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HS Code |
890384 |
| Chemical Name | 2-Chloroethyl Methyl Sulfide |
| Cas Number | 107-44-8 |
| Molecular Formula | C3H7ClS |
| Molecular Weight | 110.61 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 143-144°C |
| Melting Point | -70°C |
| Density | 1.143 g/cm3 |
| Solubility In Water | Slightly soluble |
| Flash Point | 43°C |
| Vapor Pressure | 3 mmHg at 25°C |
| Odor | Garlic-like |
As an accredited 2-Chloroethyl Methyl Sulfide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 250 mL amber glass bottle with screw cap, labeled "2-Chloroethyl Methyl Sulfide," hazardous material warnings, and proper UN identification. |
| Shipping | 2-Chloroethyl Methyl Sulfide must be shipped as a hazardous chemical according to international and national regulations. It requires tightly sealed containers, proper labeling (flammable, toxic), and secondary containment. Use temperature-controlled packaging if necessary. Shipping documentation must specify UN number 2810 (Toxic Liquid, Organic, N.O.S.), with emergency contact information provided. |
| Storage | 2-Chloroethyl Methyl Sulfide should be stored in tightly sealed containers, in a cool, dry, and well-ventilated area away from heat, sparks, and open flames. Keep away from incompatible substances like strong oxidizers and acids. Store it in a chemical fume hood or designated corrosive storage cabinet, with appropriate labeling and secondary containment to prevent leaks or spills. |
Applications of 2-Chloroethyl Methyl Sulfide in Industrial ManufacturingAs a chemical raw material manufacturer with advanced production capabilities, we supply 2-Chloroethyl Methyl Sulfide (CEMS) to major industrial sectors that demand strict process control and regulatory compliance. Below we present precise usage scenarios where CEMS is a critical input, highlighting relevant industry requirements, typical ratios, process stages, and finished goods. 1. Agrochemical Synthesis – Intermediate for Select HerbicidesCEMS serves as a key alkylating intermediate in the production of chloroalkyl-containing herbicides. Its reactivity streamlines carbon-sulfur bond formation in targeted synthesis routes. During formulation, downstream chemical manufacturers monitor reaction parameters to maximize yield and minimize by-product formation, strictly managing residual levels in line with agricultural chemical regulations. Incorporation of CEMS occurs in sealed reactor systems with subsequent purification stages prior to blending into technical-grade active herbicide ingredients. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
2. Pharmaceutical Intermediate – API Synthesis for Controlled SubstancesCEMS is utilized by pharmaceutical manufacturers as a sulfur alkylation agent, particularly in the construction of complex intermediates for API synthesis. Careful process validation ensures all residual CEMS falls below pharmacopoeia thresholds. Dedicated GMP lines prevent cross-contamination, and quality labs perform batch-release verification as required for registration dossiers. Its introduction into the process occurs early in the multi-step synthesis followed by exhaustive purification. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Specialty Rubber Additive ManufacturingIn the rubber compounding industry, CEMS acts as a selective curing agent and crosslinking intermediate for manufacturing thioether-functionalized elastomers. Compounders introduce it to modify mechanical and chemical resistance properties of polysulfide rubbers, applying process controls to prevent over-curing and maintain physical parameters for targeted end use. Additive levels depend on crosslink density, and dosing occurs during the mastication and pre-vulcanization stages within closed mixers. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Chemical Defense Research and Reference Material SupplyState-authorized labs and defense contractors utilize CEMS under tightly controlled and regulated environments for synthesis and calibration of detection equipment, training simulants, and test standards. All handling, transfer, and neutralization protocols follow national safety and export regulations. In this scenario, production and distribution work strictly within facility clearance and material traceability guidelines, with use restricted to R&D, reference standard formulation, or sensor calibration purposes. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
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2-Chloroethyl methyl sulfide stands out in the regular portfolio of organosulfur compounds produced at our facility. Its chemical structure, marked by a single chlorine substitution and a methyl side chain, bridges the gap between cost-effective versatility and niche reactivity. Instead of selling a one-size-fits-all answer, we manufacture this molecule to deliver consistent purity while keeping production capacity nimble enough to adapt to fluctuating market requirements. Customers who come to us—ranging from agrochemical formulation teams to research arms at specialty material developers—benefit from direct access to our R&D and quality control teams, ensuring specifications line up with real-world process demands. We know that comparing 2-chloroethyl methyl sulfide to simpler alkyl chlorides or more heavily substituted thioethers illustrates why this chemical finds favor where others fall short.
We deliver 2-chloroethyl methyl sulfide (C3H7SCl) in several purity grades, with a primary focus on consistent chemical profile—chloride content, thioether stability, and impurity thresholds that reflect years of experience in refining the synthesis. Standard delivery forms include clear to pale yellow liquid packed under nitrogen in steel drums or fluoropolymer-lined containers. Moisture control is vital; even small water ingress can trigger unwanted hydrolysis, leading to detectable side product formation and off-odors. Our plant storage and filling areas handle these details on a batch-to-batch basis, ensuring customers can proceed without second-guessing the consistency of their inputs. We maintain strict cutoffs for volatile organics and hydrogen sulfide content, learned from years of customer feedback in both laboratory-scale work and full-scale process lines.
