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Dimethylphosphoramidous Dichloride

    • Product Name Dimethylphosphoramidous Dichloride
    • Alias Phosphoramidous dichloride, dimethyl-
    • Einecs 209-777-8
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    197435

    Chemical Name Dimethylphosphoramidous Dichloride
    Cas Number 677-43-0
    Molecular Formula C2H6Cl2NOP
    Molecular Weight 164.96 g/mol
    Appearance Colorless to pale yellow liquid
    Boiling Point 134-136°C
    Melting Point -60°C (approx)
    Density 1.34 g/cm³
    Solubility Decomposes in water
    Refractive Index 1.466
    Flash Point 48°C (closed cup)
    Odor Pungent
    Storage Conditions Store in cool, dry place; tightly closed
    Synonyms N,N-Dimethylamidodichlorophosphine
    Stability Unstable in presence of moisture

    As an accredited Dimethylphosphoramidous Dichloride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 500g of Dimethylphosphoramidous Dichloride supplied in a sealed amber glass bottle, with tamper-evident cap and warning label.
    Shipping Dimethylphosphoramidous Dichloride should be shipped in tightly sealed containers under inert atmosphere. It must be labeled as a hazardous chemical and packed in accordance with regulations for toxic and corrosive materials. Transport should avoid exposure to moisture and high temperatures, and follow all local, national, and international shipping regulations.
    Storage Dimethylphosphoramidous Dichloride should be stored in a tightly sealed container, in a cool, dry, well-ventilated area away from moisture and incompatible materials such as strong bases and oxidizers. Keep it away from heat, direct sunlight, and sources of ignition. Storage areas should be equipped with proper spill containment, and containers should be clearly labeled and protected from physical damage.
    Application of Dimethylphosphoramidous Dichloride

    Applications of Dimethylphosphoramidous Dichloride in Industrial Manufacturing

    Dimethylphosphoramidous Dichloride serves as a specialized intermediate in several chemical industry sectors that demand high reactivity and selectivity for the production of advanced phosphorus compounds. As an original manufacturer with decades of expertise in organophosphorus chemistry, we supply this material to qualified customers operating in strictly regulated fields. Below, we highlight key downstream applications, relevant compliance standards, industrial dosage practice, process roles, and the categories of finished goods produced by direct customers.

    1. Agrochemical Synthesis – Phosphorus-Based Crop Protection Agents

    Major agrochemical formulators utilize Dimethylphosphoramidous Dichloride for the synthesis of selective organophosphorus intermediates, which further react to create insecticidal and acaricidal active substances. The compound’s reactivity enables controlled phosphoramidation under anhydrous conditions, supporting the downstream production of molecularly complex actives with precise purity and low impurity profiles, addressing resistance management and regulatory mandates for mainstay crop protection products.

    Industry compliance standards

    • FAO/WHO Specifications for Pesticides
    • US EPA Active Ingredient Review & Tolerance Regulations (40 CFR Part 180)
    • EU Regulation (EC) No 1107/2009 on Plant Protection Products
    • China GB/T 1601 for Technical Pesticide Intermediates

    Typical usage ratio

    • 0.2–0.6 molar equivalents relative to downstream alcohols or amine nucleophiles; ratio depends on target active molecule’s stoichiometry and yield optimization.

    Downstream process integration

    • Batch or continuous reactor charge after solvent dehydration and inert gas purging; nucleophilic substitution under strictly anhydrous, temperature-controlled addition regime; direct transfer to hydrolysis quench and further derivatization steps toward final pesticide active synthesis.

    Final product types

    • Phosphoramidate-based insecticidal actives (e.g., acephate, methamidophos intermediates)
    • Acaricidal compounds for integrated pest management
    • Intermediates for rice and cotton pesticide formulations

    2. Flame Retardant Additive Manufacture – Phosphorus-Containing Oligomers

    Industrial producers of high-performance flame retardant additives adopt Dimethylphosphoramidous Dichloride as a key phosphorus donor for the controlled synthesis of aryl and alkyl phosphoramidate oligomers. The resulting products enhance fire resistance characteristics in polymers and electronics, with precise phosphorus content essential for regulatory approvals and downstream compounding. Consistent reactivity and purity underpin batch reproducibility demanded by advanced materials customers.

