Products

Methanesulfonyl Fluoride

    • Product Name: Methanesulfonyl Fluoride
    • Alias: MSF
    • Einecs: 212-892-7
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    995723

    Chemicalname Methanesulfonyl Fluoride
    Chemicalformula CH3SO2F
    Casnumber 558-25-8
    Appearance Colorless liquid
    Boilingpoint 69-70°C
    Meltingpoint -25°C
    Density 1.378 g/cm3
    Solubilityinwater Hydrolyzes in water
    Flashpoint 30°C (86°F)
    Refractiveindex 1.386
    Vaporpressure 120 mmHg at 20°C

    As an accredited Methanesulfonyl Fluoride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Methanesulfonyl Fluoride, 25g, supplied in a sealed amber glass bottle with a secure screw cap, labeled with hazard warnings.
    Shipping Methanesulfonyl Fluoride should be shipped in tightly sealed containers, clearly labeled, and stored in a cool, dry, and well-ventilated area away from incompatible materials. It is classified as a toxic and corrosive substance, requiring compliance with relevant transport regulations. Wear appropriate protective equipment during handling and shipping.
    Storage Methanesulfonyl fluoride should be stored in a cool, dry, well-ventilated area away from heat sources, moisture, and incompatible substances such as strong bases and oxidizers. Keep the container tightly closed and properly labeled. Store under inert atmosphere if possible, and use corrosion-resistant containers (e.g. glass). Always follow safety data sheet (SDS) guidelines for safe handling and storage.
    Application of Methanesulfonyl Fluoride

    Applications of Methanesulfonyl Fluoride in Industrial Manufacturing

    Methanesulfonyl Fluoride is a specialty fluorinated reagent recognized for its role in pharmaceutical and agrochemical synthesis. As a direct manufacturer, we supply this material to industries requiring strict process control and regulatory compliance. Below, we outline the most common and regulated downstream applications, each with specific technical, formulation, and process integration details.

    1. Pharmaceutical Active Pharmaceutical Ingredient (API) Intermediate Synthesis

    Pharmaceutical manufacturers rely on Methanesulfonyl Fluoride as a sulfonylating and fluorinating agent, particularly in the preparation of API intermediates for anti-inflammatory and anti-cancer drugs. The compound is selected for its specific N-fluorosulfonylation capability, allowing for targeted modification in heterocyclic and aromatic synthesis. Production lines apply it during late-stage functional group introduction, requiring rigorous traceability, batch documentation, and residue control to ensure all regulatory submissions satisfy international pharmacopeial standards.

    Industry compliance standards

    • ICH Q7 GMP for APIs
    • U.S. Pharmacopeia (USP) General Chapter 476
    • EMEA Guideline for Residual Solvents (ICH Q3C)
    • Certificate of Suitability (CEP, EDQM)

    Typical usage ratio

    • 0.6–2.5 molar equivalents per reactant, adjusted to substrate reactivity and impurity profile

    Downstream process integration

    • Charged in mid-to-late-stage sulfonylation and deoxyfluorination steps
    • Requires in-line analytical verification (HPLC/GC) for completion
    • Removal of residual fluoride in downstream purification
    • Final workup involves controlled quench protocols

    Final product types

    • Non-steroidal anti-inflammatory drugs (e.g., Celecoxib intermediates)
    • Aromatic sulfonamides with fluorinated side chains
    • Oncology candidate molecules with sulfonyl fluoride motifs
    • Enzyme-targeted bioactive intermediates

    2. Agrochemical Synthesis and Crop Protection Actives

    Formulators in the crop protection sector incorporate Methanesulfonyl Fluoride for selective sulfonylation during pesticide and herbicide intermediate production. Its high reactivity ensures step-efficient pathway conversion, minimizing byproduct formation and facilitating in-process yield optimization. Downstream teams must sanitize equipment and monitor trace fluoride residues, as dictated by global agrochemical regulatory frameworks and maximum residue limits for field deployment.

