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2-Mercaptothiazoline

    • Product Name 2-Mercaptothiazoline
    • Alias 2-Mercapto-1,3-thiazoline
    • Einecs 202-496-6
    • 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

    539315

    Cas Number 1908-87-8
    Molecular Formula C3H5NS2
    Molecular Weight 119.21
    Appearance White to slightly yellow crystalline powder
    Melting Point 117-120°C
    Boiling Point 240°C (decomposes)
    Solubility In Water Slightly soluble
    Density 1.37 g/cm3
    Odor Characteristic, unpleasant
    Storage Conditions Store in a cool, dry, well-ventilated place
    Synonyms 2-Mercapto-1,3-thiazoline, 2-Mercapto-1,3-thiazoline
    Chemical Structure Five-membered ring containing sulfur and nitrogen

    As an accredited 2-Mercaptothiazoline factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 2-Mercaptothiazoline is packaged in a 500g sealed amber glass bottle with a secure screw cap and clear hazard labeling.
    Shipping 2-Mercaptothiazoline is shipped in tightly sealed containers, clearly labeled and compliant with hazardous material regulations. It should be kept away from moisture, heat, and incompatible substances. During transit, proper safety measures, such as secondary containment and appropriate cushioning, are used to prevent leaks, spills, or accidental exposure. Handle with care upon receipt.
    Storage 2-Mercaptothiazoline should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizers. Keep the chemical away from moisture, direct sunlight, and heat. Proper labeling and secondary containment are essential to avoid accidental exposure, spills, or contamination.
    Application of 2-Mercaptothiazoline

    Applications of 2-Mercaptothiazoline in Industrial Manufacturing

    As a leading manufacturer of 2-Mercaptothiazoline, we deliver consistent quality for specialized industrial applications. This raw material serves as a key functional additive in several process-intensive industries, providing performance benefits through specific integration points and adherence to rigorous compliance standards.

    1. Vulcanization Accelerator in Rubber Production

    2-Mercaptothiazoline functions as a secondary accelerator in the vulcanization of natural and synthetic rubber. Tire and industrial rubber producers add it to accelerate cross-linking, improving tensile strength, abrasion resistance, and elasticity. The additive primarily enters during mixing with other accelerators such as MBT and sulfur, especially in systems requiring moderate scorch safety and fast curing cycles. It suits automotive tires, conveyor belts, seals, and technical rubber due to low nitrosamine risk and compatibility with NBR, SBR, and EPDM polymers. Quality control addresses dispersibility and residue limits.

    Industry compliance standards

    • ISO 9001:2015 (Quality Management Systems for manufacturing)
    • ISO 6624-2 (International standards for vulcanized rubber compounds)
    • EU REACH Regulation (EC 1907/2006, substances of very high concern—SVHC screening)
    • US EPA TSCA Title VI (Control of hazardous chemicals in manufacturing)

    Typical usage ratio

    • 0.2%–1.0% by weight relative to total rubber compound
    • Exact loading depends on other accelerators, base polymer, and desired cure rate

    Downstream process integration

    • Pre-mix into vulcanizing package at compounding stage
    • Dispersed under high-shear mixing before curing step
    • Monitored for residue in final product by HPLC analysis

    Final product types

    • Automotive tires
    • Industrial hoses and gaskets
    • Conveyor and transmission belts
    • Technical molded rubber articles

    2. Corrosion Inhibitor for Industrial Water Treatment

    2-Mercaptothiazoline serves as an effective corrosion inhibitor primarily in closed-loop cooling water and boiler systems. Plant operators use it to protect steel and copper alloys from oxidative attack. It forms a monomolecular film on metal surfaces, limiting corrosion initiation during plant startup or idle periods. Chemical dosing occurs into make-up water or circuit reservoirs with real-time feedback from corrosion coupons and chemical oxygen demand (COD) testing. The additive meets safety and discharge limits, and users control levels to avoid interference with biocides or scaling inhibitors.

    Industry compliance standards

    • ASTM D1384 (Standard Test Method for Corrosion Tests in Engine Coolants)
    • EN 12167 (Industrial circulating water treatment standards)
    • Regulation (EU) 528/2012 (Biocidal Product Regulation—environmental impact assessment)
    • China GB/T 50050 (Standards for industrial water quality—water treatment agents)

    Typical usage ratio

    • 5–50 ppm active ingredient relative to total water volume
    • Dosage adjusts for water hardness, system metallurgy, and flow rate

    Downstream process integration

    • Continuous or batch dosing to main water loop
    • Automated monitoring by conductivity and inhibitor level sensors
    • Scaling and corrosion rate verification using corrosion coupons

    Final product types

    • Cooled process water for power plants
    • Circulating chillers and heat exchangers
    • Boiler feedwater circuits
    • Closed-loop HVAC water systems

    3. Intermediate for Agrochemical Synthesis

    2-Mercaptothiazoline acts as a key heterocyclic intermediate in the synthesis of agricultural fungicides and insecticides. Agrochemical manufacturers incorporate it to build thiazole-based active ingredients with enhanced sulfur content and field persistence. The compound integrates early in multi-step synthesis, enabling thiol-driven coupling reactions or cyclization. Process chemists maintain purity thresholds and handle waste streams according to crop protection regulations. The material affects final product registration, with automated GC and NMR methods controlling trace impurity carryover.

