| HS Code | 135629 |
| Iupac Name | (R)-2-(Chloromethyl)oxirane |
| Other Names | R-Epichlorohydrin |
| Cas Number | 67843-74-7 |
| Molecular Formula | C3H5ClO |
| Molar Mass | 92.53 g/mol |
| Appearance | Colorless liquid |
| Boiling Point | 117°C |
| Density | 1.180 g/cm³ at 20°C |
| Optical Rotation | [α]D20 –35° (neat) |
| Solubility In Water | Moderately soluble |
| Chirality | R-(-)-enantiomer |
| Smiles | C1C(O1)CCl |
| Pubchem Cid | 22161801 |
As an accredited (R-(-)-2-(Chloromethyl)oxirane factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The 100g bottle of (R-(-)-2-(Chloromethyl)oxirane is sealed in amber glass, featuring hazard labels and tamper-evident closure. |
| Shipping | (R)-(-)-2-(Chloromethyl)oxirane is shipped in tightly sealed, chemical-resistant containers under controlled temperature conditions to prevent degradation. Packaging complies with regulations for hazardous materials, including proper labeling and documentation. Transport is handled by certified carriers specializing in chemicals, ensuring safety and adherence to both domestic and international shipping standards. |
| Storage | (R)-(-)-2-(Chloromethyl)oxirane should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from sources of ignition, moisture, and incompatible substances such as strong oxidizers, acids, and bases. It should be protected from light and stored at a temperature recommended by the manufacturer, generally in a refrigerator (2–8°C), to maintain stability and avoid decomposition. |
As a direct manufacturer of (R-(-)-2-(Chloromethyl)oxirane, we have extensive technical experience supporting its use as a critical chiral building block and alkylating agent in select industrial sectors. Below, we detail the precise application scenarios based on real downstream integration, specifying compliant standards, practical formula advice, specific process entry-points, and end-use product types in each field.
Pharmaceutical manufacturers incorporate this material in the asymmetric synthesis of chiral intermediates for β-blocker and antiviral API production. The distinct epoxide structure provides an essential reactant for enantioselective alkylation, influencing the final bioactivity profile of the molecules. Handling and process control must address both chemical selectivity and trace impurities, as required by leading regulatory frameworks.
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Formulators in the agrochemical industry rely on the compound in multi-step pathways to introduce chiral epoxide or chloromethyl fragments into crop protection agents. Synthesis routes incorporating this intermediate must navigate regulatory priority around impurity profiles, agrotoxicity, and isomeric purity, ensuring compliance through analytical verification at every phase.
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Electronics manufacturers incorporate this chiral epoxide as a modifier in high-performance epoxy formulations, where it introduces specific enantiomeric configurations for achieving tailored dielectric and mechanical properties in microelectronic encapsulants and adhesives. The process requires precise monitoring of both batch homogeneity and trace residuals to meet advanced industry reliability standards.
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Specialty catalyst manufacturers utilize this compound as a raw material to synthesize optically pure chiral ligands and auxiliaries. These ligands are later applied in large-scale asymmetric hydrogenation or oxidation processes. Meeting customer and regulatory expectations hinges on correctly documenting impurity profiles and batch traceability, given the direct impact on catalyst selectivity.
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R&D and specialty chemical labs order this compound for custom synthesis of enantiopure amino alcohols and related building blocks, targeting high-value polymer and liquid crystal materials. The process involves multi-step transformations; traceability and purity documentation support development-phase regulatory filings and intellectual property claims.
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Competitive (R-(-)-2-(Chloromethyl)oxirane prices that fit your budget—flexible terms and customized quotes for every order.
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As a chemical manufacturer who works at the frontline of advanced organic synthesis, every day brings new challenges and opportunities. R-(-)-2-(Chloromethyl)oxirane stands out in our production line due to its unique stereochemistry and reactivity. This molecule’s chiral epoxide structure makes it especially attractive for researchers and manufacturers seeking specific enantiomeric outcomes in synthesis, particularly for pharmaceutical and fine chemical applications. The product, offered in high optical purity, signals a dedication not just to quality but to supporting complex, stereoselective transformations.
Our team knows the difference between generic intermediates and true specialty building blocks. Unlike racemic or S-enantiomer options, R-(-)-2-(Chloromethyl)oxirane consistently delivers a valuable edge for scientists designing asymmetric catalysis pathways or looking to efficiently introduce a chiral center into their target molecules. Various industries, from agrochemicals to pharmaceuticals, depend on these details for downstream efficacy and regulatory approvals.
