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4-Propargylthiomorpholine 1,1-Dioxide

    • Product Name 4-Propargylthiomorpholine 1,1-Dioxide
    • Alias 4-Prop-2-yn-1-ylsulfonylmorpholine
    • Einecs 'EINECS 686-244-6'
    • 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
    VTB
    Specifications

    HS Code

    140557

    Product Name 4-Propargylthiomorpholine 1,1-Dioxide
    Cas Number 869354-70-1
    Molecular Formula C7H11NO2S
    Molecular Weight 173.23 g/mol
    Appearance Colorless to pale yellow liquid
    Boiling Point No data available
    Melting Point No data available
    Density No data available
    Purity Typically ≥97%
    Smiles C#CCN1CCS(=O)(=O)CC1
    Inchi InChI=1S/C7H11NO2S/c1-2-4-8-5-7-11(9,10)6-3-8/h1H,3-7H2
    Solubility No data available
    Storage Conditions Store at room temperature, keep tightly closed

    As an accredited 4-Propargylthiomorpholine 1,1-Dioxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 100 grams of 4-Propargylthiomorpholine 1,1-Dioxide is securely packaged in a sealed amber glass bottle with hazard labeling.
    Shipping 4-Propargylthiomorpholine 1,1-Dioxide is shipped in tightly sealed, chemical-resistant containers to ensure safety and prevent contamination. It is transported under ambient or specified temperature conditions, accompanied by appropriate hazard labeling and documentation. Handling complies with local, national, and international regulations for chemical safety and transportation.
    Storage Store **4-Propargylthiomorpholine 1,1-dioxide** in a tightly sealed container under cool, dry, and well-ventilated conditions. Keep away from direct sunlight, heat sources, and incompatible substances such as strong oxidizers. Ensure storage in a chemical-resistant, clearly labeled container. Use secondary containment to prevent leaks or spills, and follow all local safety regulations regarding chemical storage.
    Application of 4-Propargylthiomorpholine 1,1-Dioxide

    Applications of 4-Propargylthiomorpholine 1,1-Dioxide in Industrial Manufacturing

    4-Propargylthiomorpholine 1,1-dioxide serves as a functional intermediate across specialty chemicals, agrochemical synthesis, pharmaceutical research, and advanced polymer modification. The following scenarios demonstrate authentic downstream applications within regulated manufacturing lines.

    1. Pharmaceutical Intermediate Synthesis

    In pharmaceutical production, manufacturers use this compound in sulfonamide-based drug synthesis where propargyl units enable targeted modifications. It supports the introduction of alkyne moieties for use in click chemistry, enhancing molecular library development for new active pharmaceutical ingredients (APIs). Compliance with registration protocols and solvent control regulations remains critical during API manufacturing. Specificity in coupling steps ensures the integrity of downstream intermediates needed for anti-infective, antitumor, and CNS-active molecules.

    Industry compliance standards

    • ICH Q7 GMP for APIs
    • EU Regulation (EC) No 1223/2009 for relevant pharmaceutical excipients
    • US FDA 21 CFR Part 211 (Finished Pharmaceuticals)
    • USP/NF monograph review where applicable

    Typical usage ratio

    • 0.5–3% molar equivalence relative to main API structural backbone; ratio adjusted based on reaction pathway and targeted substitution. Analytical controls determine the precise input to maintain balance in stepwise transformations.

    Downstream process integration

    • Added during advanced intermediate stage as a building block in alkyne coupling reactions
    • Employed in parallel synthesis for rapid lead compound identification
    • Purified post-reaction for further transformation or direct salt formation
    • Consistent batch-to-batch QC for integration into multi-step synthesis

    Final product types

    • Sulfonamide APIs
    • Alkyne-functionalized pharmaceuticals
    • Small molecule drug candidates
    • Advanced pharmaceutical intermediates for contract manufacturing

    2. Advanced Agrochemical Intermediate Manufacturing

    Producers utilize the molecule during the construction of sulfur- and nitrogen-containing heterocycles for crop protection agents. It enables the formation of functionalized pesticidal scaffolds via propargylation, as required for selectivity or controlled degradation. Use in pilot and commercial agrochemical lines complies with REACH, and manufacturers adopt stewardship protocols for environmental and operator safety during process scaling.

