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Benzyloxy Sulfonyl Chloride

    • Product Name Benzyloxy Sulfonyl Chloride
    • Alias BzOSCl
    • Einecs '236-724-8'
    • 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

    591118

    ProductName Benzyloxy Sulfonyl Chloride
    CASNumber 1623-21-6
    MolecularFormula C7H7ClO3S
    MolecularWeight 206.65 g/mol
    Appearance White to off-white crystalline solid
    MeltingPoint 50-54 °C
    Density 1.36 g/cm3 (approximate)
    Solubility Reacts with water; soluble in organic solvents such as dichloromethane
    Purity Typically ≥98%
    StorageConditions Keep in cool, dry place; store under inert atmosphere
    HazardStatements Corrosive, causes burns, harmful if inhaled
    IUPACName Benzyloxysulfonyl chloride
    Synonyms Benzyloxy sulphonic acid chloride, Benzylsulfonyloxy chloride

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

    Packing & Storage
    Packing Benzyloxy Sulfonyl Chloride is supplied in a 100g amber glass bottle, securely sealed with a screw cap, and appropriate hazard labeling.
    Shipping Benzyloxy Sulfonyl Chloride is shipped in tightly sealed containers, protected from moisture and light, and kept at a cool, dry location. The packaging complies with hazardous material regulations due to its corrosive and reactive properties. Proper labeling and documentation are provided for safe handling and transport.
    Storage Benzyloxy Sulfonyl Chloride should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat, and sources of ignition. Keep the container tightly closed and segregated from incompatible materials, especially water, strong bases, and oxidizers. Use appropriate chemical-resistant containers. Ensure storage is secured and clearly labeled, preferably in a designated corrosives or reagent cabinet.
    Application of Benzyloxy Sulfonyl Chloride

    Applications of Benzyloxy Sulfonyl Chloride in Industrial Manufacturing

    Benzyloxy Sulfonyl Chloride supports key chemical transformations in advanced manufacturing sectors. This material, made under rigorous controls, performs critical functions in organic synthesis and specialty production. Below, we detail authentic industrial scenarios where this raw material plays a central role, with attention to regulatory, technical, and application-specific details encountered by true downstream users.

    1. Pharmaceutical Intermediate Synthesis

    In pharmaceutical manufacturing, this sulfonyl chloride performs as a selective sulfonylation reagent during the construction of API intermediates, such as sulfonamide-based compounds and complex heterocycle scaffolds. The process demands high reactivity and minimizing formation of undesired side products, aligning with GMP protocols. Chemists optimize reaction timing and conditions to fit the desired product profile and regulatory submissions, especially for multinational drug approvals.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP and Ph. Eur. monograph requirements for impurities
    • 21 CFR Part 211 (FDA cGMP for finished pharmaceuticals)
    • China Pharmacopeia (ChP) quality control for intermediates

    Typical usage ratio

    • 0.8–1.2 molar equivalents, titrated based on amine functional group excess and purity of substrate
    • Adjusted according to scale-up validation batch data

    Downstream process integration

    • Added during controlled sulfonylation step post-initial condensation
    • Reacted in solvent systems such as dichloromethane under inert atmosphere
    • Reaction followed by aqueous work-up and purification steps

    Final product types

    • Antibacterial sulfonamide API intermediates
    • Anti-inflammatory drug scaffolds
    • Peptidomimetic building blocks
    • CNS-active heterocycles

    2. Peptide Protection in Peptide Synthesis

    This compound serves as a benzyloxy-sulfonylation agent to protect amine groups temporarily during solid-phase and solution-phase peptide synthesis. The protection improves coupling selectivity, critical for manufacturing long and complex peptides. The downstream process adopts this functional group for orthogonal deprotection schemes, ensuring compatibility with modern synthetic protocols used in the commercial output of peptide APIs and research-grade peptides.