Specifications define a product’s fit for purpose, but real confidence comes from the process and experience behind it. R-(-)-2-(Chloromethyl)oxirane, usually delivered as a clear to slightly yellow liquid, registers sharp chemical purity—often above 98% by GC and regularly verified by chiral HPLC, which is handled in our own quality control suite rather than subcontracted. We take steps to minimize water and residual solvents, not only to please paper standards, but to make sure our customers sidestep problems in subsequent reactions. Specifications also cover color, refractive index, and density, but what sets this product apart is the controlled enantiomeric excess that’s tough to match with standard methods alone.
Chiral purity isn’t just a number in a report—it shapes outcomes all the way to finished APIs and fine chemicals. Our team invests in process checks beyond what’s typically required, calibrating every batch against reference standards and historical trends. Years of refining our synthetic route and packing methods mean fewer customer complaints and less troubleshooting for you as a formulator or scale-up chemist.
Every batch tells a story from raw material selection to final shipment. The throughput of R-(-)-2-(Chloromethyl)oxirane ties closely to its role as a cornerstone intermediate. The molecule earns its keep in epoxide ring-opening reactions, asymmetric alkylations, and as a precursor for the synthesis of chiral amines or alcohols. Many of our regular customers use it for the preparation of β-amino alcohols, which are key units in active pharmaceutical ingredients. Others leverage the chloromethyl group’s reactivity for subsequent functionalization, taking advantage of the molecule’s kind balance between stability and reactivity.
Users value reliability. Catalysts, reagents, and even the ambient humidity can affect outcomes, but a well-made R-(-)-2-(Chloromethyl)oxirane removes at least one variable from the equation. Customers often share feedback that our in-house synthesis leads to purer intermediates in their own processes, translating to fewer purification steps downstream. As a manufacturer, we appreciate these success stories because they validate the extra hours spent on process optimization and facility upgrades.
In the lab and at scale, storage and safe handling grow in importance. As a reactive epoxide, R-(-)-2-(Chloromethyl)oxirane must be stored cool and dry, away from acid and strong base exposure. The packing formats we use—typically sealed under inert gas in amber glass or PTFE-lined steel containers—reduce the risk of degradation or exothermic reactions. These choices emerged from years of direct experience with epoxide chemistry, and from learning the hard way that ignoring best practices always costs more in the end.
The specialty nature of R-(-)-2-(Chloromethyl)oxirane often attracts comparisons to cheaper or more generic epoxides. Looking strictly at catalog price misses the craft and science behind reproducible stereochemistry and impurity control. Our operation avoids shortcuts that might compromise the optical or chemical purity, even if this approach delays a batch release or raises feedback internally. Trust grows batch by batch, shipment by shipment.
Industry partners rely on us not only for the compound itself but for up-to-date technical support. Some applications demand slight modifications to ensure compatibility with custom processes. Over the years, we’ve tailored drying times, adjusted glassware rinsing protocols, and periodically switched solvents to match partner requirements—all tasks grounded in live feedback from busy chemists, not a “one size fits all” mentality. Feedback loops are personal; many of our improvements come from late-night calls and lab visits.
Compared with S-enantiomers or racemic mixtures, the R-(-) form displays notably different reactivity and biological effects. API developers know that regulatory bodies scrutinize both enantiomer presence and levels in final drug substances. Our clients, especially those filing drug master files, routinely reference our certificates of analysis and batch traceability information in their submissions. Documented practices and transparent traceable records provide the backbone for our market reputation.
Scaling a specialty compound without sacrificing quality is never easy. Variability in feedstocks, subtle temperature shifts, or equipment wear can show up in optical rotation or trace impurity levels. Over the years, we’ve learned that closed feedback systems and experienced staff catch more potential issues than even the best automated controls. Our team hates surprises, so extra sampling points and rigid tank cleaning routines have become non-negotiable.
Many customers request documentation on residual solvents, trace metals, and bioburden, especially for advanced pharmaceutical applications. We publish extended test data with each lot and respond quickly to clients’ questions on analytical methodology. Independent audits and regulatory inspections are not viewed as chores but as opportunities to demonstrate the minimal gaps between “target” and “actual” product attributes. Data never gets dry cleaned or smoothed—hard numbers tell the most honest story.
Consistent purity and the right optical isomer support not just the immediate synthesis but the broader goals of our partners—less waste, reduced regulatory risk, and easier scale-up. We’ve learned that repeat orders don’t result from the lowest price; they come from customers who feel confident planning their next kilo run because the last consignment of R-(-)-2-(Chloromethyl)oxirane worked as promised.
Our manufacturing journey with R-(-)-2-(Chloromethyl)oxirane tracks the wider drive for enantioselectivity in drug and material design. New breakthroughs in asymmetric catalysis, green chemistry, and chiral resolution depend on building blocks like this, where small structural differences lead to large functional impacts. Demand for left-handed or right-handed compounds isn’t just an academic issue—major clinical outcomes depend on the right isomer reaching the right receptor in the body.