    Industry compliance standards

    • FAO/WHO JMPR Guidelines (Pesticide specification and evaluation—active substance purity)
    • US EPA 40 CFR Part 174 (Pesticide registration and proper labeling)
    • China GB 2763 (National Maximum Residue Levels—agrochemicals)
    • ISO 9001:2015 (Process and batch record control in chemical synthesis)

    Typical usage ratio

    • Stoichiometric amount based on final active compound yield
    • Typically 0.5–1.5 molar equivalents in step reactions, adjusted for target molecule

    Downstream process integration

    • Added in sealed reactors during condensation or cyclization stages
    • Purified by distillation and chromatography before downstream derivatization
    • Intermediate isolation by solvent extraction or crystallization before further processing

    Final product types

    • Fungicidal thiazole derivatives for cereal crops
    • Insecticidal formulations for horticulture
    • Seed coating actives
    • Pesticide formulations for public health

    4. Precursor in Dye and Pigment Manufacture

    2-Mercaptothiazoline provides key sulfur and nitrogen motifs for specialty dye and pigment synthesis, particularly in the automotive and textile industries. Colorant manufacturers use it for building complex thiazole rings that deliver shade intensity and chemical stability. The additive enters condensation or coupling reactions, often under strictly monitored temperature and pH conditions to maximize yield and minimize side reactions. Quality assurance requires regular spectrophotometric analysis for color consistency and residual contaminant control. Waste handling aligns with hazardous chemical discharge rules.

    Industry compliance standards

    • OEKO-TEX Standard 100 (Textile chemical safety)
    • EN 12877-1 (Pigment quality and migration standards—plastics)
    • REACH Annex XVII (Restriction on specific chemical uses in dyes and pigments)
    • ISO 787 series (General test methods for pigments and extenders)

    Typical usage ratio

    • 0.5–2.5% by weight of total batch during dye intermediate synthesis
    • Actual dosage tailored to chromophore development and pigment load requirement

    Downstream process integration

    • Charged to synthesis reactor at the condensation step
    • May require stepwise nucleophilic addition under alkaline condition
    • Batch verified by HPLC for residual 2-mercaptothiazoline

    Final product types

    • Sulfur-containing azo dyes for textiles
    • Thiazoline-based pigments for automotive paints
    • Color fast textile printing pastes
    • Plastisol and solvent-based industrial inks
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    Certification & Compliance
    More Introduction

    2-Mercaptothiazoline: Our Commitment to Quality and Application-Driven Chemistry

    Real Experience Brings Real Results

    Every day, chemical operators load, measure, and control temperatures in our plant with 2-Mercaptothiazoline production running not just as a formula, but a process learned from decades of batch and continuous improvement. Our team still refers to older logs to check subtle variations: the raw material color, the way the solution clears, and even the hint of a slightly different odor reminds every veteran what separates dependable product from those samples that get flagged for off-specs.

    As a manufacturer, our job doesn’t end at purity numbers or a certificate of analysis. Years supplying polymer plants, mining operations, and synthetic rubber converters have taught us a truth: 2-Mercaptothiazoline's value comes alive in the field. Lab data only tells half the story. Its correct function depends on small, but critical, process details. Our process control takes extra steps to eliminate side impurities, tightening crystallization time, and minimizing trace byproducts, reducing headache for anyone downstream.

    Specifications: Not Just a Number

    Model: 2-Mercaptothiazoline, sometimes known as MBT or 2-Mercapto-1,3-thiazoline, flows through our reactors to meet high analytical standards. Experienced operators know that a purity near or above 98% serves as the baseline. This crisp benchmark gets monitored at every stage, backed by actual customer results. Staff testing each batch don’t simply measure for purity—they track free acid, residual water, and color shade, since tire plants and flotation agents both care about these details for very different reasons.

    Particle size matters too, though few specifications mention it. Since some customers run fine nozzles or require powder with specific handling properties, we pay attention from milling to post-drying steps. Moisture content sometimes trips up less-experienced handlers, especially in humid environments. We add extra drying and close monitoring in our packing areas, making sure bags deliver dry, easy-to-handle crystalline material—no unexpected clumping after a few months at a warehouse.