    Industry compliance standards

    • FAO/WHO Guidelines for Pesticide Specification
    • ISO 9001 Quality Management for Agrochemical Manufacturing
    • REACH Registration (EC 1907/2006)
    • OECD GLP for controlling environmental impact

    Typical usage ratio

    • Typically 1–3 molar equivalents in sulfonylation or fluorination reactions, set by target compound and field trial outcomes

    Downstream process integration

    • Integrated at precursor functionalization steps
    • Monitored by LC-MS during process scale-up
    • SOP-required neutralization and aqueous waste treatment
    • Packaging of intermediates in UN Class 6.1 compliant containers

    Final product types

    • Sulfonylurea herbicide intermediates
    • Insecticide actives with fluorinated sulfonyl groups
    • Fungicide scaffolds bearing SO2F substituents
    • Seed coating agents for regulated environments

    3. Biochemical and Enzyme Inactivation Reagents

    Biotechnology laboratories, both commercial and academic, use Methanesulfonyl Fluoride as an irreversible serine protease inhibitor in protein isolation and stabilization workflows. Processing teams apply it in buffer solutions, where precise dosing ensures rapid enzyme modification without compromising target analyte integrity. Downstream QC labs verify the absence of cross-reactivity and confirm the reagent's removal before formulation of diagnostic or therapeutic reagents.

    Industry compliance standards

    • ISO 13485 for medical device and reagent manufacturing
    • 21 CFR Part 820 (FDA Quality System Regulation)
    • Good Laboratory Practice (GLP, 21 CFR Part 58)
    • European Pharmacopoeia (Ph. Eur.) Section 2.4.24 for enzyme assays

    Typical usage ratio

    • Final buffer concentrations: 0.1–2 mM, determined by target enzyme abundance and required inhibition time

    Downstream process integration

    • Added to lysis buffers or protein extraction blends
    • Timed incubation followed by ultrafiltration
    • Spectrum-based QC verification for inhibitory completeness
    • Formulation into stabilized protein and enzyme preparations

    Final product types

    • Stabilized diagnostic reagents
    • Protein extraction kits for research and clinical laboratories
    • Therapeutic enzyme formulations after inhibitor removal
    • Biochemical assay panels for drug discovery

    4. Specialty Organic Synthesis for Laboratory and Custom Chemicals

    Custom synthesis laboratories and contract manufacturing organizations (CMOs) deploy Methanesulfonyl Fluoride for site-selective fluorosulfonylation and late-stage functional group introduction in complex molecule assembly. The material's reactivity profile favors use in milligram to kilogram-scale campaigns, where batch records must capture exact charge amounts and thermal profiles. Equipment maintenance teams implement specific protocols for cleaning fluoride residues to safeguard subsequent syntheses and comply with cross-contamination standards.

    Industry compliance standards

    • ISO 17025 Accreditation for analytical validation
    • GMP Annex 1 for sterile chemical preparation (where required)
    • Chemical Hygiene Plan (OSHA 29 CFR 1910.1450)
    • Custom project compliance as specified by downstream client

    Typical usage ratio

    • Ranges from 0.3 to 1.5 molar equivalents, fine-tuned per substrate and scale

    Downstream process integration

    • Juxtaposed in final synthetic steps to introduce SO2F groups
    • Monitored regularly via TLC, NMR, and HPLC analysis
    • Quench procedures tailored for waste minimization
    • QC hold for purity and structural confirmation before shipment

    Final product types

    • Custom organic intermediates for pharmaceutical R&D
    • Reference standards and labeled chemicals
    • Building blocks for medicinal chemistry CROs
    • High-purity specialty reagents for academia and biotech

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    Certification & Compliance
    More Introduction

    Methanesulfonyl Fluoride: An Insider’s Introduction from the Production Floor

    Understanding Methanesulfonyl Fluoride Through Experience

    Decades in the chemical manufacturing industry have taught us that knowledge rarely comes from textbooks alone. On the production floor, Methanesulfonyl Fluoride (MSF) stands out, not just by virtue of its chemical structure but for the role it plays across sectors demanding precision and reliability. Anyone working with organofluorine compounds gets to know the subtleties that set MSF apart from related reagents. Its popularity as a specific irreversible inhibitor for serine proteases isn’t a matter of trend—it’s a reputation forged through consistent results in research labs, pharmaceuticals, and specialty synthesis operations.