    Industry compliance standards

    • ISO 13485 standards for medical-grade peptide production
    • JECFA recommendations for food-grade peptides (in applicable peptide-based food additives)
    • ICH Q6A guidelines on specifications for new drug substances
    • EudraLex, Volume 4, GMP for advanced therapy medicinal products

    Typical usage ratio

    • 1.0–1.3 equivalents relative to amine-containing monomer
    • Adjusted depending on peptide length and resin loading

    Downstream process integration

    • Integrated into early stage of Fmoc-protected peptide assembly cycle
    • Used during selective protection of N-terminal or lysine side chains
    • Protection removed under mild acidic conditions at final cleavage

    Final product types

    • Pharmaceutical-grade peptide APIs
    • Diagnostic peptides
    • Cosmeceutical bioactive oligopeptides
    • Research peptides for biochemistry protocols

    3. Agrochemical Intermediate Manufacturing

    Benzyloxy Sulfonyl Chloride is integrated as a sulfonylating agent in the synthesis of key intermediates used in pesticide and herbicide formulation. Its precise reactivity assists in introducing sulfonamide functions into target molecules for improved biological activity and metabolic stability. Strict adherence to environmental, operator safety, and impurity controls is essential during agrochemical manufacturing for both local regulations and global registration dossiers.

    Industry compliance standards

    • FAO/WHO specifications for pesticide technical material
    • REACH (EC) No 1907/2006 registration when shipping within the EU
    • China’s GB/T 1604 agrochemical manufacturing guidelines
    • GLP compliance during analytical validation

    Typical usage ratio

    • 0.9–1.1 equivalents per target substrate
    • Adjusted to minimize excess and reduce downstream purification load

    Downstream process integration

    • Charged into sulfonylation reactors following amine precursor synthesis
    • Employed in batch or continuous production cycles
    • Product isolated and carried to further chlorination or amidation steps

    Final product types

    • Sulfonamide herbicide intermediates
    • Fungicide pre-cursors
    • Growth regulator intermediate compounds
    • Custom molecules for agrochemical contract manufacturing

    4. Specialty Polymer Additive Production

    This sulfonyl chloride supports the preparation of specialty polymer additives by introducing benzyloxy-sulfonyl moieties for customized solubility, flame retardancy, or thermal resistance. The molecule enters as a monomer modifier during synthesis of engineered resins and advanced plastics. Manufacturers use closely controlled reaction parameters to comply with automotive, construction, and electronics sector standards, as additive migration and stability must pass independent validation.

    Industry compliance standards

    • UL 94 (Flame retardancy of plastic materials)
    • ISO 9001:2015 (Quality Management System)
    • RoHS Directive 2011/65/EU for electronics-related polymers
    • ASTM D471 for elastomer compatibility testing

    Typical usage ratio

    • 0.5–2.5 wt% as co-monomer or chain-end modifier, based on polymer matrix requirements
    • Adjusted upwards for higher thermal stability targets

    Downstream process integration

    • Introduced during melt blending or solution polymerization
    • Reactive extrusion or batch addition to resin synthesis vessel
    • Blending with other performance additive packages

    Final product types

    • Heat-resistant engineering plastics
    • Flame-retardant masterbatches
    • High-performance polymer coatings
    • Functional elastomers for automotive gaskets

    5. Fine Chemical Synthesis for Electronic Materials

    Electronic and semiconductor industries employ this compound as a controlled sulfonyl source in synthesizing advanced organic semiconductor components and functional specialty chemicals. Purity and control of trace impurities remain crucial, as downstream processes must meet tight electronic industry standards. Reactions are typically managed in small-scale, high-purity reactors, supporting R&D or pre-commercial batch manufacture of performance-critical circuit and optical materials.

