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HS Code |
258871 |
| Chemical Name | 3-Chloro-1-Butene |
| Molecular Formula | C4H7Cl |
| Molar Mass | 90.55 g/mol |
| Cas Number | 107-05-1 |
| Appearance | Colorless liquid |
| Boiling Point | 73-74 °C |
| Melting Point | -135 °C |
| Density | 0.885 g/cm³ |
| Refractive Index | 1.418 |
| Flash Point | -20 °C |
| Solubility In Water | Insoluble |
| Vapour Pressure | 64 mmHg (20 °C) |
| Odor | Sweet, chloroform-like |
As an accredited 3-Chloro-1-Butene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A 500 mL amber glass bottle with a secure screw cap, labeled "3-Chloro-1-Butene," includes hazard and safety information. |
| Shipping | 3-Chloro-1-butene is shipped as a hazardous material due to its flammability and potential health risks. Transport is typically in tightly sealed, corrosion-resistant containers under cool, well-ventilated conditions. Compliance with local, national, and international regulations—such as DOT, IATA, or IMDG—is mandatory to ensure safe handling and transit. |
| Storage | 3-Chloro-1-Butene should be stored in a cool, dry, well-ventilated area, away from heat sources, sparks, or open flames. Keep the container tightly closed and use corrosion-resistant packaging. Store separately from oxidizing agents, acids, and bases. Avoid exposure to direct sunlight and ensure proper grounding to prevent static discharge. Always follow relevant chemical storage regulations and guidelines. |
Applications of 3-Chloro-1-Butene in Industrial Manufacturing3-Chloro-1-Butene serves as a specialized intermediate in several key industrial manufacturing sectors. Its unique reactivity enables targeted synthesis routes, precise process control, and production consistency. Below we detail its principal downstream use-cases, regulatory considerations, processing routes, and end-use applications. 1. Synthesis of Agrochemical IntermediatesManufacturers in crop protection utilize this material as an alkylating intermediate in the synthesis of various herbicide and insecticide molecules. In this segment, 3-Chloro-1-Butene reacts under controlled temperature and pressure with specific nucleophiles to introduce a butenyl chain, forming precursors for active agrochemicals. Reaction control and purification steps are critical to maintain tolerances imposed by regulatory residue directives for agricultural chemicals. The downstream yield and purity directly influence the effectiveness and compliance of final agrochemical products. Industry compliance standards
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2. Production of Pharmaceutical Building BlocksIn pharmaceutical API manufacturing, this compound acts as a chlorinated butene source for N- or O-alkylation in advanced intermediate steps. Synthesis protocols demand precise addition rates and stringent purification staged to exclude unreacted chlorobutenes. Regulatory filings require full traceability for sourcing, handling, and waste management, alongside adherence to GMP and pharmacopoeial compendia. Manufacturers optimize ratios based on the specific reactivity of the target molecule and impurity profiles mandated by global pharma authorities. Industry compliance standards
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3. Manufacture of Polymer and Elastomer AdditivesPolymer producers incorporate this raw material as a functional monomer precursor or crosslinking agent, enhancing chain mobility and chemical resistance in specialty elastomers and resins. It is introduced during controlled copolymerization steps or in grafting modifications to achieve precise block compositions. QC protocols monitor monomer conversion and consistency to meet industry standards. Formulation chemists adjust feed ratios based on polymer backbone types and intended performance of additives in downstream plastics. Industry compliance standards
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4. Manufacture of Organic Synthesis Intermediates for Flavors and FragrancesSpecialty chemical companies leverage this compound as a chain-elongation and functionalization intermediate when producing high-purity aldehydes, alcohols, and related derivatives for the flavor and fragrance market. Highly selective addition and oxidation reactions require a narrow feed specification and efficient removal of chlorinated byproducts. Regulatory compliance includes alignment with food contact and purity directives, while downstream producers validate absence of residue in the final concentrate. Process engineers regulate dosing and temperature profiles to maximize yield and step safety. Industry compliance standards
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From our facility lines, 3-Chloro-1-Butene steps out as a crucial building block, showing its value in both bulk production and specialty applications. Each batch we manufacture highlights the importance of reliable process controls and the direct connection between careful synthesis and the end product’s strength. Our teams monitor purity and stabilities vigorously, keeping an eye on the chain from raw material selection to precise distillation. For us, this isn’t just theory—slight variances in input conditions or reaction handling easily ripple into downstream performance, and customers count on us not to cut corners.
In our rooms, the main topic isn’t buzzwords or trend chasing, but the daily improvements in batch consistency and how each lot affects polymerization, pharmaceuticals, and fine chemicals. 3-Chloro-1-Butene draws interest particularly in the making of intermediates for synthetic rubbers, specialty plastics, and certain pharmaceutical syntheses, where it finds use as a chlorinated olefin and key alkylating agent. Our approach focuses squarely on reactivity and specificity, not just stated purity, and repeatability across production cycles. Technicians and operators view these outcomes each day, reflecting our belief in taking results seriously—not simply meeting a minimum bar.