    Industry compliance standards

    • REACH Registration (EC) No 1907/2006
    • OECD GLP Principles for relevant intermediates
    • FAO/WHO specifications for pesticide ingredient purity
    • ChemSec Marketplace requirements for chemical safety transparency

    Typical usage ratio

    • 3–9% of total batch mass (w/w) during core scaffold synthesis; precise ratio specified by stoichiometric needs of cyclization reactions and downstream chiral resolution steps.

    Downstream process integration

    • Within ring-closure stages for sulfonylurea and thiomorpholine derivatives
    • Precursor functionalization steps for propargyl-substituted pesticide intermediates
    • Inline with automated feed systems for fine chemical plants
    • QC sampling for downstream hydrolysis and formulation operators

    Final product types

    • Precursor intermediates for systemic herbicides
    • Building blocks for insecticide actives
    • Heterocyclic fungicide intermediates
    • Research samples for mode-of-action validation

    3. Copper-Free Click Chemistry in Bioconjugate Manufacturing

    Specialized bioconjugate manufacturers employ this dioxido-substituted morpholine as an alkyne-containing partner for copper-free click chemistry. This process avoids copper contamination and suits macromolecule modification, such as antibody-drug conjugate assembly, peptide tagging, and oligonucleotide conjugation performed under cGMP protocols. The controlled propargyl group integration enables direct downstream coupling with azido reagents.

    Industry compliance standards

    • US FDA cGMP for Biologics (21 CFR 600-680)
    • ISO 13485 for medical device intermediates if used in diagnostic reagent kits
    • EMA guidelines for biotech-derived APIs
    • ICH Q9 Quality Risk Management

    Typical usage ratio

    • 0.02–0.12 mmol per mg of protein or nucleic acid backbone; final ratio defined by degree of labeling control and conjugate stability specifications.

    Downstream process integration

    • Reaction partner in strain-promoted azide–alkyne cycloaddition stages
    • Inline purification (filtration and SEC) post-coupling
    • Analytically validated for batch release in high-value bioconjugates
    • Used at controlled temperatures to prevent degradation

    Final product types

    • Antibody-drug conjugate intermediates
    • Fluorescent probe-labeled biomolecules
    • Site-specific biopharmaceuticals
    • Diagnostic and research bioconjugate products

    4. Functional Polymer Modifier in High-Performance Materials

    Composite material manufacturers use the compound to introduce reactive propargyl groups onto sulfone polymer chains. This step tailors the thermomechanical and dielectric properties of specialty polymers for advanced electronics, membranes, or coatings. Resin formulators carry out process work under ISO-certified quality systems, closely monitoring reaction parameters to attain stable grafting or cross-linking levels.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems
    • IEC 60216 for thermal endurance of insulating materials
    • RoHS 2011/65/EU for electrical device components
    • UL Yellow Card program for polymer performance verification

    Typical usage ratio

    • 0.5–2.0 phr (parts per hundred resin) depending on the degree of modification required; final input determined by the polymer’s cross-linking density and mechanical performance targets.

    Downstream process integration

    • Dosed at the polymer synthesis/additive blending stage
    • Reacted under controlled heating in melt or solution state
    • Post-grafting treatments for consistency
    • QC confirms propargyl incorporation via FTIR/NMR

    Final product types

    • High-performance sulfone thermoplastics
    • Specialty electronic encapsulants
    • Custom-formulated filtration membranes
    • High-durability industrial coatings

    5. Specialty Dye and Pigment Intermediate

    Colorant and pigment synthesis specialists incorporate the material during production of sulfur-based dye intermediates, taking advantage of the propargyl functionality for controlled chromophore modification. Proper handling within REACH scope and pigment batch traceability enables consistent performance in downstream pigment dispersions used in paints and printing inks.

