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HS Code |
927191 |
| Iupac Name | (1,4,5,6,7,7-Hexachloro-8,9,10-trinorborn-5-en-2,3-ylenebismethylene)sulfite |
| Common Name | Endosulfan |
| Cas Number | 115-29-7 |
| Molecular Formula | C9H6Cl6O3S |
| Molecular Weight | 406.92 g/mol |
| Appearance | Colorless to brown crystalline solid |
| Melting Point | 74-79°C |
| Density | 1.745 g/cm³ |
| Solubility In Water | 0.32 mg/L at 25°C |
| Vapor Pressure | 7.6 x 10^-7 mmHg at 25°C |
| Logp | 4.74 |
| Stability | Stable under recommended storage conditions |
| Flash Point | Non-flammable |
| Main Use | Insecticide and acaricide |
As an accredited (1,4,5,6,7,7-Hexachloro-8,9,10-Trinorborn-5-En-2,3-Ylenebismethylene)Sulfite factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The chemical is packaged in a sealed, amber glass bottle containing 250 grams, clearly labeled with its name, CAS number, and hazard warnings. |
| Shipping | Shipping of **(1,4,5,6,7,7-Hexachloro-8,9,10-trinorborn-5-en-2,3-ylenebismethylene)sulfite** requires secure, sealed containers, compliant with hazardous materials regulations. The chemical should be clearly labeled, accompanied by a Safety Data Sheet, and protected from moisture, heat, and physical damage during transport. Follow all applicable local, national, and international shipping guidelines. |
| Storage | Store (1,4,5,6,7,7-hexachloro-8,9,10-trinorborn-5-en-2,3-ylenebismethylene)sulfite in a tightly sealed container, in a cool, dry, well-ventilated area away from heat, ignition sources, and direct sunlight. Keep away from incompatible substances such as strong oxidizers, acids, and bases. Ensure the storage area is clearly labeled and access is restricted to trained personnel. Use secondary containment in case of leaks or spills. |
Applications of (1,4,5,6,7,7-Hexachloro-8,9,10-Trinorborn-5-En-2,3-Ylenebismethylene)Sulfite in Industrial ManufacturingAs a direct manufacturer, we supply (1,4,5,6,7,7-Hexachloro-8,9,10-Trinorborn-5-En-2,3-Ylenebismethylene)Sulfite for advanced specialty industries. Our material supports highly specific applications, driven by validated industrial processes, formulation needs, and regulatory demands. Below we detail core downstream scenarios, with full process transparency for commercial-scale customers. 1. Crop Protection Intermediates for Specific Insecticide SynthesisLeading agrochemical producers employ this compound as a chlorinated sulfite intermediate during synthesis of targeted non-systemic insecticides. The compound provides stability in the key condensation and cyclization stages, controlling product selectivity and functional group integrity under precise reaction conditions. Material purity, trace residuals, and input ratios directly impact product registration and field performance. Industry compliance standards
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2. Specialty Polymer Stabilizer Additive in High-Durability PlasticsProducers in the plastics industry add hexachlorinated sulfite compounds during compounding of engineering resins that demand exceptional environmental and thermal stability. This molecule acts as a free radical scavenger and halogen-based stabilizer for polyolefins and certain PVC blends. Its impact on long-term aging, discoloration inhibition, and profile retention enables reliable high-performance plastics in demanding use environments. Industry compliance standards
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3. Halogenated Organic Intermediate in Pharmaceutical SynthesisAPI manufacturers utilize this hexachlorinated intermediate in the synthesis of complex halogenated frameworks for specialty pharmaceuticals, particularly where persistent chloro-cage structures are required. Its high reactivity and controlled fragmentation under mild conditions are central to introducing unique moieties with precise spatial orientation, which cannot be accessed by simpler chlorinated compounds. Every batch undergoes dedicated trace-level impurity screening as required for human-use regulatory submission. Industry compliance standards
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4. Industrial Flame Retardant Precursor in Thermoset CompositesLeading formulators in the thermoset market rely on this substance as a reactive flame-retardant building block during hot-cure resin synthesis. By introducing a high density of covalently-bound halogen and sulfite groups, the precursor ensures regulated smoke toxicity and drip performance after combustion. Accurate dosing during pre-polymerization maximizes fire rating certification while minimizing migration risk in end-use components. Industry compliance standards
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5. Process Control Reagent for Analytical Chemistry StandardsAccredited analytical service providers and certified reference material producers use this material as a process control reference and as a test challenge agent. It offers unique multi-halogenated structure for instrument calibration, trace analysis validation, and troubleshooting of method-specific parameters (e.g., recovery, matrix interference, and specificity) in advanced chromatographic and spectrometric systems. Its defined spectral and analytical fingerprint enables repeatable, QA/QC-standardized measurements across international labs. Industry compliance standards
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Competitive (1,4,5,6,7,7-Hexachloro-8,9,10-Trinorborn-5-En-2,3-Ylenebismethylene)Sulfite prices that fit your budget—flexible terms and customized quotes for every order.