With 3-Chloro-1-Butene (CAS 109-69-3, molecular formula C4H7Cl), our main goal is straightforward: deliver a product with narrow-range purity and controlled moisture and color that won’t set off chain reactions downstream. We produce at industrial scale, matching consistent lot testing with daily field feedback. Physical characteristics—boiling point, refractive index, residual impurities—draw feedback cycles from the lab into our reactors on the floor. Years spent refining dehydrochlorination, distillation, and storage methods are not an afterthought but a mainstay. Our analytics department constantly compares gas chromatography results, tracking lot numbers and refining for the kinds of off-odors or coloration that usually get picked up only by a trained nose.
It comes clear that purity doesn’t mean the same thing everywhere. For 3-Chloro-1-Butene, “purity” stretches beyond percent value. We talk with those at formulation plants, textile fiber factories, and resin R&D teams. They share stories about slowdowns from unintended isomer ratios or moisture triggers. Listening to those experiences shaped how we run drying cycles, extend post-synthesis filtration, and document trace level elements. Strict moisture content proves critical, especially in pharmaceutical pathways where downstream yield may drop from seemingly minor levels of water.
Customers looking for 3-Chloro-1-Butene usually ask for a transparent liquid, meeting rigorous specifications—clarity, absence of suspended matter, and precise gravimetric properties. In polybutene and polychloroprene production, these factors hold the line between a successful polymerization and an expensive do-over. We’ve seen first-hand how even minor differences in color or content turn into gelling problems or batch-to-batch inconsistency, so our attention never wavers from reporting and tightening those specification windows.
Commercial applications start with intermediate use in synthetic rubbers, and extend quickly into fine chemicals and pharmaceutical synthesis. For those working in elastomer fields, 3-Chloro-1-Butene forms a chain-link—an essential monomer or co-monomer. In our conversations with long-term clients, they highlight the need for high conversion efficiency in producing high-strength polymers. Their focus on feedstock integrity aligns closely with ours, because rework or scrap raises costs and downtime that no one wants to face.
Pharmaceutical manufacturers come for 3-Chloro-1-Butene with one eye on our batch analysis, especially isomeric purity and residual solvent values. Some compounds developed in our region rely on exacting standards; by collaborating on routes for API intermediates, process engineers become partners, not just invoice numbers. This two-way feedback changes how and when we intervene in our manufacturing steps, ultimately improving yield and lowering downstream troubleshooting.
Interactions in the plastics and fine chemicals sector underline the degree to which batch-to-batch reliability underpins business decisions. We learn from processors who encounter blockages from variable reactivity, so we return to our process maps and make direct changes, never hesitating to pull a lot that slightly deviates. Our work makes a difference in pipeline smoothness, in the deft handling of reactive intermediates, and in the safe operation of union plants.
In the alphabet soup of C4 chlorinated olefins, 3-Chloro-1-Butene earns its place due to a pairing of chemical reactivity and controllable side reactions. We routinely compare our product to 1-chlorobutene, 1,3-butadiene, and other C4 analogs, particularly for curing agents, polymerization precursors, and alkylating tasks. The selective terminal chlorination of 3-Chloro-1-Butene offers more manageable reactivity for most alkene functionalizations, resulting in higher yields and cleaner downstream processing.
Our polymer sector clients frequently note improvements in control over polymer microstructure. The terminal position of the chlorine atom in 3-Chloro-1-Butene brings added flexibility to catalyst selection and tailoring molecular weights, especially compared to internal chlorinated or brominated butenes. This subtle control delivers downstream properties like impact strength or elasticity, without sacrificing batch operability or driving up waste recovery processing time.
From experience, we see that reactivity with nucleophiles remains highly predictable, which proves useful for many Grignard or Suzuki cross-coupling reactions in the labs of our customers. The difference comes through in faster, more controlled reactions—delivering not only technical gains but real operational safety improvements. Unwanted side reactions or runaway polymerizations have real-life consequences, such as increased maintenance costs, slower line changeovers, and a rise in safety incident risk. By sticking closely to rigorous manufacturing practice, we help keep critical production moments predictable.
Operations at scale reveal challenges that smaller producers or traders don’t always notice. There are no shortcuts with chlorinated butenes—minor shifts in raw material quality or process temperatures show up rapidly in isomer composition and byproduct content. We’ve spent many cycles retrofitting our distillation trains and rethinking equipment layouts. Our operators have adjusted thermal control points, relay alarms, and sampling intervals. Each detail we adjust comes from hard-won lessons—reactor fouling, vent line blockages, or small shifts in atmospheric pressure that play havoc with batch specs.
Our logistic team works hand-in-hand with process staff, keeping packaging materials dry and air-tight, essential due to the sensitivity of 3-Chloro-1-Butene to moisture pickup and atmospheric oxidation. Leaks or poor container choices transform a shipment from asset to liability; we only release product in lined steel drums or isotanks validated for resistance to corrosive vapors. Importing a strict system for lot control and tracking lets us answer questions about shelf life or storage incidents with transparency. Feedback soon after unloading reveals if we need to revisit our packaging standards.
