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Bis(Methylthio)Methane

    • Product Name Bis(Methylthio)Methane
    • Alias 2,2'-Thiodimethanethiol
    • Einecs 221-625-7
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    397800

    Chemical Name Bis(Methylthio)Methane
    Cas Number 1618-26-4
    Molecular Formula C3H8S2
    Molecular Weight 108.22
    Appearance Colorless to pale yellow liquid
    Boiling Point Celsius 176-177
    Melting Point Celsius -73
    Density G Per Cm3 1.06
    Refractive Index N20 1.538
    Flash Point Celsius 63
    Solubility In Water Insoluble
    Odor Unpleasant, thioether-like
    Pubchem Cid 11925

    As an accredited Bis(Methylthio)Methane factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Bis(Methylthio)Methane, 100g: Supplied in a tightly sealed amber glass bottle with hazard labeling and tamper-evident cap for safety.
    Shipping Bis(Methylthio)Methane is shipped in tightly sealed containers, protected from heat, moisture, and incompatible substances. It is transported as a hazardous chemical, with packaging meeting regulatory standards to prevent leaks or spills. Proper labeling and documentation ensure safe handling during transit according to international shipping regulations for chemicals.
    Storage Bis(Methylthio)Methane should be stored in a cool, dry, well-ventilated area away from sources of ignition and incompatible substances such as oxidizing agents. Keep the container tightly closed and properly labeled. Avoid exposure to heat, moisture, or direct sunlight. Use chemical-resistant containers and ensure proper grounding when transferring to prevent static discharge. Store in accordance with relevant chemical safety regulations.
    Application of Bis(Methylthio)Methane

    Applications of Bis(Methylthio)Methane in Industrial Manufacturing

    As an established manufacturer of Bis(Methylthio)Methane, we supply high-purity batches for downstream sectors with strict technical requirements. Drawing on our expertise in large-scale synthesis and quality control, we support specific applications where our material fulfills defined process or performance roles. The following application scenarios present the real fields where Bis(Methylthio)Methane has solidified its position in industrial operations, with each use case reflecting sector-specific compliance, dosage, process route, and end product types.

    1. Vulcanization Accelerator in Rubber Manufacturing

    Rubber compounders use our material as a secondary accelerator to boost crosslinking rates and adjust cure profiles in high-performance vulcanization systems, particularly where precision resilience or elastic properties are vital, such as tires and technical molded rubber goods. The formulation addresses demands for controlled reactivity and tight batch-to-batch consistencies to reduce scorching and optimize elastic modulus tailoring, especially in natural and synthetic rubber blends for automotive, mining, and conveyor applications.

    Industry compliance standards

    • ISO 9001:2015 for quality management in rubber goods production
    • DIN EN 15330-1 for elastomeric performance in tire compounds
    • REACH Annex XVII for safe use of chemical accelerators in EU markets
    • ASTM D3182 for rubber compounding materials and mixing process control

    Typical usage ratio

    • 0.5–2.0 phr (parts per hundred rubber), with adjustment based on desired cure rate, compound viscosity, and other co-accelerators used. Precision is set according to physical property targets and cure time windows.

    Downstream process integration

    • The accelerator enters during the compounding phase, premixed with polymer base, fillers, and sulfur, prior to internal or open mill mixing. Accurate metering occurs before the homogenization step to ensure even dispersion and prevent local over-cure zones.

    Final product types

    • PCR, TBR, and OTR automotive tires
    • Conveyor and transmission belts
    • Anti-vibration mountings and gaskets
    • Precision-molded rubber seals for hydraulic and pneumatic systems

    2. Intermediate in Agrochemical Synthesis

    Producers of certain sulfur-containing crop protection agents incorporate our raw material during active ingredient synthesis steps, exploiting its methylthio functionality to build targeted molecular scaffolds. The transformation exploits established condensation and substitution routes, ensuring reliable yields and product purity suitable for downstream processing. Production scale and batch design follow domestic and export regulatory frameworks for intermediates in active ingredient supply chains.

    Industry compliance standards

    • ISO 9001:2015 for multi-step chemical synthesis
    • FAO/WHO Specifications for Pesticide Technical Material
    • Chinese Ministry of Agriculture GB/T 1600-2001 for technical pesticide manufacturing
    • OECD Principles of Good Laboratory Practice (GLP) for analytical qualification

    Typical usage ratio

    • 0.2–1.0 eq (molar equivalents relative to targeted intermediate), scaled based on stoichiometric requirements and reaction pathway details. Final ratio determined by conversion efficiency and impurity control parameters.