    Smell and appearance tell what chemical analysis can’t: off-color or a sharp, lingering sulfurous note often means something missed its mark in the process. Operators with years of sensory training sometimes pick up minor plant issues before a batch even hits the lab. Our production managers keep close records and take corrections seriously, since a mishandled lot can slow an entire customer’s line—even if the standard paperwork says otherwise.

    Real-World Uses: Beyond the Lab

    2-Mercaptothiazoline takes on a dozen different jobs, depending on who’s using it. Often, rubber compounding lines use it as a vulcanization accelerator. Here, success depends not on abstract purity, but on how it releases sulfur, how fast, and when. Our manufacturing pays attention to fine residues and grain size, allowing precise feed—meaning tires, hoses, and industrial rubber can form safely, cutting losses and reducing rejects. Rubber plants want a smooth, predictable curing reaction; so do we, when tuning our last filtration step.

    Flotation applications tell a different story. At copper or gold processing sites, 2-Mercaptothiazoline acts as a collector. Low iron contamination keeps efficiency high, so customers avoid extra dosing and control costs. Our plant operators learned this lesson from first-hand visits: miners rely on clarity and color as quick checks, since even slightly off-spec material foams differently and affects yields. Customers—sometimes thousands of kilometers away—can see the impact of minor manufacturing deviations in daily recovery rates.

    Water treatment plants find another use for 2-Mercaptothiazoline, yet the concern here turns to trace heavy metals and thermal degradation. If a batch absorbs environmental moisture or there’s a change in crystal structure, it shifts its scavenging ability. Our experience with plant design lets us address this, delivering tighter finished product lots and batch uniformity, not just broad specifications. Customers come back because their systems run smoother, and less downtime means saved operating budgets over the long haul.

    A few researchers and specialty chemical developers employ 2-Mercaptothiazoline in corrosion inhibition or synthetic intermediate roles. They want particular crystalline forms or low ash profiles. Decades making specialized chemicals taught us not to brush aside these requests as mere tweaks—these often solve immediate customer issues. Our records trace tweaks back to root causes, so modifications in agitation speed or temperature profile meet tighter requirements.

    Differences from Look-Alike Chemicals

    2-Mercaptobenzothiazole and 2-Mercaptothiazoline sound alike, but they aren’t interchangeable. The thiazoline ring in 2-Mercaptothiazoline gives faster sulfur release, particularly important for acceleration in certain polymer systems where cure rates can make or break a production schedule. MBT—while popular—carries a bulky benzene ring, changing its reactivity and regulatory standing in applications with restricted aromatic content.

    Our teams have supplied both, and customers often want guidance. Mixing these chemicals, or substituting one for the other, risks unpredictable results. Several partners learned this during scale-up, finding that process water content and different accelerator types interact in complicated ways—leading to lost batches and missed deliveries. After years supporting technical teams, we advise clearly: Process engineers need to know the specific reactivity and impurity profile before switching or blending sulfur accelerators.

    With thiazoline-based products, the crystalline form brings better solubility for many users. High-purity batches offer improved shelf-life and better batch-to-batch reproducibility, important when small deviations can ripple into major downstream issues. Our production line enjoys tighter control—both due to practiced staff and layout built around years of operational improvements. It’s not a matter of simply following a standard recipe; it’s the result of continuous work, daily vigilance, and learning from both successes and occasional near-misses.

    Careful Manufacturing for a Demanding Market

    Big differences emerge from small changes. Over years supplying global chemical manufacturers, we’ve seen unexpected issues: batches with similar certificates perform differently due to slight differences in trace contaminants or crystalline phases. Companies new to handling 2-Mercaptothiazoline often focus on theoretical purity, missing the practical factors that show up in real production. Our company learned to work closely with customer technical staff, walking lines and reviewing everything from handling practices to storage conditions.

    For example, humidity and storage methods can alter product performance before a bag even reaches a blending line. A batch left exposed absorbs moisture, causing caking and feeding problems in automated systems. We improved our packaging—triple-bagging high-value lots, using moisture indicators, and working with warehouse teams. This reduced both on-site incidents and claims, but more importantly gave customers predictably stable performance.

    Tighter regulations have raised the bar. Many end-users care not just about product performance, but also environmental impact and safe handling. Subtle changes in sulfur or nitrogen byproduct levels may affect everything from occupational exposure limits to long-term waste management. Our experience adapting to new regulations makes us quick to update purification processes and trace impurity monitoring, openly sharing limits with our engineering partners. Working across industries, we’ve embraced this transparency as a way to build trust, knowing a new rule or unknown contaminant can disrupt established supply chains overnight.

    Process Challenges: Learning by Doing

    Manufacturing 2-Mercaptothiazoline is rarely straightforward. High temperatures, exothermic reactions, and variable raw materials all demand attentive, knowledgeable staff. It’s not uncommon for a single operator’s experience to mean the difference between a smooth batch and a rework cycle. Over the years, we’ve kept a strong track record through staff retention, hands-on training, and careful review of both routine and unusual events in our plant’s history.

