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3H-1,2-Benzodithiol-3-One-1,1-Dioxide

    • Product Name 3H-1,2-Benzodithiol-3-One-1,1-Dioxide
    • Alias Dithiane dioxide
    • Einecs 212-673-8
    • 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

    193454

    Iupac Name 3H-1,2-benzodithiol-3-one 1,1-dioxide
    Molecular Formula C6H4O3S2
    Molar Mass 188.23 g/mol
    Cas Number 2581-91-3
    Appearance White to off-white crystalline powder
    Melting Point 205-209 °C
    Solubility In Water Slightly soluble
    Boiling Point Decomposes before boiling
    Density 1.65 g/cm3 (approximate)
    Chemical Class Benzodithiole
    Synonyms Benzothiazine dioxide, 1,2-Benzodithiol-3-one-1,1-dioxide
    Pubchem Cid 17205

    As an accredited 3H-1,2-Benzodithiol-3-One-1,1-Dioxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle, 25 grams, with tamper-evident screw cap; white label displays chemical name, CAS number, hazard pictograms, and handling instructions.
    Shipping 3H-1,2-Benzodithiol-3-one-1,1-dioxide should be shipped in tightly sealed containers, protected from light and moisture. It must comply with all relevant chemical transport regulations, including labeling and documentation. Ship at ambient temperature unless specified otherwise, and ensure packaging prevents leaks or spills during transit. Handle as a potentially hazardous material.
    Storage Store **3H-1,2-Benzodithiol-3-one-1,1-dioxide** in a tightly closed container in a cool, dry, well-ventilated area, away from direct sunlight and incompatible substances like strong oxidizing or reducing agents. Keep away from moisture and sources of ignition. Use secondary containment if needed, and ensure that only trained personnel handle the storage. Label the container clearly with appropriate hazard information.
    Application of 3H-1,2-Benzodithiol-3-One-1,1-Dioxide

    Applications of 3H-1,2-Benzodithiol-3-One-1,1-Dioxide in Industrial Manufacturing

    As a direct manufacturer of 3H-1,2-Benzodithiol-3-One-1,1-Dioxide, we supply this specialty intermediate to well-established industrial supply chains. The following application sections outline real downstream markets with specific technical, regulatory, and production detail to support procurement and process integration.

    1. Pharmaceutical Sulfur-Containing Intermediate Synthesis

    Leading pharmaceutical manufacturers utilize 3H-1,2-Benzodithiol-3-One-1,1-Dioxide as a core intermediate for building advanced heterocyclic scaffolds that contain sulfur groups. These functional motifs are prevalent in active pharmaceutical ingredients targeting antimicrobial, anti-inflammatory, and cardiovascular therapies. Process chemists rely on accurate purity, particle size control, and traceability throughout multi-step synthesis and scale-up. Downstream formulation teams further process these intermediates under controlled conditions as required by regulatory authorities.

    Industry compliance standards

    • ICH Q7 GMP for Active Pharmaceutical Ingredients
    • 21 CFR Part 210/211: US FDA cGMP for drug manufacturing
    • EU GMP Guide Part II
    • EMEA/CHMP/QWP/496/96: European Pharmacopoeia reference

    Typical usage ratio

    • Batch charges typically 0.5–2.5 molar equivalents relative to primary amines or halide starting material; process R&D tailors loading by route and target impurity limits

    Downstream process integration

    • Direct introduction during nucleophilic substitution, cyclization, or coupling steps in intermediate stage synthesis; loaded to reactors after pre-drying

    Final product types

    • Active pharmaceutical ingredients (APIs) with benzodithiolone-derived moieties
    • Specialty medicinal intermediates for further synthetic transformation
    • Bulk intermediates for contract manufacturing organizations (CMOs)
    • Sulfur-containing solid oral and injectable drugs

    2. Specialty Dyes and Pigment Manufacturing

    3H-1,2-Benzodithiol-3-One-1,1-Dioxide functions as a sulfur atom donor and building block in the synthesis of complex organic dyes, particularly those used for textile, leather, and plastic coloration. Compound chemists select this precursor for its ability to drive thionation reactions, contributing distinct chromophore features in high-performance pigments. Refinement of synthesis steps and color quality requires raw material traceability and adherence to environmental controls as outlined by regional chemical regulations.

