| HS Code | 971188 |
| Cas Number | 110-57-6 |
| Molecular Formula | C4H6Cl2 |
| Molecular Weight | 125.00 g/mol |
| Iupac Name | 1,3-dichlorobut-2-ene |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 137-139 °C |
| Melting Point | -57 °C |
| Density | 1.191 g/cm³ at 20 °C |
| Refractive Index | 1.462 at 20 °C |
| Flash Point | 39 °C (closed cup) |
| Solubility In Water | Insoluble |
| Vapor Pressure | 5.3 mmHg at 25 °C |
As an accredited 1,3-Dichloro-2-Butene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 1,3-Dichloro-2-Butene is supplied in a 500 mL amber glass bottle with a secure screw cap and hazard labeling. |
| Shipping | 1,3-Dichloro-2-butene should be shipped in tightly sealed containers, clearly labeled, and handled as a hazardous material. It must be protected from heat, open flames, and incompatible substances. Transport is regulated under relevant hazardous goods regulations, such as DOT or ADR. Emergency procedures must be in place in case of spills or leaks. |
| Storage | 1,3-Dichloro-2-butene should be stored in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible materials such as strong oxidizers. Keep the container tightly closed, properly labeled, and protected from direct sunlight. Use chemical-resistant containers and store at temperatures recommended by the manufacturer to prevent decomposition or pressure buildup. Handle with appropriate personal protective equipment. |
Competitive 1,3-Dichloro-2-Butene prices that fit your budget—flexible terms and customized quotes for every order.
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Working in the world of chlorinated olefins, experience has taught us one thing above all: consistency sets the foundation for trust. In the case of 1,3-Dichloro-2-Butene, we rely on years of fine-tuning reaction parameters and continual checks at every stage of production to keep our product inside a tight purity window. Our standard grade carries a minimum purity of 98%, which means process engineers and research chemists can depend on repeatable results every time they uncork a drum. Our own technical staff tests for key impurities like mono-chlorinated butene variants, water, and light ends. With column distillation and controlled reaction processes, we’ve driven down side products and keep our hydrogen chloride evolution well suppressed throughout manufacturing. Drawing a line on specification means customers take delivery of clean, stable material—free from fluctuations that can throw off batch consistency or trigger off-spec yields in downstream syntheses.
Not every grade or batch of 1,3-Dichloro-2-Butene serves the same purpose. What we produce goes into several reaction schemes, and the end-use frequently informs which purification track and packaging route we follow. In the synthesis of pharmaceuticals, fine chemical intermediates, and crosslinking agents, trace contaminants can change outcomes dramatically. Early in our career, we saw how insufficiently distilled product led a partner’s reaction to stall—an expensive lesson for both our customer and ourselves. The answer lay in upgrading our dehydration units and running additional fractional distillation columns, preserving high conversion rates without risking downstream catalyst poisoning. In polymer manufacturing and elastomer modification, customers look for stable double-bond chlorides to improve material properties. Our process delivers a predictable vinyl backbone. For chlorinated intermediates used in agrochemical precursors or solvent blends, we ensure the product meets both reactivity and storage requirements with strong antioxidant packaging and vapor tight seals that handle long journeys without loss.
Every crew member at our plant knows 1,3-Dichloro-2-Butene as more than lines on a specification sheet. The compound’s sharp odor lingers in memory, and firsthand experience with its lachrymatory properties means we never take shortcuts around containment and ventilation. Our site managers outfit loading stations, filling rooms, and transfer lines with concentrated scrubbing and evacuation systems, tuned specifically for this compound’s vapor pressure and reactivity. Years back, a minor release during an off-shift transfer prompted a root cause investigation. We overhauled our training program and implemented real-time leak sensing around all high-risk points.
Working in the industry, you quickly learn this is not a chemical for makeshift containers or careless valves. We thoroughly test drum seals, employ high-integrity ISO tanks for large shipments, and train haulers on what splitting a line or sudden agitation can cause. These operational details shape the experience customers have on site—nothing derails a plant’s start-up like a sudden, unplanned evacuation, all from a leaky tank. Avoiding disruptions is our priority as much as safeguarding health and environment.
