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O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate

    • Product Name O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate
    • Alias Phosmet
    • Einecs 258-053-2
    • 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
    VTB
    Specifications

    HS Code

    925304

    CAS Number 87674-68-8
    Molecular Formula C14H17ClN2O4PS2
    Molecular Weight 424.85 g/mol
    Appearance Off-white to light brown solid
    Melting Point 65-68°C
    Boiling Point Decomposes before boiling
    Solubility Slightly soluble in water; soluble in organic solvents such as acetone and chloroform
    Density 1.36 g/cm3 (approximate, at 25°C)
    Purity Typically ≥98%
    Storage Store in a cool, dry, well-ventilated place, away from light and moisture

    As an accredited O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 500 g of O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate is supplied in a tightly sealed amber glass bottle.
    Shipping Shipping of **O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate** requires compliance with hazardous materials regulations. The chemical should be packed in tightly sealed containers, cushioned to prevent breakage, and clearly labeled with hazard information. Ship using a certified carrier, following all regulatory and safety guidelines for toxic substances in transit.
    Storage O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizing agents and moisture. Keep out of direct sunlight and sources of ignition. Store in a designated chemical storage area, with appropriate labeling and secondary containment to prevent leaks or spills.
    Application of O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate

    Applications of O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate in Industrial Manufacturing

    As a specialist chemical raw material producer, we supply O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate (DECPEDTP) to industrial clients for well-established uses in advanced synthesis and industrial process streams. Below, we highlight key application tracks where this compound delivers unique technical value, supported by detailed compliance guidelines, dosage information, process integration details, and examples of end-use products developed by leading companies in these sectors.

    1. Intermediate for Organophosphorus Pesticide Synthesis

    Major agrochemical producers employ DECPEDTP in the manufacture of selective organophosphorus insecticides, especially those targeting sap-sucking pests in wide-acreage crops. The compound’s chemical reactivity facilitates a streamlined route to active insecticidal moieties through thioesterification reactions, supporting high purity synthesis and minimizing byproduct formation.

    Industry compliance standards

    • FAO/WHO Specifications for Pesticides
    • China GB 20783—Quality Standard for Pesticide Technicals
    • EU REACH—Annex XVII (insecticide precursor control)
    • ISO 9001:2015 (production and quality control)

    Typical usage ratio

    • 0.85–1.10 molar equivalents per target heterocycle, adjusted to optimize conversion and purity based on batch analytics

    Downstream process integration

    • Added during batch or semi-continuous synthesis as a key phosphorus-donor reactant; inline monitoring ensures reaction completion before downstream purification

    Final product types

    • Chlorpyrifos, profenofos, analogues in technical concentrate or formulated EC/SC pesticide products

    2. Additive for Industrial Lubricant Antiwear Additive Packages

    Formulators use DECPEDTP as a phosphorus-sulfur agent in complex antiwear lubricant additive systems. It supports boundary lubrication applications in metalworking fluids and industrial gear oils, minimizing wear/tear under mixed regime lubrication by forming protective phosphate films at metal contacts, especially under high thermal load.

    Industry compliance standards

    • ASTM D4951: Phosphorus in Lubricating Oils
    • DIN 51517, ISO 6743/6 (formulated lubricant additive norms)
    • REACH registered intermediate—lubricant category registration

    Typical usage ratio

    • 0.1–0.5% by weight in additive concentrate; final treat rate depends on base oil compatibility and required load-carrying capacity

    Downstream process integration

    • Blended into antiwear additive packages during concentrate manufacture at controlled temperature; introduced prior to final blending and filtration of finished lubricant formulations

    Final product types

    • Industrial gear oils (CLP/CKC specifications), high-pressure metalworking fluids, hydraulic fluids

    3. Intermediate in Pharmaceutical Active Ingredient Synthesis (Custom Manufacturing)

    Chemical synthesis facilities engage DECPEDTP as a masked phosphorus functionalization agent during the multi-step production of phthalimide- and phosphate-linked APIs. Its organophosphorus content provides a controlled route for selective phosphorylation steps necessary for targeted prodrug and intermediate generation.

