2-Toluenethiol

    • Product Name: 2-Toluenethiol
    • Alias: o-Methylthiophenol
    • Einecs: 202-439-7
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    316214

    Cas Number 137-07-5
    Molecular Formula C7H8S
    Molar Mass 124.20 g/mol
    Iupac Name 2-methylbenzenethiol
    Appearance Colorless to pale yellow liquid
    Boiling Point 198-200 °C
    Melting Point -32 °C
    Density 1.047 g/cm³
    Flash Point 77 °C
    Solubility In Water Insoluble
    Odor Strong, unpleasant, skunk-like
    Refractive Index 1.565

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

    Packing & Storage
    Packing 2-Toluenethiol is supplied in a 100 mL amber glass bottle, tightly sealed, with clear hazard labeling and safety handling instructions.
    Shipping 2-Toluenethiol is classified as a hazardous material for shipping due to its flammability and toxicity. It must be transported in tightly sealed, chemically compatible containers, with proper labeling and documentation per regulations. Shipping should comply with international and local guidelines, ensuring temperature control and ventilation to prevent leaks or exposure.
    Storage 2-Toluenethiol should be stored in a cool, dry, and well-ventilated area away from sources of ignition and incompatible materials, such as oxidizing agents and strong acids. Keep the container tightly closed, properly labeled, and protected from light. Store in a chemical storage cabinet designed for flammable or volatile substances, with appropriate safety precautions to prevent leaks or spills.
    Application of 2-Toluenethiol

    Applications of 2-Toluenethiol in Industrial Manufacturing

    2-Toluenethiol, as produced at our facility under strict quality protocols, serves specific and differentiated functions in several advanced industries. The following sections detail the major industrial application areas, with a focus on compliant practices, technical ratios, integration stages, and resulting end products.

    1. Agrochemical Intermediate Synthesis

    Manufacturers of crop protection agents rely on this compound during the multi-step production of certain herbicides, insecticides, and fungicides. Selected for its sulfur-containing functional group, it reacts as a building block in thioetherification and sulfonation processes. Its controlled use is essential for the reproducible synthesis of actives such as pesticides with targeted release and environmental stability profiles. Production sites prioritize traceability and purity to minimize by-product content and meet regulatory residue limits in finished products.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006
    • ISO 9001:2015 Quality Management System
    • CropLife International Stewardship Principles
    • EU Regulation 1107/2009 for Plant Protection Products

    Typical usage ratio

    • 0.5%—3.5% relative to final active mass; adjusted according to specific synthesis route and impurity control requirements.

    Downstream process integration

    • Introduced during nucleophilic substitution steps for thioether linkage formation.
    • Participates in catalytic coupling or alkylation with halogenated intermediates.
    • Added pre-crystallization to capture all sulfur source material and avoid waste.
    • Removed completely during extraction or purification after primary functionalization.

    Final product types

    • Pre-emergent herbicide technical concentrates
    • Selective insecticide active bases
    • Fungicidal seed treatment actives
    • Custom sulfur-modified agrochemicals for multinational brands

    2. Pharmaceutical API Intermediate Manufacture

    This compound plays a critical role as a thiol reagent or sulfur donor in the creation of active pharmaceutical ingredient (API) intermediates, supporting manufacturers focused on cardiovascular, anti-infective, and CNS drug classes. Its reactivity enables the precise introduction of sulfur atoms, often in key thio-functional groups needed for pharmacological activity or prodrug design. Documentation and full traceability are enforced to comply with industry-specific cGMP requirements and global pharmacopeia standards.

    Industry compliance standards

    • cGMP (ICH Q7 and US FDA 21 CFR 210/211)
    • European Pharmacopoeia (Ph. Eur.)
    • United States Pharmacopeia (USP)
    • Japanese Pharmacopoeia (JP)

    Typical usage ratio

    • 0.2—1.5 molar equivalents relative to the precursor in the batch; optimized based on impurity profile and target functional group yield.