    MSF Model, Specifications, and the Manufacturing Approach

    Consistent quality begins with a clean source of methanesulfonyl chloride and highly controlled fluorination. We've spent years refining our routes to reduce byproducts and keep impurity profiles flat. With a focus on purity levels routinely above 99%, our production team doesn’t rush batches; close monitoring from the first fluorination to the final packaging step keeps color, moisture content, and acidity stable—key for ease of downstream handling. As far as physical appearance goes, MSF’s characteristic colorless liquid quality signals good processing hygiene. The formula—CH3SO2F—might seem straightforward, but its synthesis never feels routine; equipment selection, temperature control, and material compatibility all demand hands-on vigilance.

    Why End-Users Choose Methanesulfonyl Fluoride

    Working with research teams and pharmaceutical developers, we’ve seen firsthand why this reagent earns renewals year-on-year. In enzyme inhibition studies, for example, nothing matches MSF’s selectivity and reaction rate when it comes to targeting serine proteases. In practical synthesis, we hear about its value in preparing sulfonamides due to its ability to react cleanly without excessive side products. End-users ask for a reagent that holds up under real laboratory pressure—open bottles, lengthy manipulations, accuracy in dosing. MSF’s volatility carries some handling requirements, but professionals who know what they’re doing prefer it over bulkier or less predictable sulfonyl fluorides. Regular feedback confirms it delivers repeatable conversions, especially where competitors’ agents slump due to moisture or stray reactions.

    Differences that Define Methanesulfonyl Fluoride

    From inside the plant, we get an unfiltered view of what sets MSF apart. There are dozens of fluorinating agents, yet few offer the same reaction sharpness as MSF in biochemistry assays. Unlike bulk sulfonyl chlorides, MSF brings higher activity and a much neater conversion profile. The smaller, reactive fluoride group introduces less steric hindrance, allowing organic chemists to work with delicate substrates without risking over-fluorination or unwanted rearrangements. Some ask about switching to alternative sulfonyl fluorides; our technical team explains that each carries its own baggage of byproducts and handling quirks. In contrast, MSF’s purity—and the work we put in behind the scenes guarding that purity—results in less noise for assay data and more product in the bottle after prep runs.

    Manufacturing MSF: Know-How That Shapes Product Quality

    In our plant, safety and consistency run in tandem—nobody benefits from shortcuts. The MSF production process has demanded adaptation over the years as supply chains and regulatory standards shift. The fluorination step, in particular, challenges even experienced operators: overheating risks decomposition, poor venting causes losses, and all it takes is a transient spike in acidity to turn a high-purity batch into lower-grade output. These details don’t show up on a spec sheet, but they reshape the way quality assurance happens at each shift. On-site monitoring for hydrofluoric acid formation, regular instrument calibration, and worker training ensure every drop of MSF meets lab bench demands. Direct feedback from our customers—positive or negative—feeds right back into process adjustments, closing the loop between lab discovery and shop floor reality.

    How MSF Performs in the Field—A Manufacturer’s Perspective

    Shipping from our loading docks, we know that most MSF containers aren’t headed for long-term storage; they’re destined for live research. This context keeps our attention fixed on freshness and packaging integrity. Leak-proof fluoropolymer containers, tamper-evident seals, and lot tracking all factor into our logistics rhythm. Over time, we’ve noticed a shift in customer sophistication—they want more information about trace impurities, batch history, and handling recommendations, not just a purity percentage. In response, our technical documentation evolved to include trend data, photographs of representative batches, and storage guidance born out of practical lessons—like cold chain shipping during warm months for especially sensitive applications.