    Industry compliance standards

    • ICH Q7A: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP–NF <789>: Phosphorus Compounds
    • FDA 21 CFR Part 211 (cGMP for finished pharmaceuticals)

    Typical usage ratio

    • 0.95–1.15 molar ratio to substrate, with precise stoichiometry set by process validation protocols for scale-up

    Downstream process integration

    • Added post-initial hydrogenation/crystallization as a phosphorus source, typically in a dedicated vessel under inert gas to avoid hydrolysis; subsequent downstream work-up tailors yield and minimizes impurities

    Final product types

    • Prodrug intermediates, phosphorylated heterocycles, niche generic pharmaceutical APIs

    4. Precursor for Synthetic Rubber Vulcanization Accelerators

    Rubber compounding plants select DECPEDTP as a tailored precursor for specialty vulcanization accelerator synthesis. Its thio-phosphoryl reactivity enables incorporation into secondary accelerator production, enhancing crosslink structure in advanced tire and industrial rubber articles by modulating cure kinetics and final elastic properties.

    Industry compliance standards

    • ASTM D4678: Processing Aids in Rubber
    • EU Regulation (EC) No. 1907/2006 (REACH, Annex XVII—accelerator usage restriction)
    • ISO 9001:2015 (quality control and batch traceability)

    Typical usage ratio

    • 0.2–0.7 parts per hundred rubber (phr) in the accelerator synthesis stage, adjusted for compound performance and end product mechanical requirements

    Downstream process integration

    • Incorporated into pre-blend reactor before main rubber compounding; used to prepare secondary accelerators with rapid induction characteristics, followed by pelletization or direct dosing into internal mixers

    Final product types

    • High-performance tire compounds, technical sealing materials, conveyor belt stock

    5. Synthesis of Functionalized Phosphorothioate Flame Retardants

    Producers of specialty flame-retardant additives convert DECPEDTP as a building block in dialkyl phosphorothioate series, which serve in engineering thermoplastic and flexible PU foam applications. The tailored phosphorus-sulfur composition offers smoke suppression and char promotion, suited to high-performance compliance requirements in electronic enclosures and transport interiors.

    Industry compliance standards

    • UL 94: Safety of Flammability of Plastic Materials
    • IEC 60695-11-10: Fire Hazard Testing
    • RoHS Directive (hazardous substance limitation)

    Typical usage ratio

    • 3–10% by weight in flame retardant masterbatches, optimized via cone calorimetry for target Limiting Oxygen Index (LOI) and smoke index ratings

    Downstream process integration

    • Functionalized during early-stage phosphorus integration steps, then isolated, purified, and introduced as an additive to plastics compounding extruders or PU foam blending tanks

    Final product types

    • V-0 rated engineering thermoplastics, flame-retardant polyurethane foams, flame-resistant molded components for electronics and vehicle cabins
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    Certification & Compliance
    More Introduction

    O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate: A Closer Look from the Manufacturing Floor

    Hands-On Knowledge: What Goes Into Crafting O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate

    Years of steady work with O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate have shown us more than just chemical formulas and datasheets. This compound—often referred to by its shorthand in production circles—stands out not only because of its structure but also because of how it performs when it hits the ground in real-world applications. In our line, every batch is the result of control, observation, and old-fashioned know-how.

    Looking at this product up close, the structure combines diethyl dithiophosphate with a phthalimidoethyl group, forming a molecule that delivers a particular set of properties for agrochemical work, especially for those engaged in pesticide and intermediate production. Over the years, producers aiming for reliable and predictable reactions have chosen this compound for more than just its utility. They trust what goes into it and what keeps impurities out.

    Manufacturing Mindset: Model and Specifications from the Inside

    Our typical offering carries the model DECPD-01, coming off the line with purity above 98 percent, based on batch consistency and reaction conversion rates. Crystallization and drying remain the stages demanding the most care; much can go wrong if temperature control wavers or moisture slips in. We track color, viscosity, and byproducts at these steps, always ready to tweak heat or draw off unwanted fractions to protect the product profile.

    You learn early that detailed in-process monitoring—beyond the minimum—isn’t a luxury. Without rigorous temperature recording and solvent recycling during synthesis, it’s easy to let traces of unwanted phthalimide analogs or unreacted dithiophosphoric acid slip through. Every kilogram that crosses the packing table clears a full pass of active-content titration and chromatographic purity checks.

    Specifications matter to us because end users have told us—sometimes bracingly—about the messes that come from batch-to-batch swing. Standardizing on a distinct aromatic odor and a melting point range that rarely wobbles means fewer phone calls about stuck reactions or separation trouble down the line. Each lot comes granulated, packed moisture-tight, and stored away from light and heat sources, all learned from direct losses and late-night troubleshooting.