    Industry compliance standards

    • UL 94 Flammability Testing and Material Safety Requirements
    • RoHS (EU Directive 2011/65/EU) for Heavy Metal and Flame Retardant Restrictions
    • REACH Registration and Substance Evaluation Dossier (Annex XVII)
    • ISO 9001:2015 Certified Quality Management System

    Typical usage ratio

    • 0.3–0.5 molar equivalents per targeted phenolic or aliphatic starting material; adjusted to achieve specified phosphorus loading (usually 5–12% w/w in final additive).

    Downstream process integration

    • Step-growth polymerization initiated after pre-dissolution and neutralization sequence; Dimethylphosphoramidous Dichloride feeds directly into oligomerization reactors under strictly controlled temperature, typically followed by vacuum stripping and post-polymerization purification prior to compounding.

    Final product types

    • Phosphoramidate flame retardant oligomers for thermoplastics
    • Reactive phosphorus additives in epoxy and polyurethane systems
    • Powder concentrate masterbatches for wire and cable sheathings

    3. Pharmaceutical Intermediate Production – Synthesis of Organophosphorus Motifs

    GMP-compliant pharmaceutical manufacturers employ Dimethylphosphoramidous Dichloride for synthesis of advanced phosphorus-containing structural frameworks, such as amidophosphoramide intermediates, critical in the preparation of nucleoside analogues and select antitumor agents. The compound’s high chemical specificity ensures robust control of stereochemistry and functional group compatibility through multi-step routes, minimizing side reaction byproducts in regulated cGMP settings.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • US FDA 21 CFR Part 211 – Current Good Manufacturing Practice for Finished Pharmaceuticals
    • Pharmacopoeia monographs (USP, EP, JP) for intermediates and residuals
    • EMEA Quality Risk Management (ICH Q9)

    Typical usage ratio

    • 0.5–0.9 molar equivalent based on target nucleoside or amino acid substrate; precise dosage determined by reaction scale-up studies and impurity profiling.

    Downstream process integration

    • Grignard or lithiation-based precursor functionalization followed by staged addition of Dimethylphosphoramidous Dichloride under nitrogen at low temperature; in situ quench and chromatographic purification prior to downstream coupling, hydrogenation, or crystallization steps.

    Final product types

    • APIs containing phosphorus-nitrogen linkages
    • Antiviral nucleoside analogues (e.g., tenofovir, phosphoramidate prodrugs)
    • Chemotherapy intermediate compounds for small molecule synthesis

    4. Chemical Catalyst Ligand Synthesis – Organophosphorus Chelating Agents

    Producers of homogeneous and heterogeneous catalytic systems use Dimethylphosphoramidous Dichloride as a building block for ligand synthesis, tailored for selective phosphorus-based chelation in metal-catalyzed organic transformations. The controlled addition yields functionalized phosphoramidous ligands used to increase activity and selectivity in processes such as asymmetric hydrogenation, olefin polymerization, and specialty polymerizations. This route meets the quality and purity specifications required for reproducible catalyst batch manufacturing.

    Industry compliance standards

    • ISO 17025 Accredited Analytical Testing for Ligand/Catalyst Lots
    • Internal GMP Process Controls for Fine Chemicals (as defined by customer)
    • Consortium-led “Responsible Care” Production and Transport Protocols
    • SHEQ Auditing under local government chemical safety regulations

    Typical usage ratio

    • Exact equimolar to 1.1:1 ratio with metal salt or aromatic precursor, depending on the ligand type and intended coordination geometry; titrated for batch scale with fine adjustment during lab-to-plant transfer.

    Downstream process integration

    • Charged after deprotonation of ligand backbone under inert atmosphere; Dimethylphosphoramidous Dichloride introduced slowly to prevent side-reactions; workup by precipitation or solvent extraction; further metalation or immobilization on silica/alumina support carried out before shipment.

    Final product types

    • Bidentate phosphoramidate ligands for asymmetric catalysis
    • Homogeneous catalyst precursors for chiral hydrogenation
    • Immobilized chelating agents for industrial polymerization reactors
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    Certification & Compliance
    More Introduction

    Dimethylphosphoramidous Dichloride: Our Experience with a Versatile Phosphorus Reagent

    The Product and Our Commitment

    In the chemical industry, every molecule has its place and purpose, but it’s the fine-tuned reagents that pull the most weight on production lines and in the lab. Dimethylphosphoramidous Dichloride (also recognized by its molecular formula, C2H7Cl2N P), stands out among phosphorus-based intermediates. Having manufactured this reagent in our own facilities for years, we understand its demanding synthesis, tight handling requirements, and the value it offers to downstream industries. Our technical team has come up against nearly every challenge these types of organophosphorus compounds present, and we approach each batch with vigilance—knowing how much a small impurity can disrupt a hard-earned process.