    Beyond the Laboratory—MSF’s Wider Role

    The reach of methanesulfonyl fluoride extends past life science circles. Industrial users tap into its reactivity in specialty polymerizations and as an intermediate for functionalizing surfaces. For each application, the end-value of MSF ties back to how closely we control upstream variables. Poorly managed humidity or batch-to-batch inconsistency won’t just show up as a reportable deviation—they cause tangible losses in high-throughput production. We see this especially where MSF serves as a finishing reagent: non-uniform color development or erratic final conversion can usually be traced back to a slip in early-stage processing. This is where a manufacturer’s stability pays off for the customer's bottom line.

    Practical Product Handling—Lessons Learned on the Factory Floor

    Handling methanesulfonyl fluoride, we’ve learned there’s no substitute for hands-on experience. Vapors can sting the eyes and nose, so proper fume extraction isn’t negotiable. Workers suit up with gloves and goggles, not just because safety standards demand it, but because losing focus during a transfer can mean a tough cleanup or worse. Stable ambient temperatures keep the product from venting too quickly; anyone who’s faced a swollen drum after a summer truck delivery knows how fast a job can go sideways. Inside our facility, spill kits stand within arm’s reach and supervisors run safety refreshers regularly. By sticking to these best practices, near-misses have dropped sharply, and output quality remains consistent.

    Supporting Consistency Through Every Sized Batch

    Lab managers often ask whether pilot-scale or tonnage batches stay equivalent. In our shop, we don’t cut corners just because an order runs smaller. Each scale brings its own challenges: pilot lines deal with more frequent cleaning and more batch-to-batch variability, while high-volume runs amplify any small error. Over the years, investing in modular reactors and flexible pump systems has proven worthwhile. Either way, our in-process testing calls for the same titration checks, impurity scans, and visual inspections at every scale. By leaning on these habits, we keep surprises at bay for our customers, whether they order a bottle or a drum.

    Comparisons and Contrasts With Similar Reagents

    Some customers explore alternatives like benzenesulfonyl fluoride or toluenesulfonyl fluoride. These have their own place, yet comparisons inevitably highlight MSF’s unique mix of volatility, functional group compatibility, and clean reactivity. Heavier aromatic sulfonyl fluorides present lower vapor pressure and can sometimes offer easier handling, but their slower reaction rates frustrate research teams aiming for rapid conversions or labeling. The smaller MSF molecule proves more nimble, especially in crowded biochemical environments. Aromatic counterparts occasionally introduce aromatic byproducts, complicating purification. MSF’s compact profile usually delivers cleaner isolation and minimizes side product headaches for chemists running sensitive sequences.

    Lessons from Customer Challenges—Building Better MSF

    Every production cycle ends with a review of customer feedback. Early years saw plenty of trial and error: a few poorly sealed packages led to loss claims; occasional haze pointed to incomplete drying. Instead of brushing off these reports, we overhauled our packing procedures and dryer protocols. Modern batches never leave the plant without triple inspection for clarity and tightness. That’s not just protecting our brand—it guards our customers’ time and trust. Our research partners share updates about breakthroughs possible only with reliable MSF quality. A project for rapid serine protease labeling required milligram-accuracy reactivity; our attention to trace moisture content and guarantee of sub-ppm impurity probably saved several experiments from drifting off course or needing repeat runs.

    Storage and Shelf Life—Grounded in Practice

    Methanesulfonyl fluoride, by nature, keeps better under anhydrous conditions. Despite modern packaging, storage still affects shelf life. Over the years, we’ve seen that labs that refrigerate MSF outside of high-traffic areas keep their product in spec longer. Direct sunlight and temperature extremes kick off slow hydrolysis—not catastrophic, but enough to lower reaction rates for users banking on full potency. Our technical team suggests rotating stock and ordering only what’s needed for a quarter’s work to keep product fresh. While this advice seems simple, we find even experienced technicians gain from reminders drawn from batches gone stale on the shelf or turned cloudy during mid-summer shipments.