    Industry compliance standards

    • REACH (EC) No 1907/2006: Substance Registration for Pigment Raw Materials
    • ZDHC MRSL v3.1: Zero Discharge of Hazardous Chemicals List
    • EN 71-3:2019 Safety for toys (colorant migration limits)
    • ISO 9001:2015 Quality Management for pigment production

    Typical usage ratio

    • 0.2–1.5 weight % relative to total dye formulation; ratio depends on desired chromaticity and color intensity, adjusted after pilot batch trials

    Downstream process integration

    • Stage-wise integration during thionation of precursor molecules, either in batch or semi-continuous coloration formulation lines

    Final product types

    • Sulfur-based dye intermediates for textiles
    • High-purity organic pigments for specialty coatings and plastics
    • Special effect dyes for printing inks
    • Light-fast colorants for leather finishing

    3. Polymer Additives: Sulfur Crosslinking Agents

    Compounders and manufacturers in the high-performance polymer sector incorporate 3H-1,2-Benzodithiol-3-One-1,1-Dioxide as a crosslinking donor to enhance sulfur bridge density in engineered plastics. The compound reacts with olefinic and aromatic systems to increase material durability. Production lines demand tightly controlled feedstock to ensure batch consistency, while quality teams monitor residual sulfur compounds to stay within allowed global migration standards for polymers in sensitive applications.

    Industry compliance standards

    • EU Directive 2011/65/EU (RoHS 2) Restrictions for polymers in electrical and electronic equipment
    • UL 94: Standard for Safety of Flammability of Plastic Materials
    • FDA 21 CFR 177.2600: Rubber articles intended for repeated use
    • ISO 10993-5: Biological evaluation of medical device materials (cytotoxicity)

    Typical usage ratio

    • 1–7 phr (parts per hundred resin); formulation dependent on polymer grade and target physical properties, continuously monitored by rheological analysis

    Downstream process integration

    • Introduction in melt blending, twin-screw extrusion, or solution mixing as a crosslinking component during compound preparation; carefully metered to avoid overtreatment

    Final product types

    • Crosslinked thermoplastic elastomers for automotive and consumer goods
    • High-durability rubber seals and gaskets
    • Specialty cable insulation with enhanced sulfur crosslinks
    • Bio-compatible polymer matrix materials (subject to cytotoxicity testing)

    4. Agrochemical Sulfonamide Intermediate Production

    Producers of crop protection molecules employ 3H-1,2-Benzodithiol-3-One-1,1-Dioxide within the synthesis of sulfonamide and thiourea derivatives, which serve as active components in fungicides and insecticides. Material enters agrochemical synthesis routes requiring compliance with both local pesticide regulations and global environmental control protocols. Manufacturing batches depend on feedstock traceability to meet agrochemical registration and residue control obligations.

    Industry compliance standards

    • FAO/WHO Joint Meeting on Pesticide Specifications (JMPS)
    • Regulation (EC) No 1107/2009: Placing of Plant Protection Products on the Market (EU)
    • GB 2763-2021: Chinese national standard for pesticide residue limits
    • ISO 9001:2015 certified agrochemical manufacturing systems

    Typical usage ratio

    • 0.3–1.2 equivalents relative to amine or isocyanate partners in stage synthesis; varies based on crop protection product design requirements and regulatory studies

    Downstream process integration

    • Added during key sulfonamide coupling step, often after purification of previous intermediate; utilized in nitrogen and sulfur atom transfer reactions under controlled pH

    Final product types

    • Sulfonamide-based systemic fungicides
    • Thiourea pesticides for seed treatment
    • Intermediate stock solutions for agrochemical blend formulations
    • Precursor substances for registered crop protection agents

    5. Synthesis of Electronic Chemicals: Photoresist Additives

    Manufacturers of high-end electronic chemicals use 3H-1,2-Benzodithiol-3-One-1,1-Dioxide as a photoactive additive or intermediate for the fabrication of advanced photoresist formulations. The material introduces targeted electron-donating and absorption properties, essential for semiconductor lithography below 90 nm. Consistent reactivity profiles and ultra-low trace metal content are critical for wafer processing environments as governed by global semiconductor supply chain approvals.