    Field Performance: The Use Case That Shapes Everything Else

    Chemists who need a flexible intermediate for organophosphorus pesticide synthesis have come to expect a certain reactivity from O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate. In our experience, the unique combination of a phthalimide ring with the dithiophosphate group brings a reliable step-change in selectivity and yield during downstream chlorination and amidation. Compared to more basic dithiophosphate analogs, this molecule resists hydrolysis and atmospheric moisture better, a boon for plant operators working through humid seasons or in facilities without full climate control.

    Every production run has shown us new practical angles. Formulators mention that this compound outperforms more volatile phosphorus esters when used as an intermediate or precursor: It holds up under extended storage, keeps reaction routes clean, and doesn’t give away phosphorus content through side volatilization. We put time into ensuring solvents and packaging materials won’t cause leaching or surface degradation, since off-odors and color changes never go unnoticed by experienced hands downstream.

    Those working with crop protection or special-purpose agrochemicals reach for this intermediate during the formulation of broad-spectrum pesticides where stable sulfur-phosphorus linkages are required. One reliability mark: It stands up under multi-step syntheses, delivering consistent conversion without flooding reactors with unwanted byproducts.

    Lessons from the Floor: Quality Matters More Than Labels

    Plenty comes down to what’s below the label. Each kilogram produced has gone through reactors and driers under direct human supervision, not just algorithms or remote monitors. When impurities slip in—through water contamination or reactant quality swings—the headaches multiply through the whole supply chain. Recalls, wasted man-hours, abandoned batches: Too many in the sector have seen shortcuts sneak up as bigger problems, so we invest in deep cleaning, strict storage, and source vetting.

    Replication counts as much as innovation. When teams from formulation labs call, they ask about real-world handling, unexpected storage behaviors, and actual purity—not numbers on a spec sheet. Practical tests, like repeated exposure to air and active blending trials, have helped us flag drift and design better stabilization routines. The most valuable lessons often come from failed batches, which teach much more about moisture ingress and atmospheric oxygen than any conference or sales literature.

    Raw material selection forms the spine of robust production, especially in organophosphorus chemistry. Each batch of ethanol, phosphorus pentasulfide, and phthalimide derivative is picked for lot consistency, traceability, and impurity profiles—not just bulk pricing. We have turned away bulk shipments rather than lower the guard on these points, learning from both costly mistakes and client feedback about off-spec product.

    What Sets This Product Apart in the Marketplace

    Working alongside a crowded market of phosphorus derivatives, O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate shines through its balance of storage stability, reactivity, and impurity control. Ordinary dithiophosphates tend to fight moisture—and lose in high-humidity or ambient storage—but our process ensures this compound resists caking and breakdown, maintaining a free-flowing texture and reliable melting profile.

    We have watched users compare its behavior to standard O,O-diethyl dithiophosphate. Fewer formation issues arise with polymeric or tar-like byproducts, even after prolonged storage. Compared to less functionalized analogs, the phthalimide ring greatly reduces batch variation during end-use transformations, dropping failure rates and keeping conversions close to theoretical yields in actual plant-reported results.

    Shelf-life speaks to raw process discipline. Colleagues in the field often mention how brownish, clumpy substitutes force reprocessing or filter blockages. With control over reaction temperature and tight drying, we bring the shelf-life far beyond six months under ordinary warehouse conditions—anything that doesn’t hit that bar goes straight into internal rework, not the open market.

    Our team runs practical feedback loops with downstream users, so fine-tuning has moved beyond theoretical “specs” toward on-site troubleshooting and collaborative recipe adjustment. That means lower solvent consumption and less scrapped material in the reactors of our buyers, not just rhetoric about “premium” ingredients.

    Addressing Real-World Challenges and Solutions

    Nobody gets every step perfect the first time, and as a manufacturer, we face recurring hurdles with process safety, environmental exposure, and supply chain stability. The synthesis chain for this compound passes through steps sensitive to runaway exotherms and toxic intermediates. Our plant phases gear up with multiple containment backups, operator training, and incident-prevention routines—from intake inspection of primary reactants to onsite neutralization of phosphorus waste byproducts.

    Chlorinated intermediates demand air handling and closed transfer to protect operators and the community. Venting and scrubbing happen at every possible nexus, not just on “problematic” days. Teams scrutinize reactor emissions, waste liquors, and spent solvents, both to comply with legal ceilings and because we live near the same water tables as everyone else. Solvent recovery has shifted from a compliance checkbox to an operational habit that cuts input costs while reducing externalized harm.