    Nitpicking Details—Why Every Step Counts

    There’s an old saying in chemical manufacturing: quality lost early can’t be gained back later. From years of MSF production, we know that exact dosing of fluorinating agent avoids runaways, and constant agitation keeps local concentrations steady. Clearing final traces of hydrogen chloride means less corrosion for everyone downstream. These aren’t marketing lines—they’re the result of troubleshooting failed runs and pitting on reactor jackets that drove months of repairs. The habit of double-checking routine steps, whether it’s glassware cleanliness or argon headspace flushes, always comes from experience dealing with invisible variables that hit yield and purity. Through steady refinement of these habits, we’ve built up dependable MSF supply for research and industry alike.

    Building Trust Through Transparent Practice

    Transparency sits at the core of how we run our operation. Instead of hiding behind simple specs, we share historical data, trends in impurity levels, and real images of current batches with customers. It’s not about advertising—it’s about building trust through openness. Regular technical bulletins and user feedback loops help us catch minor shifts before they become problems. Offering this level of detail supports those working at the frontier of research, where every variable matters. We know MSF isn’t the only option out there, but professionals return to us because they can trace every bottle to a real process and a real team willing to talk through technical details without spin.

    The Regulatory View—Meeting Standards without Shortcutting

    Compliance and quality aren’t just boxes for us to tick—they frame every step, from sourcing to shipment. MSF requires accuracy in documentation and traceability; this helps our customers meet their own regulatory pressures, especially in pharmaceutical settings. We maintain thorough batch histories and integrity checks to support audits. Observing local and global guidelines for transport, waste, and hazardous substance reporting provides a platform for long-term supply relationships. Downtime for a compliance issue can jeopardize a critical study or timeline, so we pour time into keeping our quality systems both robust and agile.

    The Future of Methanesulfonyl Fluoride in a Shifting Chemical Landscape

    Markets change and new reagents emerge, but certain fundamentals hold steady. MSF’s selectivity and clean reaction outcomes continue to back critical research from medicinal chemistry to advanced product development. Environmental concerns push us to optimize for less waste, greener energy sourcing, and innovative recovery systems in our plant. As customer bases globalize and applications diversify, questions get tougher: can we provide the same quality everywhere, under unpredictable supply chain conditions? Real-world test runs, cross-continental shipping simulations, and concrete documentation form the backbone of our continuous improvements. This ongoing process keeps our MSF not only competitive but truly dependable for those running essential experiments or producing specialty compounds where margin for error runs thin.

    Direct Lines of Communication—Why Listening Shapes Better MSF

    Our pride in MSF production comes from a two-way street with users. Regular visits to customer sites and open channels for technical consultation mean we see and hear about shifts in research focus and process needs early on. This immediate feedback shapes our approach to fine-tuning purification, adjusting packaging formats, or rethinking formulations to address niche applications. The goal hasn’t changed since our earliest days: understand the real requirements behind every order, build products that support those needs, and never stop improving both product and workflow. For every scientist or engineer counting on MSF for tomorrow’s critical reaction, our process backs them up—one batch at a time.

    Conclusion of Perspective—Why MSF Remains a Backbone in Modern Chemistry

    Experience shapes our understanding of where methanesulfonyl fluoride fits and why quality and transparency matter. Demanding users drive us to keep standards sharp; real feedback steers process changes more than any abstract guideline. Our hands-on commitment shows in the steadiness of supply and the traceability that offers peace of mind for users in cutting-edge research or critical manufacturing. Methanesulfonyl fluoride may be a single entry in a broad catalog, but it stands out because product quality stems not just from process specs, but from years of accumulated know-how and a refusal to compromise on what matters most to those depending on it every day.

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