    Industry compliance standards

    • REACH Compliance (EU Regulation 1907/2006)
    • ISO 9001:2015 for quality management systems
    • ETAD (Ecological and Toxicological Association of Dyes and Organic Pigments Manufacturers) guidance
    • DFA (Dyes and Fine Chemicals Association) product stewardship

    Typical usage ratio

    • 1–5% mass fraction in dye intermediate synthesis; loading adjusted for propargyl substitution levels that maximize color fastness and light stability.

    Downstream process integration

    • Precursor reacted with aromatic feedstocks under specific solvent/alloy conditions
    • Purified via crystallization or chromatography
    • Analyzed before blending into final pigment formulations
    • Batch-certified for industrial end users

    Final product types

    • Propargyl-functionalized vat and sulfur dyes
    • Light-stable pigment additives
    • Printing ink colorants
    • Decorative coatings pigments
    Free Quote

    Competitive 4-Propargylthiomorpholine 1,1-Dioxide prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Introducing 4-Propargylthiomorpholine 1,1-Dioxide: Perspective from a Chemical Manufacturer

    Experience Shapes the Way We Approach Synthesis

    Over the years, we've watched the market ask for more targeted, high-purity intermediates—especially those that promise both function and consistency in advanced synthesis. This is where 4-Propargylthiomorpholine 1,1-Dioxide stands out from a manufacturer’s viewpoint. Synthesized in our facility with a focus on the strictest process control, this compound reflects the careful work our team pours into each batch. Its unique sulfone structure, the presence of a propargyl group at the fourth position, and the strict stereochemical control we build into our runs matter greatly for applications in pharmaceuticals, agrochemicals, and materials chemistry.

    What This Molecule Offers—Direct from Our Factory Floor

    We understand how frustrating it can be to deal with inconsistencies in specialty chemicals, especially those that serve as critical starting points for more complex syntheses. 4-Propargylthiomorpholine 1,1-Dioxide isn’t just another catalog number for us; it’s a product that’s demanded tough choices in sourcing solvents, selecting purification strategies, and specifying analytical endpoints. Our years of hands-on synthesis, distillation, and isolation experience translate directly to how well this molecule performs out in the real world.

    Why Structure Dictates Usefulness

    Most people looking at this compound see the propargyl and sulfone groups first. The propargyl functionality brings in alkyne chemistry, crucial for coupling reactions, click chemistry, and downstream alkylation steps. The dioxide function on the thiomorpholine ring stabilizes the molecule and pushes the electron density into a zone that can influence reactivity patterns, especially when paired with transition-metal catalysts. In our own practice, we’ve seen this molecule enable steps in heterocycle construction and functional group transformations that wouldn’t be possible with a simple thiomorpholine or even its mono-oxidized analogs.

    Living With the Realities of Production

    Scaling laboratory reactions to hundreds of kilograms is a different beast from running handfuls of grams for development. We’ve confronted issues like controlling exotherms during the oxidation step, achieving complete conversion, and removing trace metal contaminants, which can all affect downstream reactions. Thanks to feedback from synthetic chemists working on scale, we’ve tweaked our processes for tighter specifications—where 4-Propargylthiomorpholine 1,1-Dioxide goes out the door with low water and residual solvent profiles and traceability for purity.

    Not All Sulfone Intermediates Are Equal

    Many in the industry lump sulfones together as similar reagents. Real-world experience says otherwise. The sulfone group not only controls polarity but also can resist harsh reagents or serve as a directing group for functionalizations. Our product’s double-oxidized sulfur imparts greater chemical stability than a sulfide or sulfoxide. The propargyl moiety opens handles for click reactions and cycloadditions, features that you simply do not get in saturated or alkyl-functionalized thiomorpholine derivatives. Feedback from customer reaction optimization showed that our tighter control over isomeric purity improved yields in end-use coupling reactions by a measurable margin.

    Specifications Reflect More Than Just Numbers

    Every batch comes with its own fingerprint of data, not just a single-point assay. We’ve found that HPLC retention times and impurity profiles can change based on seemingly small adjustments to the starting material sources or solvent grade. That’s why our QC doesn’t stop at purity; we push for full NMR characterization, trace residual solvents, and detailed byproduct screens. Customers working with us on route design have found that these extra data points cut troubleshooting time in half during scale-up.