    Downstream process integration

    • Material is charged to the reactor at early condensation or alkylation stages, participating as a sulfur donor and carbon skeleton source in key intermediate synthesis before purification, separation, and final downstream functionalization steps.

    Final product types

    • Thioether-based insecticide active substances
    • Fungicide precursors for formulated agricultural chemicals
    • Herbicide intermediate supply for subsequent coupling reactions
    • Custom synthesis building blocks for contract agrochemical producers

    3. Functional Additive in Lubricant Formulations

    Lubricant and grease formulators employ Bis(Methylthio)Methane as a sulfur-based functional additive to enhance extreme-pressure (EP) performance, oxidation stability, and anti-wear characteristics in synthetic and mineral oil blends. The material’s reactivity profile supports modern gear oil and industrial lubricant systems, where stable long-chain sulfur donors lower wear and scuffing under high mechanical loads. Dosage optimization is performed in line with balancing performance, odor, and color requirements for finished lube products, especially in high-performance and extended-service interval applications.

    Industry compliance standards

    • API GL-4/GL-5 (American Petroleum Institute) gear oil specifications
    • DIN 51517 Part 3 for industrial gear oils
    • ISO 12925-1 for lubricating oils requirements
    • SAE J2360 for automotive gear lubricant performance approval

    Typical usage ratio

    • 0.1–0.5 wt%, adjusted during pilot blending trials and based on base oil group, required sulfur content, and performance balance with other EP/AW agents. Lower inclusion prevents over-sulfurization and mitigates adverse odor or staining in lighter base fluids.

    Downstream process integration

    • Introduced during base oil blending before final homogenization and additive package dosing stages. Inline monitoring of sulfur content and additive solubility ensures batch consistency prior to final filtration and packaging.

    Final product types

    • Industrial gear oils
    • Automotive hypoid gear lubricants
    • High-pressure greases for mechanical systems
    • Specialty cutting oils for metalworking

    4. Chemical Intermediate for Pharmaceutical Synthesis (Process Reagent)

    Pharmaceutical processors utilize Bis(Methylthio)Methane as a reagent or protecting group precursor in the early stages of small-molecule active pharmaceutical ingredient (API) synthesis, particularly for sulfur-bridged scaffolds or drug candidates requiring methylthio functionalities. Usage is confined to process chemistry, never as an API or excipient, and is strictly regulated and controlled for impurity profile and trace residue handling as per cGMP systems, with validated removal and analytical verification steps.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • U.S. FDA 21 CFR Part 211 for process chemical controls in pharmaceutical synthesis
    • European Pharmacopoeia 10.0 (Ph. Eur.) for intermediates handling
    • Chinese Pharmacopoeia ChP 2020 for chemical synthesis reagents

    Typical usage ratio

    • Varies typically between 0.1–1.5 equivalents depending on target molecule structure and specific sulfur insertion step. Process chemists set the charge according to desired yield, impurity limits, and downstream workup feasibility.

    Downstream process integration

    • Charged to reactor during early or mid-stage route steps as a building block for thioether linkage formation or protection group introduction, followed by downstream purification, intermediate isolation, and final API synthesis.

    Final product types

    • API intermediates for small-molecule drugs
    • Pharmaceutical process reagents for CDMO operations
    • Custom research compounds supplied for investigational new drug (IND) projects
    • Sulfur-linked molecules used as scaffolds for medicinal chemistry programs
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    Certification & Compliance
    More Introduction

    Bis(Methylthio)Methane: Insights from the Plant Floor

    Rooted in Chemistry: Our Approach to Bis(Methylthio)Methane

    Chemistry works best when experience meets reliable science, and nowhere do we see that more clearly than with Bis(Methylthio)Methane. For those not steeped in the daily business of chemical production, this clear, colorless liquid might not turn many heads at first. But walk through our plant and you see how its distinctive sulfur-methyl structure makes the difference for customers looking for selective reactivity and stability. Manufacturing Bis(Methylthio)Methane isn’t a simple affair—there’s careful balance between purity, consistent molecular composition, and practical concerns like controlled odor or trace sulfur content. Each batch needs the same vigilance, the same monitoring, and the same deep understanding of the chemistry as the batch before it.