Over decades, we’ve handled a full range of halogenated olefins, and the unique attributes of 1,3-Dichloro-2-Butene stand out. Its molecular symmetry and boiling range carry measurable advantages for both process scalability and endpoint product characteristics. Some engineers might reach for mono-chlorinated or tri-chlorinated butenes, expecting similar chemistry, but our records confirm that substitution pattern changes everything. For example, the 1,3-dichloro isomer executes selective addition and cross-coupling reactions that mono- and tri-chlorinated versions simply cannot match. Yield drops and unwanted byproducts appear when using a different chloride pattern, and most plant trials highlight longer run times and purification expenses in those cases.
Looking at storage and transport, the boiling point of our 1,3-Dichloro-2-Butene product gives several degrees’ cushion compared to isomeric or more highly chlorinated alternatives. This margin reduces vapor losses and makes regulatory compliance for tank car loading easier to achieve. For modification chemists seeking sturdy, reactive double bonds to enable chain extension or functionalization, they report that competing butenes fall short or require co-reactants that bump up batch costs and environmental burden.
Methods evolve, but the core lessons remain steady. Decades ago, the standard in chlorinated chemical manufacturing left a broader contamination footprint. Throughout our history, we’ve watched regulations tighten and customer demands focus – not out of shifting preferences, but because better performance comes with fewer impurities, tighter control, and less environmental release. We were among the earlier manufacturers to adopt closed-loop chlorination, not just to meet emission limits, but to capture recycle streams and reprocess off-gases. This approach brought cleaner air in our communities as well as higher nitrogen usage efficiencies inside the plant—saving on both environmental compliance and raw feed costs.
With 1,3-Dichloro-2-Butene, running leaner, cleaner, and safer has ripple effects right through the value chain. Cleaner product means less downtime for customers, fewer discards, lower risk of unexpected outcomes, and an easier path to certification for regulated sectors. Overhauling our effluent management to meet water discharge limits was a massive investment, but it has paid off yearly in regulatory stability and industry reputation. Customers have come to recognize the link between supplier discipline and their own operational reliability.
You never get the full picture from a datasheet. Fielding technical calls, troubleshooting batch performance, and customizing shipments for new process scales—these make up the true fabric of chemical manufacturing partnerships. Some have sought 1,3-Dichloro-2-Butene from intermediaries and found themselves caught in games of price speculation, packaging errors, or delays that shut down lines. Our direct relationships mean we can explain how a certain minor impurity crept up, or help customers adapt a formulation to a new regulatory environment.
Supplying a commodity like 1,3-Dichloro-2-Butene isn’t a hands-off affair. Our technical group regularly visits customers’ sites, participates in process reviews, and runs joint tests on new reactions before scaling up. We have witnessed many situations where a unique property of our material—be it isomeric ratio, UV stability, or safe handling recommendation—has allowed customers to save a whole batch or steer clear of compliance issues. These moments don’t show on a certificate of analysis, but they underpin successful, long-term collaborations.
The uses of 1,3-Dichloro-2-Butene stretch across sectors, but one common thread links them: reliability counts most where margins are thin and failure isn’t an option. One major area is as an intermediate in the production of cross-linking agents for the plastics and rubber industry. By actively reacting with unsaturated polymers, our product delivers tough, flexible chains that hold up in demanding automotive and industrial parts. The feedback from compounders confirms that the specific dichloro placement on the butene ring gives better reactivity than other chlorinated options. That translates into improved efficiency and performance for the end user.
Pharmaceuticals call for even greater attention to cleanliness. We know of several drug development projects where a consistent stream of dichlorinated C4 intermediate has made the difference between a viable new process and regulatory gridlock. Precise chlorination at both the 1 and 3 positions provides a crucial handle for further transformations, be it nucleophilic addition, elimination, or cyclization. Downstream enzymes, bases, and reagents often prove sensitive to low-level residuals—so we dedicate select product streams to tighter purification and batch traceability.