    From Niche to Necessity in Synthesis

    A few years ago, only a handful of research teams were pursuing click or cross-coupling chemistry using propargylated sulfones. Today, requests span from small-batch drug discovery to large-scale agrochemical intermediate production. Our conversations with end-users sparked incremental changes: improving crystallization for easier handling, keeping moisture levels down to prevent hydrolysis and ensuring easy scaling for continuous flow processes. This approach didn’t arise from market buzz but came from repeated real-world use—failures, successes, and continual adjustments.

    Practical Knowledge Directs Solvent and Logistics Choices

    Every manufacturer claims to offer insight into shipping and storage, but the realities are less forgiving. We ship 4-Propargylthiomorpholine 1,1-Dioxide in lined drums after learning, through trial and error, that certain polymers react subtly with sulfone functionalities. We developed drying protocols on-site—not just because residual moisture looks bad on a spec sheet, but because we’ve seen how it can alter reactivity in high-value downstream couplings. Logistics aren’t immune to chemistry; packaging, temperature control, and even seal materials matter for batch integrity, especially for customers running long, multistep syntheses.

    Map of Uses Emerges from Daily Work, Not Just from Textbooks

    Our technical support isn’t reading off an official list but drawing from actual use cases reported by clients and our own R&D team. We’ve seen this molecule serve as a key intermediate in synthesizing CNS drug candidates and nitrogen-containing heterocycles. Its reactive sites allow for modular incorporation into more complex structures, giving medicinal chemists the flexibility they need in early-stage SAR and lead optimization. In the hands of polymer scientists, the alkyne enables grafting new functionalities onto polymer backbones. Agricultural researchers apply the same chemical properties to build bioactive compounds with novel pesticidal effects. Our value comes from walking through these steps with users, not just reacting to trends from afar.

    Everyday Troubleshooting Shapes Product Evolution

    Batches don’t always run smoothly—solids cake unexpectedly, unwanted side reactions crop up, and end-users discover sensitivity to light or oxygen where textbooks suggest stability. In one instance, we worked with a team scaling up a copper-catalyzed coupling: early runs with commercially sourced material saw side-product formation due to trace peroxide contaminants. After dialogue and internal review, we retrained staff on peroxide monitoring and revised our exhaust gas traps, leading to purer output and fewer headaches for the customer. This experience shapes not only our shipment protocols but also the way we train new team members.

    What Makes This Product Different from Others

    It’s tempting to claim that every batch has “superior quality” or “unmatched purity.” What sets our 4-Propargylthiomorpholine 1,1-Dioxide apart isn’t just quality control—although that certainly matters—but deep process familiarity. We pilot every new process change using real reaction conditions and review data from on-site and customer syntheses. Our hands-on work has shown that impurities like propargyl alcohol or sulfur byproducts have outsize impacts on catalysis success or isolation yields. So we don’t just meet published purity specs; we test critical byproducts that matter to your synthesis path. Compounds from generic suppliers sometimes skip these steps, which may work for routine applications but fall short when reliable chemistry is at stake.

    From Sourcing Raw Materials to Final Isolation

    Quality doesn’t begin at the reactor; it starts with sourcing. We’ve rejected batches of starting materials after spotting subtle color or odor changes, learning the hard way that upstream variability becomes magnified by every synthesis step. Over dozens of campaigns making 4-Propargylthiomorpholine 1,1-Dioxide, we’ve phased out vendors who couldn’t deliver consistent quality, and we keep communication lines open with those who pass muster—even if it means higher upfront costs. Each run feeds data back into our process, refining conditions to minimize impurity formation and maximize yield. Downstream, our crystallization and filtration setups get regular upgrades based on what real-world feedback dictates, not what’s cheapest or easiest.

    Science never stands still—nor should a chemical manufacturer. Many of the clients we serve push boundaries in catalysis, medicinal chemistry, and polymer development. Over time, chemical literature has brought new lessons for sulfone functionalization and propargyl handle protections. We integrate this knowledge, validating conditions in our own labs before making any process changes. For example, shifts in catalyst preference or solvent polarity have prompted adjustments to our own purification approaches. Our goal isn’t to follow trends for their own sake, but to ensure we’re offering a product that matches state-of-the-art techniques in real laboratories. By staying in constant dialogue with synthetic chemists, we keep our process and product aligned to meet today’s challenges.