Most buyers make use of 2-chloroethyl methyl sulfide in intermediate synthesis rather than end-use products. Its reactivity owes much to the combination of a labile chlorine and a thioether group, guiding it into niche transformations. In our experience, this compound serves as a starter for building more complex sulfur-containing molecules, especially when selective alkylation is needed and harsher chlorinated reagents prove too aggressive or produce too many byproducts. One major field is agrochemical synthesis, where analogous structures inspired by nature often require careful construction of thioethers or sulfide bridges. Because our material avoids over-chlorination and unwanted side reactions typical of less tightly controlled sources, downstream yield improvements are regularly reported by long-term users.
Research teams frequently request this specific molecule for exploration into novel polymers and specialty coatings. The balance of reactivity and moderate volatility often makes it valuable in controlled release studies or modification of resins where introduction of a sulfur atom brings wanted changes in flexibility and surface behavior. By working directly with manufacturers like us, customers avoid the delays and miscommunication that come from trading-house intermediaries who may lack the firsthand knowledge crucial when process upsets occur on the shop floor.
Typical alternatives to 2-chloroethyl methyl sulfide include monochloroalkanes, dichloroethane, or multi-chlorinated sulfides, each with their own handling quirks and reactivity patterns. Our customers regularly reference process notes showing that switching to our compound often brings improvements in selectivity—a crucial metric when narrowing the formation of unwanted side products can help meet stricter government guidelines in finished products. The moderate nucleophilicity of the sulfur provides a “sweet spot” in radiosynthesis, thiol protection, or cross-linking steps that might otherwise force process engineers to juggle multiple process variables just to reach the same endpoint.
Simple methyl chlorides lack the reactivity window provided by the sulfur—leaving customers with lower conversion or requiring additional reagent steps. More heavily substituted thioethers, on the other hand, often introduce unnecessary bulk and expense, raising raw material costs without improving the reliability of downstream transformations. Experience has demonstrated that, by controlling the chain length and balance of substitution, our 2-chloroethyl methyl sulfide simplifies downstream distillation and post-synthetic workup, reducing labor hours and solvent requirements.
Plant reliability grows out of day-after-day scrutiny—tracking temperatures, pressure controls, and reaction times fine-tuned after years of listening to the operators who live with every batch. 2-Chloroethyl methyl sulfide requires specific temperature-window management; too hot and decomposition rises, too cool and yields fall off as reactions stall. Our teams watch for subtle color shifts and minor gas evolution, taking samples at critical points to spot runaway reactions. These insights make us confident discussing process improvements with customers trying to scale up or tweak their own recipes. We don’t take shortcuts: regular maintenance and equipment upgrades, like specialized glass-lined reactors and corrosion-resistant transfer lines, keep customer supply both predictable and free from contamination issues encountered by less rigorous operations.
No one working daily with organosulfur chemicals ignores the unique handling needs of 2-chloroethyl methyl sulfide. From transfer to storage, our facility prioritizes leak prevention and gas scrubbing, based not just on paper regulations but on firsthand experience mitigating unexpected releases. Direct inhalation risk and stringent local emission limits have driven us to invest in multi-stage air filtration and continuous monitoring. Workers train to recognize distinct odors and handle PPE beyond the minimum required, based on real-life incidents and not abstract risk tables. Our waste treatment plans work from the assumption that even sub-ppm traces in spent solvents deserve attention—years in this business have taught us that today’s trace contaminant is tomorrow’s regulatory headache.
Sourcing from our own dedicated units means every lot comes with traceable data, including logs of atmospheric sampling and review of tank integrity. Many first-time customers cite safety and audit records as reasons for choosing direct manufacturers—verification counts for more than glossy certifications. Further, we actively communicate with downstream processors about changes in environmental rules, especially where local water and soil regulations risk upending business as usual. Flexibility in packaging and ready-to-support batch-specific documentation have proven critical during compliance audits for large-scale customers.
Compared to distributors or warehouse operations, a true manufacturer’s value shows during piloting and process troubleshooting. We often work hands-on with chemists refining multi-step syntheses, advising on reaction staging, vent control, and post-reaction cleanup. This collaboration saves teams outside our plant a learning curve and reduces raw material waste—critical in projects with tight funding or compressed delivery timelines. Our familiarity with batch scale-up means we can provide advice about agitation, mass transfer, and solvent compatibility, learned by seeing batches run at multiple scales rather than just reading about them in a lab manual. These insights help new users avoid pitfalls that online guides or data sheets overlook.
Production ramp-up sometimes reveals issues that no paper specification can capture, such as subtle oxidation of product on transfer lines, or unexpected color shifts during drum storage tough to predict from lab samples alone. By offering flexible shipment sizing and providing direct feedback on customer use, we shorten the feedback loop, helping process engineers reach a stable operation quicker. Our technical crews are available to discuss challenges under real-world plant constraints—limited downtime, fluctuating ambient conditions, and shifting raw material prices all influence which advice actually works.