    Key Specifications and What They Mean in Practice

    Dimethylphosphoramidous Dichloride, produced by our controlled chlorination stages and purified by careful distillation, supplies a consistent reagent for phosphorus chemistry. Our production lines yield material that meets rigorous standards, free-flowing and colorless, with purity confirmed by in-house analytical instrumentation, including NMR and GC-MS. Moisture sensitivity is a real concern for this molecule, so we operate our reactors and packing stations under inert gas, and every drum leaves our gate tested for hydrolytic stability. You notice the results not on a paper certificate but in the way our product moves through your bench and plant without gumming lines or throwing up surprise precipitates.

    We see a typical minimum assay of 98% for the active phosphorous component, with chloride content closely monitored. Our technicians calibrate glassware and methodologies themselves, using reference standards drawn from our own tightly inventoried stock. We’ve found that shipping at temperatures below 30°C helps prevent decomposition, and we ship every container sealed against the air, with unbroken tamper indicators. Each lot can be traced back to raw material receipt and reactor logs.

    Manufacturing Realities: Why Quality Varies

    Unlike standardized bulk chemicals, specialty phosphorus intermediates like this one pose unique risk points during production. Chlorination steps need precision; pressure and addition rates must be tracked minute by minute, and failure to do so can leave you with tri-substituted side products or crimson-colored impurities. Dimethylphosphoramidous Dichloride draws attention to itself in the plant, with its need for dry glassware, cool ambient temperatures, and steady nitrogen purges. If water finds its way in, you get phosphoramidic acids instead of clean product. Old gaskets, rushed setups, or a moment’s lapse in monitoring can undo a whole batch, and the costs mount up. We control each run from synthesis through packaging because we know any slip means more than just downtime: it can change the chemical’s working profile in our customers’ reactions, affecting things downstream that no datasheet will warn you about.

    Application: Value in Synthesis and Industry

    In our experience supplying research institutes and pharmaceutical groups, the real worth of Dimethylphosphoramidous Dichloride shows up where chemists forge new organophosphorus frameworks. It serves as a reliable phosphorylating reagent, particularly for producing phosphoramidates, robust phosphoryl intermediates, and specialty ligands. When collaborating with agrochemical formulators and polymer labs, we’ve witnessed the material forming building blocks for flame-retardant compounds and intricate catalysts, giving designers flexibility in structure and function. In pharmaceutical synthesis, speed and selectivity matter most, and we've found our grade allows for smoother coupling with amines and alcohols, minimizing the persistence of side reactions and making purification easier.

    Clients building scale-up processes have commented on the reagent’s sharp reactivity, and the repeatability of outcomes between lots. This consistency keeps timelines predictable—no sudden flurries of troubleshooting or re-optimization as you climb the project ladder. Where others have seen stock from uncertain origins fail, we have stood by our product, often walking clients’ chemists through troubleshooting on their shop floors, phone in hand and batch data ready.

    Working Knowledge: Challenge and Adaptation

    The distinction between Dimethylphosphoramidous Dichloride and older phosphorus chlorides shows up most clearly in selectivity and process safety. In comparison to phosphorus trichloride or phosphoryl chloride, this product brings greater specificity for certain amidation or nucleophilic substitution steps. While trichloride finds regular use as a general chlorinating agent, dimethylphosphoramidous dichloride provides cleaner reaction windows for forming C-N-P or C-O-P bonds. Fewer by-products mean fewer downstream purification headaches and smaller environmental footprints. Some of our clients, shifting from legacy phosphorus reagents, have noted the difference in manageable exotherms and better yields. The ability to tightly control the reaction path reduces waste and allows scale-up to proceed with minimal surprises.