    Technical Overview: Model and Specifications Forged by Experience

    Our standard product matches what the market expects in high-grade Bis(Methylthio)Methane: molecular formula C3H8S2, a typical purity level upwards of 98.0%, and controlled moisture to keep hydrolysis at bay. Within our facilities, each tank and distillation column runs with automated controls, ensuring specifications that beat the simple benchmarks of appearance and odor by enforcing a carbon-sulfur analysis regime that’s been honed through decades of real-world production. Plant teams know the value of analyzing each drum for minute peroxide formation or sulfur traceability—a less rigorous routine risks quality shifts that quickly show up in downstream reactions. In practice, requirements from different sectors—agrochemicals, pharmaceuticals, fine chemistry—have push-pulled us into refining those small but critical details in how we handle transfer, labelling, and long-haul storage.

    Purposeful Usage in Industry

    The tangible appeal of Bis(Methylthio)Methane sits in its versatility. As a sulfur donor, it finds a natural fit in organic synthesis. The methylthio functional groups let process engineers use it for specialized sulfur-methylation reactions, often outcompeting simpler dithiols or other alkyl sulfides for selectivity and yield. Specialty applications in crop protection or pharmaceutical intermediates benefit from its reactivity without sacrificing process safety—because it’s less volatile and easier to weigh than smaller thiols, operators handle it with greater confidence. Over the years, our work with downstream users highlights real advantages during scale-up. Feedstock reliability, consistent boiling point, and clean sulfur release allow shorter process cycles without shifts in product profile—a point echoed across both pilot and full-scale plants.

    Getting the Most from Bis(Methylthio)Methane: Insights from Real Production

    Raw numbers on a spec sheet only scratch the surface. Any plant manager will tell you how batch-to-batch variability—including subtle pH swings or trace contamination—can derail an entire campaign if the upstream chemistry isn’t rock-solid. We tighten our production by pairing classic distillation with on-line gas chromatography and moisture analysis. Years of troubleshooting customer complaints point to one thing: it pays to pay attention up front. Minimizing oxygen pickup during transfer, running inert purges, and using grade-specific containers has kept our shipments on-spec after weeks in transit.

    Feedback from chemical engineers shows that Bis(Methylthio)Methane displays a sweet spot between reactivity and stability. Compared to some analogs, it resists thermal breakdown under standard conditions without generating excess odors or off-gassing in confined storage. When end-users need precise sulfur insertion—either in pharmaceuticals or complex organic synthesis—our product responds cleanly, offering higher reproducibility and fewer side products than lower-purity alternatives.

    Comparison with Similar Compounds: What Sets Bis(Methylthio)Methane Apart

    For those building a case for Bis(Methylthio)Methane, comparisons to its chemical cousins provide useful context. Straight-chain dialkyl sulfides can certainly donate sulfur, but their volatility and tendency to oxidize in air restrict safe handling. Dithiols may look attractive on paper, offering multiple reactive sites, but they often carry a sharper odor and higher toxicological concern in industrial settings. Bis(Methylthio)Methane sits in a middle ground: robust enough for bulk applications, clean enough for more sensitive synthetic needs, and less prone to cost spikes compared to some specialty sulfur chemicals.

    The difference becomes apparent inside process lines. On a mass balance sheet, operators find less loss to vapor phase, and waste streams contain less unreacted starting material—clearing the way for easier wastewater management or downstream purification. That efficiency, tracked over years of operation, saves both raw materials and effort. Plant-based observations like reduced fouling and lower corrosion in our reactors also set this material apart. With sulfur chemicals, those little details add up fast—especially during long campaigns or when introducing new chemistries to old equipment.

    Manufacturing Realities: Process Controls That Shape Quality

    Manufacturing sulfur-methyl compounds requires more than textbook chemistry. Every step—starting from raw material selection—demands checks against trace metals, moisture, and unwanted byproducts. In practice, sulfur donors like Bis(Methylthio)Methane invite special challenges: residual catalyst management, odor abatement, and air exclusion. Our teams counter these with custom-built process loops, including inerted reactors, real-time sulfur analysis, and closed transfer systems. These investments grew from years watching less-controlled operations struggle with product yellowing, settling, or bottle fouling.

    Purification doesn’t end at the reactor. Down to every valve and gasket, cleaning schedules and oxygen scrubbing make a difference. Early mistakes in open-air transfers or generic drum usage prompted us to redesign our lines for reduced atmospheric exposure, and these upgrades reflect in today’s product stability. Customers report less line plugging, easier metering, and improved repeatability batch after batch. For product delivered internationally, tight packaging specs developed through real shipping data decrease pressure release incidents, a benefit that shows up both in customer feedback and end-of-year cost savings.