    Industry compliance standards

    • SEMI C93: Specification for Photoresist Chemicals Used in Semiconductor Manufacturing
    • IATF 16949:2016 for electronics component supply chain
    • IEC 62474: Material Declaration for Electronic Products
    • ISO 14644-1: Classification of Air Cleanliness (cleanroom manufacturing)

    Typical usage ratio

    • 0.1–0.8 weight % in final photoresist composition; lab trials determine the optimal dose for target wavelength absorption and pattern resolution

    Downstream process integration

    • Dosage occurs directly in photoresist mixing tanks prior to solvent and resin addition; in-line QC confirms batch-to-batch uniformity through spectroscopic analysis

    Final product types

    • Photoresist chemicals for advanced IC wafer fabrication
    • Microelectronics imaging materials
    • Semiconductor substrate coating intermediates
    • UV-patterned circuit board resists
    Free Quote

    Competitive 3H-1,2-Benzodithiol-3-One-1,1-Dioxide prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    3H-1,2-Benzodithiol-3-One-1,1-Dioxide: Manufacturing Perspective on a Key Synthetic Intermediate

    Introducing Our 3H-1,2-Benzodithiol-3-One-1,1-Dioxide

    Every batch of 3H-1,2-Benzodithiol-3-One-1,1-Dioxide that we manufacture speaks to years of experience in heterocyclic chemistry and an understanding of its unique role in specialty synthesis. We don’t look at this compound as just another catalog item. Instead, our approach is to guide its production with careful control at every step, since the final outcome directly affects our partners downstream. This compound, sometimes also referred to as saccharin S-oxide, hardly ever shows up in bulk catalogs. It tends to be requested by customers who understand its significance, particularly for pharmaceutical intermediates, fine chemical building blocks, or certain electrochemical applications.

    Our production cycle begins with a deep focus on raw material quality because even slight impurity in the starting benzenethiol chain leads to unmanageable side reactions during cyclization. Process chemists on our team worked through dozens of iterations on sulfonation and subsequent oxidation steps to perfect a method that yields a clean product, suitable for the high standards expected in synthesis. There is no shortcut to purity or consistent lot-to-lot behavior here. Analytical labs confirm batch identity and check for key trace contaminants—not just for regulatory reasons, but because the synthetic routes clients rely on often hinge on these details.

    Purity, Form, and Stability: Specifications That Count

    Unlike more forgiving commodity chemicals, 3H-1,2-Benzodithiol-3-One-1,1-Dioxide carries a set of physical and chemical behaviors that present real-world challenges. In our lab, the staff pays close attention to water content, because the product’s stability can shift in high humidity. Storage protocols get developed by the hands of people who have dealt with spoiled batches. The model we focus on most measures out at a typical purity above 99%, with loss on drying tightly controlled—measured because end users notice if the product takes up more moisture than it should. Our methods of packing respond to actual user feedback, opting for containers that resist both light and moisture. Some users will request crystalline, while others look for a fine powder—the feedback from each informs adjustments at the drying and milling stages.

    Across our product line, few other compounds test our staff’s skills at the bench as regularly as this one. Trace metal analysis, for example, can be a decisive point for manufacturers further along the chain. Any phosphate or chloride introduced must be tracked, not just recorded for compliance reasons, but because we know that lingering residues can catalyze unwanted transformations if the product gets used as a core intermediate. We regularly ship samples to clients to validate compatibility, rather than relying on stock documentation.