    Differences from other Phosphorus Reagents: What Our Teams See on the Ground

    Unlike common phosphoryl chlorides, Dimethylphosphoramidous Dichloride stands on its own in two important respects: first, its tailored structure gives it higher selectivity for direct phosphoramidate formation, particularly when interacting with sensitive amino or alcohol functionalities. While phosphoryl chloride reacts in broad and sometimes unpredictable fashion, potentially requiring excess base or extra temperature controls, our product lets chemists steer their outcomes toward cleaner profiles. This saves both time and solvent during workup and isolation of target products.

    Second, toxicity management changes. Many organophosphorus chlorides raise concerns about off-gassing and long-term exposure, but dimethylphosphoramidous dichloride presents a lower risk profile in this regard, so long as standard precautions are followed. Our safety data, gathered both in our facility and from industrial clients, show lower baseline vapor pressure and milder by-product volatility than harsher chlorinating agents. This shows up during handling, making day-to-day work less stressful and helping under-resourced labs operate within compliance. These differences don’t erase the need for good PPE and engineering controls, but they allow experienced staff a wider margin of safety for transfers, sampling, and vessel cleaning routines.

    We’ve seen performance and safety differences repeatedly, whether during large-scale production for licensed agrochemical actives or in pilot plant settings for customized biocides. Clients directly report back on these operational aspects, often unsolicited, providing us with feedback cycles that shape ongoing improvements in both quality and logistics.

    Improving Handling and Downstream Processing

    Handling Dimethylphosphoramidous Dichloride calls for a disciplined approach. Our teams learn early to prepare for its moisture sensitivity, as the hydrolysis reaction not only wastes product but can form clumpy solids that block filter and transfer lines. After early setbacks, we invested in inline moisture meters and quick-responding nitrogen switches for every stage, and we’ve shared these protocols openly with customers. Packaging only in nitrogen-flushed, thick-walled containers proved more reliable after we saw corrosion on thinner barrels in humid seasons. We made these adjustments year by year, learning from every returned drum and client comment. This attention to detail pays dividends for those using automated or continuous flow systems, where uninterrupted supply is the backbone of a successful process.

    We encourage partners to combine our direct application notes—compiled from production chemist observations—with their own process data, building a robust set of operating procedures. The product’s physical properties, including its fairly low viscosity, simplify pumping and metering in closed systems, allowing for neat automation despite its chemical sensitivity.

    Environmental Pressure and Responsible Manufacturing

    Manufacturing specialty phosphorus chemicals attracts close scrutiny from environmental regulators and local communities. In our own operations, wastewater management and air emission control have become top priorities. The hydrolysis products and volatile off-gas must not escape containment: we maintain closed-loop scrubbing systems and run frequent audits for leaks and unplanned releases. Our own experience shows that compliance is about more than audit checklists; batch loss and unmitigated venting means wasted raw material and extra cost on top of regulatory risk.

    On the front lines, our operators constantly tweak scrubber chemistry to capture not only hydrochloric acid formed by trace hydrolysis, but also organophosphorus residues. Each shift supervisor carries responsibility for these routines, recording deviations and triggering spot checks as needed. These measures reflect a practical understanding of the chemical’s environmental load, and allow us to minimize complaints and unplanned shutdowns. For every reportable incident, we investigate root causes, using both on-site camera review and hands-on checks. We’ve learned that good environmental performance stems from a union of smart engineering and worker buy-in.

    What Customers Ask, and What Experience Teaches

    Over the years, technical teams seeking Dimethylphosphoramidous Dichloride bring two main questions: what makes this reagent an improvement over traditional phosphorus chlorides, and what steps keep it stable? Addressing the second, our decades of batch data point to two main culprits of degradation: residual water in process lines and temperature excursions. Solutions require more than equipment upgrades. We train each shift on the critical window when the reagent’s packing and transfer take place, using both direct supervision and clear written guides. Before shipment, our QA techs test the last fill from the batch and hold every drum at temperature before loading out. This tight loop lets us deliver fresh, reactive material, not a container of half-spent intermediate.

    As for value, our direct line to multiple synthesis teams gives us unique perspective. Many have switched to dimethylphosphoramidous dichloride expressly to control isomer formation and minimize by-products. One pharmaceutical customer reported that replacing thionyl chloride and phosphoryl chloride with our reagent improved the reproducibility of a key coupling reaction and allowed the same process to run on both pilot and production scales with identical yields. This saved them months of re-debugging and improved their regulatory filing timeline.