    Meeting Quality and Regulatory Demands, Naturally

    Long-term trust in Bis(Methylthio)Methane rests on more than meeting minimum specs. Most users in specialty chemicals and life science sectors care about traceability, supply consistency, and regulatory standing—things only manufacturers can promise with confidence. Compliance checks run deep in our operation: finished product leaves our plant only after batch-level documentation and on-site confirmation of hazard communication. Our lab logs stand open for regulatory spot-checks, helping customers satisfy evolving environmental and safety expectations.

    Being a manufacturer often means saying no to rushed shipments or unplanned volume spikes. Instead of chasing short-term orders, our business leans on planning and risk-management, avoiding the kind of last-minute substitutions that introduce variability nobody wants. Over the years, this discipline has smoothed out both customer relationships and line performance. Regulatory inquiries or registration needs don’t slow our supply chain, because answers and documentation sit ready on our side. The benefit isn’t just security—it’s visible in fewer disruptions and better rapport on technical calls or audits.

    Industrial Applications: Where Knowledge Meets Need

    The real-world value of Bis(Methylthio)Methane claims its place across multiple industries. We see steady pull for its use as a feedstock in agricultural actives—products that ask for predictable sulfur release and resistance to weathering. Work in flavor and fragrance synthesis relies on its methylthio group for tailored, high-intensity aromas without the harshness of simpler thiols. In research-grade chemistry, its predictable yield simplifies synthesis of heterocycles and complex intermediates. Teams in our customer labs confirm the value of consistent purity when scaling from gram-scale screening to multi-ton campaigns.

    Application feedback pushes us to innovate—chemists challenged us on minimizing byproduct in pharmaceutical pathways, so we refined our purification tower profiles. Engineers working in green chemistry requested tin-free processes and lower residual heavy metals, so our in-process checks increased and our catalysts shifted. We listen as much as we innovate, using industry need as the mirror for our own plant practices. The everyday stories—cleaner batch signatures, better phase separation, tighter analytical data—shape which process investments get top billing year after year.

    Beyond the Drum: Logistics, Handling, and Customer Care

    Getting Bis(Methylthio)Methane from our plant floor to customer facilities means more than coordinating trucks or containers. Sulfur compounds build up static risks, odor issues, and evaporative losses without robust packaging. Our crews now use heavy-walled drums, lined totes, and specialty vent closures—an improvement prompted directly by earlier incidents of leakage or odor bleed in transit. Plant-side, our bulk operators track ambient temperature swings to avoid expansion risks, and each shipment includes tailored gas buffering to avoid peroxide formation from exposure.

    Accidents once taught us about the hazards of improper labeling or generic storage. Now every delivery includes QR-based tracking, specification sheets, and plain-language shipping instructions based on real experience. We offer direct support to site chemists and logistics managers, not just paperwork—sending plant engineers to help with unfamiliar transfer systems or provide troubleshooting if storage temperatures veer out of range. Over time, fewer insurance claims and simpler customs clearances have marked these policies as worthwhile.

    Future Developments and Continuous Improvement

    Keeping pace with customer and regulatory expectations has shifted our Bis(Methylthio)Methane plant toward digitalization and ESG priorities. Automating moisture and purity analysis tightened margins on process control—reducing results variance on spec sheets. Investments in green chemistry, such as reducing vented sulfur emissions from pressure relief operations, have both improved employee safety and won praise from local regulators. As requests for renewable or bio-based inputs grow, our procurement arms continue to test alternative feedstocks without sacrificing product performance or regulatory acceptance.

    Customer relationships also drive us to share technical lessons—helping new entrants in specialty manufacturing avoid pitfalls with storage, incompatible materials, or older analytics. Industry consortia and technical briefings turn plant experience into better written standards and improved guidelines, which reflect in the wider market as lower hazard profiles and reduced emergency incidents. We see the benefit here, not just as lower claims or better word-of-mouth, but as visible improvements in process safety and finished-product quality among those adopting similar practices.

    Building Success: Why Consistency in Bis(Methylthio)Methane Matters

    In the world of sulfur-methyl chemistry, small details create the margin between average and outstanding. Technological advances matter, but they need a foundation of consistent, hands-on management—every shift, every lot. Years of accumulated plant experience shape everything from material selection to final labeling. By putting the right equipment and people in place, and tuning each step of the process around both chemistry and real-world events, we supply Bis(Methylthio)Methane that gives customers confidence to push the boundaries in their respective fields. Our learning isn’t static: it grows with each campaign, each conversation, and every challenge a customer sets in front of us.

    Those lessons build a product that stands out not through glossy brochures, but through measurable traceability, real user stories, and a plant culture that values reliability over speed. Bis(Methylthio)Methane’s strength comes from the knowledge we pour into it—practical, science-based, and relentlessly focused on real-world needs.