    Fine-tuning takes more than equipment upgrades; it calls for adaptability. A sudden shift in raw material quality, often driven by supplier changes, forces recalibration. Instead of relying on assumption, we keep small retained samples to spot-check for subtle differences. Sometimes, the answer lies not in new machinery but in returning to detailed operator notes—someone’s decades-old observation about reaction rates under certain ambient conditions can sometimes resolve issues faster than external consultants.

    We operate in markets that tolerate little downtime. Every hour counts when an industrial tire line or mine starts a shutdown due to delays. Our line managers work closely with logistics and truck drivers to prevent late deliveries and ensure that material lands where it’s needed, on time and in the right condition. We know the value of clear, honest communication. If a truck faces a customs issue or a storm threatens a shipment, our staff update clients directly—not through layers of third-party resellers.

    Customer Collaboration: A Two-Way Street

    Long-term customers expect more than standard product. They want problem-solving partners who understand the unique challenges on their site. We stay engaged, fielding questions about feed rates, unexpected reactions, or supply risk. Sometimes, the most valuable support comes from inviting customers to walk our production floor, seeing not just what we do, but how and why. Open process reviews build confidence and let them offer feedback that drives genuine improvements.

    When new applications arise, like adapting 2-Mercaptothiazoline blends for custom polymer research, we put lab teams and plant engineers side-by-side. In-person discussions resolve questions faster than dozens of emails or generic spec sheets. If a client needs tighter particle size or adjusted melting range, our operators run test lots, document outcomes, and follow up with tailored advice—not just a revised form letter or data sheet.

    Across time zones and climates, new regulations or changing market needs challenge us to stay agile. Our reputation depends on consistency and the willingness to learn—from raw materials procurement, through crystallization, drying, packing, and final delivery. This focus means less worry for customers, faster troubleshooting, and confidence that each lot meets practical as well as analytical expectations.

    Why Quality Really Matters

    Large-scale manufacturing rarely rewards shortcuts. Off-spec product, even if slight, forces customers to adjust process parameters, often at great time and cost. We’ve seen buyers try to save with cheaper, lower-spec material, only to face lost batches and expensive shutdowns. The expense of high-quality production is offset by saved time, peace of mind, and protection from surprise failures at critical moments.

    Initial investments in better process control, skilled staff, and attentive packing quickly pay for themselves when customer lines run trouble-free. Our team sees the benefit in real conversations, not just numbers on a page—when an end-user calls about a nuanced issue, practical advice from plant veterans makes the difference. Many of our strongest partnerships formed out of jointly solving production problems that neither side could have fixed alone.

    The Future: Adapting to Tomorrow’s Demands

    As markets shift and end-user expectations grow, 2-Mercaptothiazoline manufacturing must keep evolving. Research teams reach for purer, more consistent batches. Environmental and safety rules keep tightening. We’ve responded with new reactor controls, upgraded filtration, and carefully documented process steps that draw from real cases, not just theory. Our team regularly benchmarks alternative synthesis routes for both sustainability and safety, modifying plant procedures when better practices emerge.

    We listen closely as partners share changing product needs or face new regulatory challenges. Recently, a client in Latin America needed 2-Mercaptothiazoline with unusually low heavy metal content for a specialized electronic rubber application. Rather than offering the existing grade, our lab worked with customer engineers to adjust purification—rerunning parts of the batch and altering crystallization to achieve the exact outcome needed, not just something “good enough.” These changes might look small from the outside, but to the customer and end user, they mean business continuity and product performance.

    Responsible production fits into wider supply chain stability. This is more than box-ticking. Only experienced, attentive staff keep every step steady from ton-scale reactors to final export logistics. We see ourselves not as commodity suppliers, but as a group that brings value by translating real factory needs into successful, reliable chemistry. Each ton shipped reflects years of accumulated feedback, lessons, and ongoing improvement—an approach you won’t find from a trader just passing along boxes.

    Looking Ahead: Value Beyond Volume

    2-Mercaptothiazoline may never grab headlines, but for those running daily production and facing tough technical and regulatory pressures, it’s a crucial ingredient. With new fields from sustainable materials to advanced composites discovering its benefits, demand continues to expand. Skilled manufacturing means carefully refining every stage, listening to evolving customer needs, and always being ready for unexpected challenges in application, handling, or shipment.

    Our commitment rests not just on meeting the numbers, but on working closely with every partner, using years of hands-on manufacturing expertise. The chemistry may sound simple, but it takes real-world experience to deliver a product that works in tough conditions, meets tighter environmental expectations, and stands up to the scrutiny of users counting on it for their own innovation.