Manufacturing isn’t static—neither are the regulatory or practical expectations of buyers. We keep our process development lab closely linked with the plant floor, regularly reviewing customer outcomes and internal yield figures to spot sagging efficiency or waste problems before they hit the bottom line. Regular third-party audits support our in-house analytics, with findings disseminated to technical leadership and, when useful, to end-users. Our priority remains building confidence rooted in clear, consistent product results, not just chasing new certifications or market buzzwords.
Feedback loops run both ways—our teams track unplanned downtime and product rework, reporting not just what went wrong but how the process changed afterward. The goal isn’t merely reducing complaint counts; it’s to evolve specifications so that today’s outlier batch becomes tomorrow’s tightest standard. By openly sharing lessons learned from cross-plant benchmarking and customer pilot results, we build deeper partnerships with buyers ready to view supply as a shared process, not just a purchase order. This approach especially benefits buyers who value hands-on technical support over generic claims.
Direct manufacturing links us to the broader global market for thioether and chloroalkyl intermediates. Our buyers often voice concerns about disruptive supply trends, from fluctuations in raw sulfur pricing to transportation headaches tied to import restrictions. Staying close to the production floor puts us in a better position to respond—switching supply partners, adjusting production schedules, or offering alternative contract terms ahead of forecasted turbulence. Experience preparing buffer stock and handling last-minute air shipments has proved critical to supporting both established and emerging customers.
Many end-users place a premium on response speed and production traceability, especially those serving regulated markets like agrochemicals or specialty coatings. Our documentation, compiled by the team most familiar with the daily chemistry, aligns with audit requirements that matter—not just shelf documentation for marketing purposes. Consistent lot release profiles, direct access to certificate-of-analysis data, and transparent discussion about production origins increase end-user trust, especially when unexpected technical hurdles arise.
2-Chloroethyl methyl sulfide doesn’t cover every need—sometimes a straight-chain chlorinated hydrocarbon or a different alkyl sulfide proves better for a given end-use. Still, the balance of reactivity and handleability means it frequently replaces more hazardous or less predictable alternatives, especially in facilities looking to avoid excessive solvent use or complex purification. We have watched customers run side-by-side trials, noting lower off-gassing and cleaner downstream phases when using our compound. The thioether backbone moderates the harshness associated with many simple alkyl chlorides, reducing equipment corrosion and product loss during volatile operations.
Heavily substituted analogs often drive up both price and process complexity without significant gains in yield for typical transformations. Simpler methyl or ethyl chlorides lack the fine-tuned balance of volatility and reaction selectivity, leading to additional purification steps and wasted chemical. Through extensive benchmarking, our teams document higher isolation yields and more reliable product profiles for clients switching over, especially those dealing with multi-step reaction sequences.
Emerging research continues to uncover new ways to apply 2-chloroethyl methyl sulfide beyond its historic role as an intermediate. Customers experimenting with biodegradable plastics and novel elastomers have found that carefully controlled sulfur introduction, via compounds like ours, enhances material durability without excessive toxicity or post-processing headaches. These direct relationships allow us to gather firsthand data about process bottlenecks, surface energy shifts, or unique handling needs specific to each experimental system. By working with manufacturers rather than middlemen, research collaborations run smoother, intellectual property stays protected, and feedback reaches the chemists and engineers who can make manufacturing adjustments in real time.
Standardized pilot support, available in-house rather than via outsourced labs, gives customers freedom to test new procedures without waiting weeks for approval. Process documentation, lot-specific impurity tracking, and access to line engineers shortens development cycles and increases the odds of first-pass success. This cycle of iterative feedback and support ultimately reflects in stronger products and more reliable supply chains for innovative materials and finished chemicals.
Every batch of 2-chloroethyl methyl sulfide bears the mark of hands-on expertise, rigorous attention to operational details, and transparency built from direct factory-to-customer contacts. Our site teams stay familiar with the evolving literature and regulatory environment and incorporate these learning into continuous upgrades. Process changes come from measured trials and regular review, not from knee-jerk responses to industry buzz. Supply reliability, technical clarity, and shared problem-solving guide each aspect of our business, contributing lasting value well beyond product delivery.
The close ties between our technical, operations, and customer support teams mean the learning from plant incidents, supply challenges, or customer trials never stays siloed. Everything feeds into practical improvements—whether in line safety, quality control, or documentation standards. Our goal remains woven into every stage, turning raw chemical expertise into products that work, underpinned by the direct experience only a manufacturer can provide.
2-Chloroethyl methyl sulfide delivers a mix of reactivity and reliability that sets it apart from both simpler and more complex alternatives. End-users in agrochemicals, materials development, and specialty synthesis benefit most from consistency and first-hand support. By choosing direct manufacture over trading, buyers gain product transparency, traceable quality, and insight from a team that crafts every batch with care and keeps pace with industry advances. Every barrel we send out reflects hundreds of interlocking steps across synthesis, handling, and support, grounded in hard-won experience and genuine commitment to partner success.