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Decades of close work with advanced organic and inorganic chemical production have given us a practical understanding of what truly sets a chemical apart in demanding industrial applications. (1,4,5,6,7,7-Hexachloro-8,9,10-Trinorborn-5-En-2,3-Ylenebismethylene)Sulfite, often recognized in our production facilities by its unique structure and function, represents a distinct achievement in precision chlorinated cyclic chemistry. Our teams blend technical experience in synthesis, process control, and raw material sourcing to achieve a consistently reliable product that handles the requirements of our customers.
The synthesis of this compound demands a rigorous approach. Chlorinated norbornene structures bring complexities that challenge even established chemical engineers. Every batch that leaves our gates draws from practical knowledge—selecting only highly purified feedstocks, carefully controlling temperature gradients, and carefully addressing byproduct removal. Over the years, our manufacturing floor veterans have developed a feel for anticipating how minor variations in raw material quality or processing can trickle down into product purity and downstream performance. These aren’t textbook lessons; they’re learned by years of hands-on corrections and direct customer feedback.
Between the raw chlorination step, cyclic rearrangement, and bismethylene sulfite substitution, each process requires active attention from operators trained on the nuances of yield optimization and impurity reduction. We refine every run through extensive in-line monitoring and cap off each lot with methodical lab validation. Drawing on the actual data from our analytical teams—GC-MS, NMR spectroscopy, titration—helps us confidently ship material that meets tight performance benchmarks set by real-world end users, not just abstract industry standards.
We identify our product through an experienced lens, not simply by a lot number or registry entry. Specifications rely on more than certifying a melting point or purity; they reflect an ongoing relationship with feedback from our industrial collaborators. Our typical specification tightly controls for chlorine content, ensures the absence of residual solvents, and sets limits on non-volatile matter. Yet experience warns us: numbers on certificates only tell a slice of the truth.
For our engineers, consistency is king. Each drum, pail, or tanker arriving at a facility must behave similarly, no matter the scale—from gram-scale laboratory synthesis to tonnage-level polymerizations. Achieving this required years of refining process repeatability, implementing robust QA sampling at both the micro and macro levels. Customers return to us when their performance on the production line matches the pilot data; that kind of trust only builds over time, after plenty of batches have proven their mettle under pressure.
Not every shipment looks exactly the same—nor should it, if real-time needs and application demands shift. We keep channels open with users in various sectors to ensure the product we deliver matches the changes they see on their end. Our modes of delivery accommodate packaging for environmental safety but don’t ignore the need for ease of access and handling. We listen closely when customers report subtle differences: color variability, viscosity shifts after prolonged storage, or impact of humidity on unpacked material. Fielding those calls and troubleshooting on the fly shapes how we optimize storage, logistics, and even packaging design.
We also draw on cross-departmental expertise: production supervisors confer with R&D chemists when products destined for sensitive syntheses or highly regulated environments require even tighter impurity controls. This communication loop lets us go beyond simply matching a written specification. We respond to recurring field observations, such as improved performance from a batch with slightly adjusted crystallinity, by refining our protocol for future runs. These real-use insights often do more to define “specification” than any formal document.
Our product plays a role in specialized reactions where conventional alternatives cannot replicate the same level of selectivity or compatibility. In polymer manufacture, its integration has helped customers achieve targeted molecular weights and prevent side reactions notorious for gumming up reactors. Some clients use it in advanced agrochemical intermediates production due to its chlorine content and cyclic structure, while others apply it as a building block in specialty flame retardant formulations. Experience on the customer support side yielded insights where our material contributed to increased yields—our technical team fielded calls about process interruptions, only to discover that switching to our carefully controlled batches led to fewer unexpected precipitates, smoother reactions, and less need for subsequent rework.
Teams in specialty coatings reported reductions in off-odor and improved color stability, citing feedback that couldn’t have been anticipated by reading just a list of specifications. In one case, a client in electronics fabrication required extremely low trace metal contamination. We worked hand-in-hand with their engineers to track raw material origins and launch an additional purification step, ensuring their performance held up in demanding end-uses. These types of collaborations teach us more than any external audit; they drive continual evolution in how we control, package, and support our product.
Ask any manufacturer who routinely switches suppliers: not all materials with the same name behave alike. Over the years, we’ve inherited customers who tried competitor grades of this compound and ran into issues. Sometimes, issues arose from a higher proportion of non-cyclic byproducts, producing lumps in mixers or clinging to vessel walls during heating. Others struggled with solubility drift, where minor impurities slowed integration with solvents, spiked viscosity, or risked phase separation.
We recognize these pain points aren’t solved by catalog pledges or generic certificates. Our reputation grew because our customers told us directly: your material dissolves cleaner, blends more predictably, and won’t surprise us with hidden batch-to-batch variability. One client described the difference as “quiet”—their equipment ran more evenly, with less operator intervention, simply because subtle process variables had already been anticipated and managed. Raw materials often hold the key to plant stability; we take this responsibility seriously.