Customers and industry partners pay closest attention to regulatory profile, workplace safety, and documentation. Documents, such as certificates of analysis and safety sheets, come only after each release passes a double-check for specifications and potential contaminants. The broader trend toward regulatory tightening in both the chemical and pharmaceutical worlds feeds directly into our analytics staffing and in-plant lab investment. The cost for additional GC and NMR analyses is worth it compared to the potential hit of out-of-compliance shipments.
Compliance isn’t simply a box for us—every regulation adds a new control point for process steps and documentation. We partner closely with technical managers in customer plants to support their change control and validation protocols, sharing run data and incident investigations. Whether it’s harmonizing with European REACH standards or following strict local workplace exposure guidelines, our teams document real-time batch diagnostics and maintain retention samples for regulatory follow-up.
The spirit of improvement drives ongoing changes across our operations. Collaborating directly with industrial users—whether from R&D teams trialing new elastomers, or large-scale pharmaceutical ingredient producers—keeps us honest. Technical dialogue and onsite troubleshooting leaves no ambiguity about what works and what still needs an upgrade in our supply approach. We make a habit to revisit every improvement with after-action reviews, not every season, but as soon as trends emerge in our customer or logistics feedback. We adopt their challenges as our own, whether it’s optimizing reactivity profiles, custom packaging, or further refining product purity.
For such an essential chemical, routine reviews with partners bring ideas for energy management, alternative feedstocks, or reduced waste treatment. We’ve acted on suggestions to reclaim more heat energy during the dehydrochlorination stage, not just for cost reduction, but for safety improvements. Tracing minor impurity pathways—olefin byproducts, trace chlorides—drives technical changes at the front end. These details seem small but pay back with greater consistency in end use, and better environmental performance across our sites.
Years of production experience teach that differences in origin reflect clearly at the user end—handling, reactivity, appearance, and even odor. Trader or re-bottled product often brings slips in trace impurity levels, delayed documentation, or hidden moisture pickup. As direct manufacturers, we routinely audit our upstream vendors, enforce full transparency on every drum, and document the chain of custody. The difference shows in direct support channels, in rapid response on specification queries, and in complete transparency on request.
We advocate for real user engagement as the only way to keep quality aligned with industry needs. Regular site visits, pilot sample dispatch, and shared technical troubleshooting provide a continuous improvement path. Such feedback preserves chemical integrity all the way from synthesis through application, and shields end users from the hassle and expense of uncertain supply or mismatched material.
From where we stand, the forward path for 3-Chloro-1-Butene lies in responsible stewardship as well as technical excellence. Each shift brings new challenges—demand spikes, evolving regulations, or shifts in end user applications. Our teams never grow complacent; the margin for error in high-purity chemical production sits at zero, and the stakes in pharma and specialty polymers are only growing. Drawing lessons from our end users, competitors, and even setbacks, we see continuous investment in plant upgrades and diagnostics as non-negotiable.
Innovation at our level springs from process refinement and data sharing, not from glossy brochures or market buzz. By opening our doors to audits, embracing third-party analytics, and sharing run histories with technical partners, we lean on a deep well of operational knowledge. Our investments in sustainability—recycling of byproducts, tightening energy balance, and reducing emission points—respond directly to marketplace and societal expectations. Day-in, day-out attention to process details ensures cleaner chemistries and safer outcomes for every party.
Our interactions with partners around the world teach the importance of responsible sourcing and maintaining robust logistics. No weak links exist in the safe movement of reactive olefins, especially 3-Chloro-1-Butene. End users expect airtight traceability, quick-turn batch data, and readiness to answer technical questions. Losing track of a single shipment or mislabeling a container carries risks that ripple out through whole operations. By anchoring our logistics under a single roof—coordinating between plant, lab, and delivery—we offer assurance that shipments land on specification, on time, free of surprises.
Supply chain shocks, including delays, regulatory holdups, or transport incidents, make visible the value of tight controls. We regularly run risk assessments and contingency drills, drawing on feedback from past incidents to fine-tune our dispatch and customer service. As new requirements emerge, including carbon tracking and digital documentation, we adapt with a goal of real transparency, not bureaucracy for its own sake.
The day-to-day reality of making and supplying 3-Chloro-1-Butene outstrips what spec sheets and brochures can show. Every detail in production—from feedstock control, reactor temperature discipline, down to final-package handling—directly matters to our customers’ products and safety. We’ve weathered periods of market shortages, regulatory tightening, and climbing performance demands, learning from each bump in the road. By keeping our focus sharp, valuing open technical exchange, and never treating any batch as “routine,” we continue supplying real solutions for those who depend on robust, application-ready chemical building blocks.
Looking ahead, our commitment involves more than labels and certificates. It’s felt in each batch delivered to customer sites, each troubleshooting call, each product sample that passes rigorous internal review. Whether it’s a new grade optimized for pharmaceutical pathways, or modifications to reduce carbon footprint or packaging waste, the story of 3-Chloro-1-Butene evolves together with our partners’ industries. For us, taking pride in manufacturing means never cutting corners, always exploring improvements, and standing by each kilogram as a statement of quality and reliability.