    Industry compliance standards

    • IPC-1752A (Material declaration management in electronics industry)
    • IEC 62474 (Material composition declaration for electrical and electronic products)
    • ISO 14001 Environmental Management System for specialty chemical labs
    • SCCP guidelines in cleanroom standards for semiconductor production

    Typical usage ratio

    • 1.0 equivalent per functionalized aryl or amine precursor
    • Fine-tuned based on LC-MS impurity mapping of output

    Downstream process integration

    • Employed during targeted organic transformations in intermediate synthesis
    • Used in high-purity, inert gas-purged equipment
    • Integration followed by multi-stage purification and crystallization workflows

    Final product types

    • Liquid crystal monomer intermediates
    • OLED and OPV precursor compounds
    • Dielectric organic additives for microelectronic applications
    • Charge-transport or blocking materials in photolithography
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    Certification & Compliance
    More Introduction

    Benzyloxy Sulfonyl Chloride: Direct Perspective from a Proven Manufacturer

    Introducing Benzyloxy Sulfonyl Chloride: Commitment to Quality from the Source

    Every kilogram of Benzyloxy Sulfonyl Chloride leaving our facility reflects years of hands-on chemical experience and careful attention to detail. This compound, offered specifically under the model designation of BZOSC-0402, stands apart due to the reliability and reproducibility of its performance in a range of synthetic applications. Our roots as a genuine manufacturer shape every lot that rolls off our lines, ensuring consistency from the molecular structure to the fine white crystals packed for shipment.

    Benzyloxy Sulfonyl Chloride draws attention from specialists in organic synthesis for its unique structure, binding a benzyloxy moiety to sulfonyl chloride. This gives chemists distinct reactivity that enables selective protection, sufonylation, and functional modification of various organic substrates. Over decades, our team has refined crystallization steps, reduced side reactions, and eliminated batch-to-batch variability. By leveraging a closed-loop quality control system and frequent spectral analysis—including 1H NMR and HPLC purity checks exceeding 98%—we commit to purity standards that academic papers and scale-up projects often demand.

    Why Purity and Consistent Physical Properties Matter in Real Lab Settings

    Slight changes in the physical form and purity of Benzyloxy Sulfonyl Chloride can make or break a synthetic process. Users tell us impurities lead to unwanted by-products or blocked reaction pathways. Early in our manufacturing journey, we struggled with yellowing and clumping from trace moisture and contaminants. After refining our dehydration protocols, we now deliver a stable, free-flowing crystalline powder with melting points consistently checked between 72–76°C. These tight controls prevent delays and inconsistencies in downstream processing, especially in scale-dependent pilot projects and pharmaceutical intermediate production runs.

    Some competitors offer bulk sulfonyl chlorides obtained by aggregating products from numerous sources. The result often means a warehouse shuffle, aging stock, or variable physical characteristics. Our approach is different: starting from chlorosulfonic acid and benzyl alcohol under carefully controlled temperature and atmosphere, we produce Benzyloxy Sulfonyl Chloride in our dedicated reactor trains. Handled by operators familiar with its potent reactivity, the product never mixes or gets cross-contaminated by different lots. This dedication translates into direct risk reduction for chemists relying on precise transformation yields.

    Application Spotlight: Honest Insights from Scale-Up Partners

    While Benzyloxy Sulfonyl Chloride fits a textbook definition as a sulfonylating agent, the feedback we get from real-world chemists often revolves around time savings, ease of handling, and predictable output. One pharmaceutical company shared their story about switching from a resold, repacked product to our direct-manufactured grade. Previously, their sulfonamide formation steps dragged on due to inconsistent dissolution and off-smelling byproducts. After switching, yields climbed above 85%, and batch failures dropped to a record low. While no process stands immune to troubleshooting, these results stem from our unbroken commitment to root-cause investigation and on-site lot testing.

    In academic labs, the controlled introduction of Benzyloxy Sulfonyl Chloride allows for targeted synthesis of rare aryl sulfonates and protected amine intermediates. We take guidance from these research partners. Hearing from a university chemist that spontaneous decomposition was eliminated by our minimal trace water specifications gave our team renewed focus on maintaining anhydrous handling from production to packaging.