    Supply chain rocks and rolls. Reliable partners who lock in quality make planning easier. Whenever shortages hit, we lean on diversified source pools for both reactants and packaging supplies. Spot procurement seldom brings cost savings when it means backtracking batches or missing delivery commitments, so maintaining solid supplier relationships has proven worth every annual negotiation and emergency scramble.

    Batch failures used to drag down whole quarters—now, process review teams dig in, comb through logs, and update standard operating routines on the fly. The pressure to keep up with shifting market requirements and regulatory changes runs high, but direct factory experience shines through. Better automation only helps as long as operators know when signals don’t make sense and catch the manual override at the right time.

    Knowledge Gained from Industry Cooperation

    Direct dialogue with downstream users has shaped both our process and product standards. Pesticide formulators relay field-level results, reporting how our dithiophosphate intermediate blends, crystallizes, or reacts in various matrices. This feedback helped us sort out sticking points, like releasing product in vacuum packaging or shifting away from certain anti-caking agents that cause flow issues during end use.

    Environmental and safety compliance gets real very quickly. Regulatory file reviews often bring up solvent trace limits, byproducts, and batch stability data. We’ve learned to keep analytical records ready and transparent—showing not just average values but also how we respond to outliers, unexpected storage shifts, or inbound raw material inconsistencies. Collaboration with practitioners across the industry helps set practical targets for product quality, while regulatory teams bring their own focus: demonstrating performance not just through internal tests but through reproducible, field-linked data.

    Years of production and feedback cycles build a better product than any generic catalog entry. Field trials and user reports go straight back into pilot runs, so that performance improves not just on prescribed metrics but in the actual environments where these chemicals matter. Revenue follows reliability, and trust builds batch after batch, customer after customer, through direct responsiveness rather than marketing promises.

    Building Trust through Process Transparency

    As manufacturers, we often field questions about traceability, batch documentation, and process controls. There remains a strong market demand for direct answers about how each unit is made, tracked, and released. Full transparency means logging batch records, critical control points, and change-overs in real-time databases, so every lot shipped can be traced back to raw inputs and reaction timings. This is not just internal bookkeeping; it shows buyers and auditors that quality and reproducibility are real things, not just box-ticking.

    We’ve found that teams appreciate straight talk about what goes wrong and how those problems are fixed. When a batch falls short—by purity, color, or other customer-identified parameter—it holds for internal recycling or rework, never patched up or blended. Tracing any deviation back to the source, whether reactor calibration or supplier hiccup, builds confidence with partners who need to trust our product inputs within their own critical processes.

    Opportunities and Outlook: Where This Compound Fits Going Forward

    As agricultural techniques evolve, the demand for targeted pesticide compounds that require stable, reactive intermediates only grows. We watch research teams shift toward more selective, environmentally benign chemistries – and this drives us to keep refining our O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate offering. Each new regulatory update, user report, or shift in regional practices gives us more data to push for lower impurities, better shelf stability, and easier integration into both established and emerging synthesis routes.

    Tighter spec requirements also demand improvement in analytical capabilities. We’ve invested in high-performance chromatography and in-line process analytics, aiming for comprehensive profiles on each lot. This lets us guarantee material right down to trace component thresholds, shrinking room for error and helping end users meet their own tough ingredient regulations. As regional environmental rules tighten, ongoing work to minimize waste streams, improve capture rates, and design cleaner synthesis into each cycle has become part of everyday operations.

    Summing Up the Real Differences: From Plant to End User

    Stepping back, O,O-Diethyl-S-(2-Chloro-1-Phthalimidoethyl) Dithiophosphate reflects decades of accumulated plant wisdom, hands-on troubleshooting, and open communication with real users—not just desk-bound product promotion. The quality, handling experience, and performance consistency each trace back to lessons written in sweating summer shifts, long nights chasing process drifts, and close calls with regulatory shifts. Every kilogram comes from careful choices, stubborn adherence to in-house standards, and firm refusal to cut corners in pursuit of easier numbers.

    No chemical solution fits every need, but by investing in controlled processes, honest field feedback, and ongoing collaboration, we deliver an intermediate that works as promised—again and again—in the real world of chemical manufacturing. That’s the ground truth we can stand behind, shipped in every unopened drum and confirmed by every repeat buyer who tells the next team, “This one works the way it’s supposed to.”