    Why This Compound Stands Apart

    People often ask what separates our 3H-1,2-Benzodithiol-3-One-1,1-Dioxide from more common analogs, or why this molecule stands out in practical synthesis. It comes down to three main issues: reactivity, purity profile, and application-specific compatibility. Benzodithiole frameworks generally resist straightforward substitutions, introducing selectivity into coupling and cyclization steps. Our experience suggests that minor shifts in impurity profiles, especially from poorly controlled oxidations or ring closure glitches, often result in downstream failures. What goes unnoticed in mass-market alternatives becomes obvious under strict standards, such as those found in pharmaceutical R&D trials or fine chemical assembly lines.

    Clients using this compound to construct advanced pharmaceuticals want their raw materials to behave consistently from batch to batch. Half a percent shift in purity or a trace chemical fingerprint can derail weeks of development. Our process chemists are tasked with examining crystallinity, polymorphic forms, and even how subtle differences in hydration play out in the solubility profile. We invest in in-house analytics not out of obligation, but because it saves time and costs for both supplier and client.

    Understanding End Uses: More Than Just Raw Supply

    Over time, we’ve come to know the range of sectors relying on 3H-1,2-Benzodithiol-3-One-1,1-Dioxide. Pharmaceutical companies use it in the synthesis of certain ring systems; agrochemical researchers see it as a key intermediate in actives and stabilizing agents. In electronics, its high stability under redox environments makes it useful in specialized batteries or as a template for sensor development. Many synthetic teams need only small amounts for pilot reactions. Each of these sectors brings a different set of requirements. The rigorous demands of drug synthesis lead our team to focus on eliminating potential genotoxin residues; in contrast, electronics manufacturers watch for particle size and residual solvent levels.

    Because we act as the producer, not an intermediary, dialogue flows easily between our staff and partners when a tweak is needed. The feedback from someone developing a new device or drug filters directly to the process chemist on our side. Over the years, these exchanges pushed us to develop new crystallization techniques or to add extra controls related to particle size distribution, especially for electrochemical applications. Reactions sometimes call for a homogenous solution; in others, a slower dissolution profile is desired. Each adjustment requires knowledge gained from actual runs, not just formula sheets.

    Challenges Unique to Manufacturing

    Manufacturing 3H-1,2-Benzodithiol-3-One-1,1-Dioxide at scale presents no shortage of challenges. The process can generate sulfur oxides, which demand both worker protection and precise ventilation. We employ reaction vessels made with corrosion-resistant materials, as batch failures often trace back to unnoticed reactor wear. Operators perform routine checks in addition to scheduled maintenance, knowing from experience that mechanical issues rarely announce themselves in advance. Our in-house environmental controls grew out of trial and error—scrubbers and neutralization stations had to be custom-built to contain specific byproducts rather than relying solely on out-of-the-box solutions.

    Temperature control during cyclization and oxidation steps remains a sensitive point. Runaway reactions do not just ruin batches—they risk employee safety. Our operators use real-time monitoring developed from incidents where a five-degree shift led to polymerization or degradation. Batch records serve as troubleshooting tools, tracking not only successful outcomes but also failed attempts. These behind-the-scenes adjustments never make it into marketing brochures, but anyone who has been in the plant knows how critical they are to consistent delivery.

    Standing Out from Commodity Alternatives

    The market carries a number of benzodithiol derivatives, with some traders offering “equivalent” grades. The difference becomes clear when end users attempt to replicate sensitive reactions. Reports periodically come back to our technical team of failed crystallizations, strange colorations, or unexplained reactivity when non-specialized sources supply the raw material. Our technical staff have visited customers to troubleshoot such cases, tracing issues to differences in impurity spectra, trace solvent entrapment, or improper processing. Over time, this experience reveals that supplying a reliable molecule means forging a partnership based on dialogue, not just shipment. Our scale-up staff consult directly with receiving labs, sometimes developing joint protocols.