    Differentiation: Standing Apart from Commodity Sulfonyl Chlorides

    Benzyloxy Sulfonyl Chloride brings more than just another sulfonyl chloride to the bench. The benzyloxy group tailors reactivity, allowing selective introduction onto substrates with base-sensitive moieties, in sharp contrast to harsh reagents like tosyl chloride or mesyl chloride. Chemists report that the steric and electronic buffering reduces overreaction on delicate heterocycles or multi-functionalized molecules. Working directly with product developers, we fine-tune impurity profiles, producing reactivity curves and tailored drying cycles that mainstream suppliers rarely offer.

    As a manufacturer, we field calls about interchangeability with other sulfonyl chlorides. If a process requires benzyl protection and later deprotection without damaging other acid-labile groups, Benzyloxy Sulfonyl Chloride frequently outperforms. Our in-house comparisons routinely show cleaner reaction mixtures than with non-benzylic sulfonyl chlorides, avoiding prolonged purification and wasted solvents. After receiving chromatograms and process notes from both contract manufacturers and universities, it became clear how much the “minor” differences in side product levels change total project costs.

    Sustainability, Safety, and Value from Manufacturer-Level Controls

    Responsible manufacturing underpins our operation. Sulfonyl chlorides, by nature, demand careful venting protocols, as hydrochloric acid off-gassing poses health and corrosive hazards. Thanks to closed reactors, in-line scrubbers, and rigorous operator training, we’ve never had a safety incident attributed to BZOSC-0402 production. Our engineers implemented solvent-recycling loops years before local regulations tightened, cutting halocarbon waste while preserving high purity. This on-site control is something resellers simply cannot provide insight into.

    Product stewardship does not stop at our loading bays. Each Benzyloxy Sulfonyl Chloride container comes with usage guidance written by our senior chemists who have conducted the very reactions our customers perform. Longevity studies show our sealed drums resist hydrolysis and decomposition, even under extended shipping conditions or temporary storage. Customers facing logistical bottlenecks can rely on our product holding its specification, backed by our historical batch data.

    Supporting Process Development and Downstream Applications

    Chemists scaling up demand both technical support and process transparency when it comes to sensitive reagents like Benzyloxy Sulfonyl Chloride. Over years of customer feedback, we’ve learned that collaborative troubleshooting—whether adjusting dissolving protocols or optimizing equivalents—delivers faster, more successful outcomes. Unlike distributors, our staff includes scientists with direct knowledge of the underlying reaction mechanisms at play, who share data on reaction kinetics, optimal storage methods, and impurity handling.

    With Benzyloxy Sulfonyl Chloride, our partners target transformations such as N-sulfonylation of amines, sulfonyl ester formation, and the installation of protected sulfonamide functionalities for further derivatization. We receive technical notes from manufacturers scaling up everything from specialty crop protection chemicals to non-nucleoside antiviral intermediates. Our lot-to-lot reproducibility and robust paperwork provide regulatory compliance for registration and validation stages.

    Transparency in Manufacturing: Addressing Real-World Questions

    Visitors touring our facility often question how we achieve consistency batch after batch. Our process starts with high-purity benzyl alcohol and freshly distilled chlorosulfonic acid. Temperature gradients remain tightly regulated, preventing side reactions that could introduce colored byproducts or hard-to-filter residues. Swift downstream quenching and vacuum-stage crystallization lock in the desirable attributes of Benzyloxy Sulfonyl Chloride, while liquid and solid impurities drop below 1% thresholds. Without transparency into this journey, resold products often fall short, hampering project deadlines and downstream reproducibility.

    Recent years have highlighted another key differentiator: fast, honest communication. In global markets, unexpected supply disruptions and shifted regulatory landscapes challenge even the best-run supply chains. Customers need advance notice if a feedstock shortage or transport bottleneck could slow delivery. Our status as the manufacturer means decision-makers are only a call away. We trace every production parameter—from atmospheric moisture to filtration dwell times—so any deviation can be quickly corrected or flagged in the rare instance an issue arises.

    Key Factors for Choice: The End-User Perspective

    We often hear that buyers look beyond price to reliability and after-sales technical competence. In pharmaceutical projects, minor variances in Benzyloxy Sulfonyl Chloride quality create enormous ripple effects, stretching timelines and risking clinical trial setbacks. With in-house spectroscopic validation and full COA on every batch, we give end-users confidence to proceed, reducing the need for costly repeat syntheses and unnecessary troubleshooting cycles.