    Academic researchers, less focused on scale, find the product useful in quick library synthesis, generating dozens of phosphoramidate variants in parallel, since side-reactions clean up with standard silica gel or crystallization rather than prep-scale chromatography. These practical uses build a body of knowledge greater than any published paper or brochure, and this real-world feedback cycles back into our own process improvement cycles.

    From Laboratory Bench to Plant Scale: Bridging the Gaps

    Scaling up specialty reagents like Dimethylphosphoramidous Dichloride from gram to ton scale tests both chemical robustness and logistical discipline. We’ve seen academic protocols that seem sturdy at ten grams become unworkable at a hundred kilograms—the exotherm dynamics change, trace water behaves unpredictably, and reagent residence times stretch out. In our own plant, careful profiling of each new campaign informs reactor choice and utility loads. We match heat exchangers to batch size, monitor condenser loading for humidity, and keep scrubbing systems ready for unusual vapor surges.

    Our engineers learned early that relying on generic equipment sizing invites trouble. Custom glass or PTFE linings avoid corrosion, and metering pumps get checked not only for compatibility but for precision under real-world flow. We field-test all changes at intermediate scale when possible, and our product development chemists routinely walk the plant floor to see theoretical tweaks meet actual equipment. We encourage our customers to gather this operational knowledge by running side-by-side pilot and plant batches, sharing our own profiles as a guide. This level of cooperation keeps processes safe and ensures high yields, even when scaling up for the first time.

    Expanding Use: Potential and Future Directions

    Dimethylphosphoramidous Dichloride continues to inspire new routes in chemistry. In recent years, we’ve seen it move beyond straightforward amidation into applications like customized ligands for asymmetric catalysis, where its precise steric environment helps tune metal affinity and reactivity. Polymer researchers now employ this reagent to fashion blocks where phosphorus content and chain length can be adjusted tightly, producing materials with flame resistance and altered dielectric constants. Our own R&D group has trialed new substitutions on the methyl group, targeting even sharper selectivity, and these early experiments open doors to project partnerships across fine chemical and specialty materials sectors.

    Customer requests often drive our innovation. Some partners need lots that meet ultra-low halide profiles for electronics applications, while others seek high throughput for agricultural intermediates. Each use uncovers a new requirement—faster dissolution, tuned melting point, altered viscosity—forcing us to adjust process conditions, sometimes rewiring entire sections of plant to meet those needs. These iterative upgrades strengthen both our product and customer relationships, embedding shared experience deep into the work.

    We’ve found that sharing application notes, setup guides, and troubleshooting tips builds loyalty with buyers and technical staff alike. Most prefer to see process notes from actual plants over theoretical reaction schemes. This focus on transparency and learning shapes our approach to product support and helps all players rise above the daily friction of chemical manufacturing.

    Lessons Learned: Safety, Stability, and Performance

    Dealing with Dimethylphosphoramidous Dichloride tests a manufacturer’s discipline. Early plant trials, filled with foil-wrapped drums and hurried transfers, taught us the hard way the value of good drying, robust seals, and patient operator walkthroughs. Today, we keep a checklist for each shift: equipment pre-drying, leak checks, moisture probe calibration, and real-time batch log reviews. These routines reduce downtime and material loss, even when handling interruptions crop up.

    Safety fundamentals remain unchanged—respirator and glove requirements, spill control equipment at the ready, continuous air monitoring for trace impurities. New recruits shadow experienced hands to learn how a small deviation in temperature or nitrogen pressure can turn an easy batch into an afternoon of rework. This knowledge transfers best face-to-face, and we encourage open communication between crews. Sharing mistakes and fixes, rather than pretending all goes smoothly, strengthens both plant culture and client trust.

    Outlook: Meeting Challenges Ahead

    As demand climbs for more customized and high-purity phosphorus intermediates, Dimethylphosphoramidous Dichloride will only grow in importance. Regulatory pressure on emissions, stricter purity criteria in pharmaceuticals and polymers, and a drive for greater plant safety challenge operators worldwide. From our side, consistent process review, careful quality assurance, and direct technical support will remain the best tools to navigate these challenges.

    Our story with this reagent shows what is possible when experience, process discipline, and open communication come together. Every batch shipped, every customer call answered, and every suggestion adopted into practice reflects a shared journey toward better chemical manufacturing—for our site, our partners, and the users transforming raw intermediates into products that matter.