    We focus on reproducibility, not just high numbers in purity certificates. Unlike distributors, who simply list specifications, our personnel understand how every minor variable affects synthetic outcomes. For those building new routes in medicinal chemistry, our support includes more than just signed analysis sheets. R&D teams have called us for support on solubility issues, thermal sensitivity, and even scale-up bottlenecks. The insight our process operators bring is not theoretical or outsourced—it comes from hands-on troubleshooting that avoids repeating errors.

    Practical Insights for Synthetic Strategy

    Practitioners working at the bench level appreciate the role of this compound as a lynchpin in sulfur-heterocycle synthetic strategy. We’ve seen first-hand how skips in process can introduce instability, drop yields, or add major impurity burdens. Lessons learned at our plant prompted changes, like slowing the addition of oxidant to limit exotherms, or introducing double filtration to capture insoluble particles that don’t dissolve in downstream solvents. The smallest insight—such as which drying temperature avoids caking yet preserves chemical integrity—becomes part of our institutional memory.

    Clients focused on green chemistry often ask us about solvent use and downstream waste profiles. We responded by optimizing reaction conditions to minimize chlorinated solvents. We treat waste streams on-site, with team members cross-checking effluent before release. Any process change proposed by our R&D chemists must show improvements in both yield and environmental footprint. This scrutiny roots itself not in abstract policy, but because our staff live in the communities surrounding our site.

    Building Trust Through Experience

    Every decision made on the production floor funnels directly into customer experience. Before shipping, trained personnel inspect not only packaging but documentation—especially the traceability of every ingredient. This internal discipline didn’t emerge overnight. Years of learning from both successes and unexpected setbacks honed our systems. On more than one occasion, delayed deliveries traced to our refusal to release a lot that failed internal tests. Partners trust us with their critical molecules because we take these steps, even if it complicates logistics.

    Clients have direct access to our technical team. In some cases, we’ve even assisted with regulatory filings, providing trace analytical data to support CMC submissions or custom reports for toxicologists. Our staff track batch histories, monitor for trending deviations, and push information proactively to partners, rather than holding back until questions arise. The connection forged here is built on understanding the potential impact of a single deviation.

    Toward Continuous Improvement

    We view each lot as an opportunity to improve, not just maintain the status quo. By listening to the feedback of researchers, formulation scientists, and engineers, we continue refining our process. In the future, we look toward controlled microreactor synthesis to further tighten parameters and reduce unwanted byproducts. In parallel, analytic investments in mass spectrometry and thermal gravimetric analysis give us new eyes into batch behavior. Collaborations with academic labs extend our knowledge, bringing process improvements that traditional methods might overlook.

    Our teams champion the notion that high performance comes from cumulative, small improvements. A routine modification, like rotating shifts for reactor monitoring or installing secondary particle sieves, often produces outsized gains in batch consistency. Even incremental upgrades make measurable impacts, especially in specialized products. The old approach—avoiding change to stick with “what worked before”—has no place here. Every lesson gets shared across teams, turning individual experience into collective expertise.

    Looking Ahead: Commitment to Reliability and Innovation

    Manufacturing 3H-1,2-Benzodithiol-3-One-1,1-Dioxide isn’t just about chemistry; it’s about accountability and responsiveness to the people who rely on dependable product supply. This compound’s position in advanced synthesis means we carry real responsibility when producing and delivering it. Our staff keep their focus on reliability, traceability, and technical dialogue with the chemists and engineers who shape the next wave of innovator products. Challenges, once seen as obstacles, become opportunities for technical exchange and joint problem-solving.

    Our outlook for 3H-1,2-Benzodithiol-3-One-1,1-Dioxide remains rooted in practical experience, data-driven improvements, and collaborative growth. By viewing each lot as a chance to advance—not just meet—the requirements of our partners, we continue to place quality and technical transparency ahead of pure volume. The ongoing evolution of specialty chemicals production, informed by firsthand knowledge, ensures this compound will remain a cornerstone for those seeking reliability in every step of their synthetic journey.