    Another frequent challenge involves shelf-life and stability. Tests in our QC labs involve accelerated aging studies at multiple humidity and temperature settings, simulating transport from our facility to remote synthesis plants. Results consistently show that our packaging design—airtight barriers, desiccant inserts—delays degradation and physical changes even in uncontrolled environments. These hard-won insights help process engineers calculate reliable reorder points and avoid costly inventory write-downs.

    Lessons from Decades of Manufacturing: Practical Adaptations and Continuous Learning

    The journey toward manufacturing the highest quality Benzyloxy Sulfonyl Chloride owes just as much to persistent errors as it does to long-term improvement. Years ago, recurring filtration issues in drying lines forced a hard look at particle size distribution controls. Adjustments to cooling rates enabled finer, more consistent particles, reducing losses during transfers and cutting waste by nearly 15% in subsequent quarters. Frequent, honest temperature monitoring and moisture control emerged as key safeguards, each improvement discussed and revisited at cross-departmental meetings.

    Customer-driven improvement drives most of our key innovations. After a global chemical manufacturer highlighted issues dissolving early batches in non-polar solvents, we ran a series of internal experiments, tweaking crystallization conditions and modifying solvent washes. The outcome: an easier-to-use product that eliminated several grams of waste per reaction vessel, cutting disposal fees and downtime. In direct contrast to brokered product models, we can make these tweaks rapidly, closing feedback loops as quickly as customers can share their pain points.

    No Substitutes for Experience: People and Data Make the Difference

    Every drum of Benzyloxy Sulfonyl Chloride undergoes a chain of hands-on inspections before shipment. From frontline operators processing raw acid stock, to chemists overseeing final QC checks, every employee knows their piece of the puzzle affects both safety and a customer’s scientific momentum. Unlike mass brokers or online catalogues, the faces behind our product have logged thousands of hours on the factory floor and in application labs. They field direct calls about lot records, troubleshoot pallet shipments, and describe, in practical terms, what to expect from each batch.

    Data-driven confidence grows with each successful shipment, and our records run deeper than spreadsheet inventories. We keep decades of impurity analyses on file, letting customers compare historical data for manufacturing validation. Third-party auditors routinely confirm that our analytical instrumentation and procedure documentation meet or exceed industry norms. This culture of openness, born out of both necessity and pride, anchors the dependability of every order.

    Looking Forward: Meeting Evolving Needs Without Sacrificing Standards

    Over the years, end-user requirements for Benzyloxy Sulfonyl Chloride have grown more challenging. Regulatory compliance, increased purity thresholds, and specialized safety documentation all shape the modern chemical landscape. Our response: continuous investment in spectroscopic equipment, tighter analytical turnarounds, and advanced containment controls for both the product and our staff. Every updated hazard label, new analytical certificate, and floor procedure builds on thousands of actual production runs, not just textbook theory.

    Strategic collaboration with universities and custom synthesis laboratories helps us spot future trends and adapt proactively. We arrange for trial samples, offer expert technical support, and collect field data on emerging synthetic methodologies using BZOSC-0402. This two-way conversation ensures our specifications never stagnate. By bridging the gap between hands-on chemical manufacturing and targeted downstream application, we future-proof both our workforce and our product. Rather than rely on standard catalog listings, we build every specification and quality assurance step from the reality of the bench—not from assumption or marketing analogies.

    What Our Direct Manufacturing Brings to the Table

    By holding responsibility for Benzyloxy Sulfonyl Chloride from raw materials to final packing, we respond far beyond a delivery confirmation. We anticipate changes, adapt to feedback, and provide a technical trail for every request. Whether supporting a new agrochemical development, a pharma intermediate, or a custom protection strategy for a specialty aromatic amine, we apply both knowledge and process understanding built over years of direct production. The difference shows not just in product performance, but in the peace of mind for the innovators counting on us for their next breakthrough.