We routinely support teams developing new synthetic routes or bioactive molecules. Conversations with research chemists, process engineers, and QA specialists feed directly into process tweaks and occasional major overhauls. Every year brings new regulatory emphasis—residual impurity limits, expanded genotoxicity reviews, detailed chain of custody records. Our site adapts, not just to tick boxes but to maintain the trust our users place in each bottle we ship.
The world knows R-(-)-2-(Chloromethyl)oxirane mostly as a stepping-stone; for us, it represents years of hard work, troubleshooting, and teamwork. The manufacturing side rarely gets a spotlight, yet customers value real stories behind the chemicals they receive. One recent example: an API partner faced repeated batch failures with another supplier until switching to our material. Using our R-(-)-2-(Chloromethyl)oxirane, their in-process yields edged up several points, downstream color stability improved, and the need for reprocessing dropped by over a third. Our technical manager travelled to oversee the first run with our product, cementing a partnership through trust and visible outcomes.
Increasingly, our role extends beyond supplying a drum or bottle. Teams come to us for detailed supply chain insight, risk mitigation planning, and backup manufacturing routes. Disruptions from raw material shortages or regulatory changes never stay abstract on our side; they translate into action and contingency plans. Over time, we’ve diversified supplier bases and verified every changeover in person, not just trusting a paperwork trail from upstream partners.
Continuous improvement shows up not only in smoother production but in logistics and delivery. We work with transit specialists to limit temperature excursions, sweating details such as container headspace and seal integrity. We know from experience that just a few hours outside the safe range can damage sensitive material, so we invest in real-time monitoring and swift dispatch.
Our end-users benefit directly from these efforts. Fewer urgent troubleshooting calls, tighter batch-to-batch specs, and peace of mind when planning long-term development or commercial programs. Relationships rarely grow out of transactional exchanges; they grow through small daily improvements and honest handling of setbacks when they happen.
Pharmaceutical, agrochemical, and specialty chemical users face mounting regulatory scrutiny, and so do we as manufacturers. Customer audits, regulatory inspections, and certifications form a regular part of our business rhythm. We maintain meticulous batch records, calibration logs, and full traceability from incoming raw materials to shipped finished product. Our team approaches these tasks not as paperwork exercises but as opportunities to highlight the control and care built into our systems.
Every specification, analytical method, and certificate is transparent and open for audit. We provide not just a generic certificate of analysis but access to the underlying chromatograms, when needed, and walk partners through each signature peak or outlier. Over the years, this openness has turned skepticism into recurring orders, especially when new users want assurance that claims align with real process capability.
As standards tighten globally, especially around chiral purity and impurity thresholds, we refine both core analytical methods and process controls. This often means adding extra in-line checks or updating our documentation suite, sometimes mid-batch, to fit evolving partner standards. A focus on transparency not only builds trust but forces us to keep our own operations sharp and up-to-date.
Every manufacturer faces pressure to deliver more sustainable solutions without compromising product quality or customer timelines. Stereochemically pure intermediates present unique challenges: longer syntheses, greater use of specialty reagents, and the need for advanced purification. Our site has deployed several green chemistry initiatives, like solvent recycling and waste stream segregation, to keep our environmental footprint in check while keeping the focus on yield and purity.
We experiment with new catalysts and chiral auxiliaries, always on the hunt for methods that shorten syntheses or reduce hazardous byproducts. The adoption of process intensification and improved monitoring has reduced annual solvent waste and improved yield consistency, while our hazard management efforts have cut near-miss incidents by half in recent years. For us, sustainability grows from practical changes and day-to-day vigilance rather than promotional slogans.
Customer-driven projects often steer the direction of our R-(-)-2-(Chloromethyl)oxirane program. Sometimes, a partner develops an alternative synthetic route that reduces reliance on restricted substances, prompting us to trial new feedstock sources or reaction conditions. Our willingness to prototype small-scale batches for these R&D efforts pays off by building deeper relationships and keeping our own knowledge base current.
The journey from raw starting material to enantiomerically pure oxirane goes far beyond reactors and chromatographs. Each improvement in handling, each tweak in analytical approach, and every night shift call carries lessons that shape our current offering of R-(-)-2-(Chloromethyl)oxirane. Clients tell us what works and what does not, and we listen—forging a feedback loop that keeps us grounded in customer needs and responsive to market changes.
Through years of steady improvement, we’ve found that open communication, process discipline, and steady investment in people and equipment make all the difference. Our plant staff takes pride in spotting trends before customers do, and that vigilance pays off when audits go smoothly and specs hold true from the first flask to the final shipment.
On the surface, R-(-)-2-(Chloromethyl)oxirane might seem like just another chiral intermediate. Below that surface runs a powerful story of dedication, technical excellence, and trust that defines advanced manufacturing today. Our partners gain more than a chemical—they tap into a network of experience, learning, and genuine commitment to their success at every step of the scale-up and beyond.