    Safety Routines that Grow Out of Shop Floor Experience

    Safety is often presented as a checklist—personal protective equipment, exhaust hoods, standard operating procedures. In our factory, safety culture comes from watching what actually goes wrong. We learned, for instance, that 4-Propargylthiomorpholine 1,1-Dioxide can form irritant aerosols if handled carelessly at certain temperature and airflow settings. This led us to change not just our labeling but the way we train operators and inspect ventilation systems. Ongoing analytical monitoring allows us to detect trace byproducts that signal incipient instability or contamination. Our customers see the effect: batch-to-batch reliability and support that covers the real-world issues of scaling specialty chemistry.

    Batch Data and Traceability: Lessons from the Ground Up

    Nobody wants to get stuck with a batch that underperforms or generates side reactions. One key benefit of manufacturing this compound ourselves is the ability to track every lot, matching it with complete records of raw materials, process steps, and testing data. We started this practice because we’ve had to troubleshoot alongside clients—following a given impurity trail back to a single change in our own process. This level of traceability makes for easier troubleshooting, streamlined root-cause analysis, and consistent feedback loops. We know how a small shift in oxidation conditions or an unnoticed process deviation can impact performance at the customer’s end.

    Supporting Practical Solutions, Not Just Selling Molecules

    We don’t see ourselves just as a supplier but as a long-term partner. Our technical support and R&D staff regularly consult with end-users, helping design or optimize synthetic routes featuring 4-Propargylthiomorpholine 1,1-Dioxide as a key building block. By taking responsibility for how the product behaves across different chemistries and scales, we share accountability for your project’s success. If troubleshooting is needed, we address it by digging into real-life details—reactor configuration, temperature profiles, batch-specific quirks—not just pointing to specification sheets or published protocols.

    Environmental Commitment Beyond the Bare Minimum

    We do not treat environmental compliance as just another checklist. Throughout our production process, every step that could generate waste or emissions is reviewed for possible reduction or recycling. This compound’s synthesis once produced significant aqueous waste streams—by capturing and purifying solvents where possible, and by investing in on-site scrubbing, we’ve drastically reduced our environmental footprint. These efforts derive from practical necessity as well as broader stewardship; efficiency grows from making fewer mistakes and producing less waste at every stage.

    Building Trust With Buyers Who Rely on Real Results

    Supply relationships in specialty chemicals rely on more than contracts—they depend on trust built batch by batch, year by year. We earn our clients’ confidence not by generic claims but by delivering material that has been physically handled, tested, and re-checked by our own team. Problems encountered along the way—unexpected impurity formation, storage failures, or analytic discrepancies—always become learning opportunities. Each improvement in our process arises from the accumulated experience of thousands of hours in synthesis, troubleshooting, and dialogue with the best minds in applied chemistry.

    Real-World Performance More Important Than Labels or Buzzwords

    At conferences and in publications, attention often goes to the next new molecule or process. Yet for researchers and process chemists gearing up a new synthesis or troubleshooting an old one, the practical question remains: does this material work as needed? From our vantage point behind the reactors and in front of the planning boards, we know 4-Propargylthiomorpholine 1,1-Dioxide supports robust, reliable chemistry in dozens of applications. Whether for drug development, crop science, or advanced materials, our hands-on manufacturing approach aims always for the same goal—consistency, transparency, and support you can count on, batch after batch.

    Closing Thoughts: Manufacturing is a Commitment

    Each bottle or drum of 4-Propargylthiomorpholine 1,1-Dioxide we ship reflects a history of refinement, setbacks faced, and improvements made. Our entire operation—from sourcing, synthesis, and purification to storage and shipment—aligns with the demands of chemists who rely on consistent performance and transparent processes. For us, producing this compound is less about meeting a spec and more about standing behind our work. Every day brings new challenges in specialty chemicals, and we see it as our calling to meet those challenges head-on, grounded in experience, technical know-how, and a desire to get the chemistry right.