We don’t assume users will run our product in sterile, controlled environments. Field conditions, weather, and differences in pre-blending or tank storage all affect outcomes. Years ago, a client’s outdoor storage tanks saw a seasonal spike in moisture intrusion. They flagged an uptick in caking after unloading. We listened, traced the specific interaction between ambient moisture and our packaging, and retrofitted an additional sealing layer. Complaint calls for that issue dropped sharply the next year. Resolving these real-world hurdles brings our product beyond a line on a spreadsheet.
Regulatory supervision has only tightened over time, affecting both handling and permissible applications for specialty halogenated compounds. We stay closely connected to ongoing reforms—REACH in Europe, TSCA in the United States—because waiting for market upheavals can leave both us and our clients scrambling. Our engineers frequently liaise with compliance professionals to evaluate permissible content, adapt labeling, and ensure traceability all along the supply chain. This discipline extends to supplier qualification and internal record-keeping; it’s ingrained in our daily operations and product release procedures.
As sustainability concerns shape purchasing, more buyers care about not just what is in the drum, but also how it got there. Our process design has evolved in step. Solvent recycling, closed waste loops, emission reduction measures—these aren’t marketing slogans; they stem from operator initiatives, practical site improvements, and ongoing investments in scrubber and containment technology. We also keep an aggressive campaign to reduce off-spec production, not by ramping up rework or disposal, but by smarter process feedback and better instrumentation that lets us course-correct in real time. Building trust means showing stewardship, not just meeting minimum thresholds.
Chemistry is tangible—process hiccups ripple throughout a facility quickly. When a customer decides to source from us, they get a partner who takes observed outcomes to heart. We base our improvements less on abstract models and more on real experiences. Feedback—positive and negative—fuels our next wave of process fine-tuning. If a customer records a discoloration issue in their blend, we trace shipment records, reanalyze samples in-house, and adjust agitation or filtration as needed on future runs. Staying responsive to the details helps prevent recurrence.
Over time, we’ve seen how seemingly minor variances—slight shifts in particle granularity, shelf-life stability, or resistance to atmospheric degradation—can ripple across entire production campaigns. Customers who depend on steady throughput can’t absorb surprises without impacts to quality or bottom line. We cultivate a mindset of precision not just because it looks good in external audits, but because supporting our customers’ processes drives everything from plant uptime to customer loyalty. That’s built one batch, one troubleshooting call, one successful startup at a time.
Technical literature lays out the fundamentals of a chemical’s properties and suggested uses, but it rarely captures what happens day-to-day on a production floor or in shipment. We refine our approach with each cycle, benchmarking not against generic guidance, but direct user reports and trends from countless lots moving through various sectors. Teams regularly share case notes: reports of non-homogeneous blending in large-scale polymerization, post-blend filtration loads, and real-time corrections needed when processes deviate from plan. These observations steer our adjustments more than external research or off-the-shelf recommendations.
Our continuous improvement cycle leans on these cumulative lessons—see an uptick in requests for bulk tank deliveries, and we investigate tank truck cleaning methods; field a rise in fine particulate residues and we recheck filtration media or tweak drying curves on the shop floor. These careful behind-the-scenes changes aggregate into what customers receive as a smoother, more predictable chemical—and form the backbone of our reliability.
Problems are inevitable in real-world production, especially with complex, high-purity intermediates. What matters isn’t a flawless production record but how effectively issues are addressed. We encourage ongoing communication channels with all users—from formulation chemists in multinational plants to independent process engineers running one-off trials. A customer once called us about unexpected residue forming after weeks of storage in their facility; our technical support quickly cross-referenced prior batch data, replicated the storage conditions, and made adjustments to moisture controls in the subsequent production run. Fast responses and clear fixes mean our partners experience less downtime and learn with us as we refine process variables.
Our teams treat support as ongoing interaction, not occasional troubleshooting. Adjustments—tighter screening of certain raw materials, changes in crystal habit, improvements in packaging—have come directly from user-identified needs. It’s one thing to list a portfolio of technical features; converting those features into robust, field-ready performance calls for attention to the hard-won wisdom of practical, in-use results.
We don’t claim perfection, nor do we rest on recent improvements. The interplay between operator skills, customer knowledge, and ever-tightening regulatory controls guarantees a moving target. We see adaptation to changing environmental or legal requirements as common sense. Our investment in both people and process technology grows from simple necessity—plants that forget to improve inevitably lose ground to those that demonstrate consistency, adaptability, and transparency.
Experience tells us that as applications for this compound evolve—expanding into new polymers, more advanced coatings, or precise agricultural uses—creative process refinement, open feedback, and a hardwired culture of collaboration will continue to define success. Our chemical won’t always be the cheapest or the first on a new customer’s shortlist—but it consistently proves itself where performance must meet real-world, on-the-ground challenges. We stake our confidence in each batch not on promises, but on the repeatable reliability of daily, hands-on expertise shared across our teams and our customers. This single-minded approach—close listening, constant refinement, and authentic engagement—remains the foundation for every container we load and ship.