resemblance, the differences show immediately in real-life handling. Triethyl phosphite and dibutyl phosphite differ both in reactivity and compatibility; a manufacturer can’t just swap them into the same process and get the same results. Our product’s benzyl substitution changes its behavior—especially in coupling and protection reactions, and in use with certain resin or flame retardant matrices.
From our end, every structural change means a new headache if you don’t manage the process deviations. The phosphonate ester group shows subtle differences in stability, storage, and reactivity compared to phosphite esters or phosphates. Downstream users—especially those working at scale—share stories of process halts after trying the “wrong” phosphorus reagent, or subtle shifts in color/reactivity that cost time and money. Each time, we return to our own process notes to help them troubleshoot.
Most phone calls from clients start with a technical problem on their line. Sometimes it’s a reaction that stalls, polymer that clumps, or fire retardant tests that miss a key metric. Chemists who rely on Diethyl Benzylphosphonate want answers with substance. Here’s how our experience answers those calls:
We’ve faced more than one situation where a client, frustrated with unreliable product from resellers, sends samples that don’t meet spec. Our technical service digs into batch records, runs comparative analysis, and sometimes invites clients to visit the plant to see production up close. These collaborations help them see why product made under real manufacturer discipline usually ends up a better fit.
Responsible chemical making doesn’t stop at shipping. We hear regularly from research groups and industrial processors who ask detailed questions about impurity breakthroughs, trace elements, or recycling options. Over the years, we have invested in improving our analytical capability and reducing waste in our process. Our management encourages frontline workers to spot issues before they hit the loading dock.
We’re also building a long-term relationship with regulatory agencies and industrial partners. From registering products for compliance in sensitive markets, to tightening up process documentation, we keep the bar high. All of this, invisible in the drum, comes from our belief in being a real partner—not just today, but long after the order leaves our gate. That’s what separates a manufacturer rooted in the actual chemistry from faceless intermediaries.
What puts our Diethyl Benzylphosphonate above brokered commodity grades isn’t only about technical compliance or a number on a spec sheet. It’s the practical results—batches that don’t leave behind residue, color, or smell; products that incorporate smoothly into demanding applications; lots traced from raw material to finished shipment. Customers who’ve used inconsistent products elsewhere often notice less yield loss, fewer byproducts, and easier scale-up when they switch to us.
Each operator on our line knows the impact of missed details. Having trained chemists on-site isn’t just for show. It’s because every unforeseen process hiccup means a tougher time for the end user. We keep fresh eyes on the process logs, handing down manufacturing experience to new staff, and never assuming we’ve learned it all. Even tiny improvements—streamlined filtration, better materials handling, or more detailed batch tracing—cut problems before they start.
The future for specialized phosphorus chemicals lies in making safer, higher-value, and better-documented products. We are always adjusting our process as new applications emerge. Every time a research group publishes a new synthesis involving Diethyl Benzylphosphonate, our technical lead reviews the details, looking for possible improvements or issues. Experience in the factory feeds into technical advice we offer—like optimal addition rates for complex coupling reactions or methods to remove trace contaminants.
Environmental standards and customer expectations both rise year by year. We no longer compete only on price or headline purity. People expect responsible sourcing, minimal waste, and a transparent, continuous thread from raw material to finished product. With every shipment, our team stands by our track record of stability and innovation.
Customers frustrated by supply chain noise and resold products find relief in coming to the source. By working directly with the manufacturer, buyers access deep process knowledge. Our team invests time following up with users—not just to collect positive stories, but to fix anything that’s gone off in a new application. The aim isn’t a sale; it’s trust built through performance by treating Diethyl Benzylphosphonate as more than a generic commodity.
Having shipped to labs, pilot plants, and large-scale processors, we know the questions don’t stop at delivery. Product information, application advice, and troubleshooting are all drawn from a production team that lives with the chemistry every day. This approach earns loyalty and sets a higher industry standard. Looking ahead, that’s how we’ll keep Diethyl Benzylphosphonate—and all our products—a step ahead: by keeping smart hands on the controls, real dialogue with users, and an eye on every detail that shapes final outcomes.