In agrochemicals and specialty coatings, the distinct double-bond chemistry enables a range of coupling reactions not easily achieved with other chlorinated butenes. Additive manufacturers, particularly in Asia and North America, have adopted our 1,3-Dichloro-2-Butene for its consistent reactivity and ability to produce long-chain derivatives with reliable yields. These are direct outcomes of rigorous production control, precision shipping, and a line-by-line approach to requests about compatibility, storage, or downstream waste handling.
The competitive landscape in chlorinated intermediates isn’t short on options. What sets a production manufacturer apart is commitment to grade integrity, transparency with customers, and openness in technical support. We maintain strict lot segregation, supply full analytical data with every batch, and keep stocks of backup samples drawn from each tank and drum fill. Many times, a problems spotted on the customer end trace back to shipment or storage variables outside their control. By holding enough retained samples and hand-carrying out-of-spec analyses when required, we help troubleshoot and close feedback loops faster than third-party sellers can arrange a call.
Our long-term partners appreciate the direct access to technical experience and plant personnel. More than once, we’ve supported scale-ups with on-site training for handling gas evolution, managed emergency shipments during raw material shortages, or adapted our output to fit specialized blending recipes. These aren’t visible on specification sheets, but they matter when failure would mean lost days or wasted product.
Regulation in the chemical industry can change overnight. Years of experience have reinforced one lesson: providers must adapt production and paperwork to local and international requirements without stalling reliable supply. Our product labs routinely update compliance and safety documentation, participate in audits, and work with real-world regulators when a new standard arises. This discipline has shielded customers in pharmaceuticals, coatings, and plastics from untimely shutdowns and delays associated with insufficient or outdated documentation.
Facing international transportation rules for hazardous chlorinated organics, we adjusted our packaging portfolio to conform with both domestic and overseas requirements. That includes revalidating drum liners, re-certifying transportation containers annually, and maintaining up-to-date safety training for all personnel involved with handling, filling, and transit. The ability to quickly pivot and supply extra data or alternative fill sizes keeps projects moving and customers confident that a change in law won’t spell lost production.
Every run brings unique challenges. In one recent case, a customer in the polymer modification field needed a custom stablizer blend with their 1,3-Dichloro-2-Butene supply to address heightened sensitivity during extended storage at elevated temperatures. We collaborated on bench trials, swapped lab data in real time, and adjusted our process to include a tailored additive package—all within days. That kind of speed isn’t possible without both in-house expertise and a close-knit production team ready to shift tracks swiftly.
Other times, customers encounter unfamiliar side reactions, product discoloration, or unexpected viscosity changes during scale-up. Our technical archive covers decades of learning, letting us pinpoint and resolve these issues using case studies. Having control over formulation and supply means solutions stay close at hand, not bogged down in layers of intermediaries.
Our history in chlorinated intermediates has shaped how we see responsibility. Workers in our plant know that every drum shipped with our mark carries a layer of trust, earned through unbroken attention to detail and willingness to take accountability if something falls short. From reactor operator to QA chemist to shipping clerk, each person realizes the stakes for both safety and economic stability in every batch of 1,3-Dichloro-2-Butene.
The product itself may be a colorless or pale yellow liquid in a barrel, but the story behind it—of process control, technical dialogue, rapid troubleshooting, and on-the-ground safety—is what our customers actually buy into. That is why we continue investing in training, equipment upgrades, and open lines of communication, both within our teams and with every customer, whether they order by the drum or the truckload.
As manufacturing technology moves forward, the bar continues to rise. We’re engaged in discussions about improved chlorination catalysts, higher yield distillation, and smarter environmental controls that cut even further into emissions and waste. Future directions might bring automated reaction platforms and predictive analytics to our operations, allowing us to tighten specs and offer even greater reliability with lower cost and higher safety standards.
None of this changes the fundamentals: meeting customer needs year after year, being honest about limitations and challenges, and carrying ownership for both our process and our product’s journey to each site. 1,3-Dichloro-2-Butene production demands vigilance, technical insight, and a strong partnership mindset—not just on our side, but down every link of the supply chain. We look forward to supporting each customer’s growth and adapting to every new requirement as industry standards move forward.