    Downstream process integration

    • Dosed into closed vessels during sulfurization or alkylthiolation reactions.
    • Used for synthesis of thioethers or mercapto functional groups in API core structures.
    • Base or acid catalysis standard depending on route; stringent process control to minimize thiol odor transfer.
    • Fully removed ahead of purification by distillation or chromatography steps.

    Final product types

    • Sulfur-containing API intermediates
    • Building blocks for ACE inhibitors
    • Precursors for CNS drug scaffolds
    • Sulfur-substituted antivirals

    3. Organic Synthesis for Specialty Polymers

    Specialty polymer producers utilize this thiol compound in controllable amounts to introduce sulfur linkages or to cap and functionalize polymer chains during manufacturing. The compound's thiol group allows for crosslinking or end-group modification, enhancing mechanical properties, adhesion, and chemical resistance in advanced formulations such as rubber additives, caulks, and sealants. Process safety, trace purity, and material handling protocols meet the sector’s need for reproducibility and consistent end-use quality.

    Industry compliance standards

    • ISO 9001:2015 Quality Management System
    • ISO 14001:2015 Environmental Management System
    • ASTM D6048 (Thiols Testing)
    • RoHS Directive 2011/65/EU for restricted substances

    Typical usage ratio

    • 0.1—2% by weight in formulated batch; set as per degree of crosslinking or functional group density required.

    Downstream process integration

    • Dosed post-monomer addition as a chain transfer agent.
    • Initiated in continuous or batch reactors for end-group modification.
    • Integrated within closed handling systems to reduce volatility and emission.
    • Residuals assessed via GC for release before downstream product formulation.

    Final product types

    • Sulfur-crosslinked rubber components
    • Modified acrylic and epoxy adhesives
    • Sealant formulations for industrial construction
    • Elastomeric gaskets and molded parts

    4. Flavor and Fragrance Synthesis (Industrial Use Only)

    Within strictly regulated and industrial-grade settings, this raw material is pivotal for the synthesis of sulfur-derived aroma compounds. The pronounced reactivity and unique odor profile make it invaluable for developing controlled quantities of thioether- and thiol-based flavor & fragrance intermediates used in non-food, non-cosmetic applications like industrial deodorants and animal repellent products. Usage remains tightly restricted and monitored due to intense sensory attributes and occupational exposure limits.

    Industry compliance standards

    • IFRA Code of Practice (for industrial/technical applications only)
    • Occupational Exposure Standards (OSHA/NIOSH)
    • Hazardous Chemicals Control (GHG and VOC limits per facility location)
    • ISO 45001:2018 Occupational Health and Safety

    Typical usage ratio

    • 0.01—0.3% in industrial aroma intermediate synthesis; set according to target sulfur content and olfactory impact assessment.

    Downstream process integration

    • Enters early-stage alkylation reactions to form signature thiol and sulfide aroma compounds.
    • Added during batch or semi-batch synthesis, under ventilated conditions.
    • Removal and neutralization managed via activated carbon filtration before bottling.
    • Analytical QC testing for sulfur compound quantification in every lot.

    Final product types

    • Non-food, industrial fragrance intermediates
    • Odor-masking agents for technical deodorants
    • Animal repellent formulations
    • Sulfur-based industrial odorants

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    Certification & Compliance
    More Introduction

    2-Toluenethiol: A Practical Approach to Specialty Production

    Introduction from the Manufacturer’s Perspective

    Every batch of 2-toluenethiol carries the mark of direct hands-on synthesis. As the original manufacturer, we know not just its chemical structure—methylbenzene with a thiol group at the ortho position—but the practical realities of turning raw feedstocks into a consistent, high-purity product. Our commitment does not stem from trading or distributing someone else’s goods. We live the process, from ingredient sourcing through quality control, seeing firsthand how controlled conditions and nuanced adjustments affect outcome.

    Understanding What Sets 2-Toluenethiol Apart

    2-Toluenethiol steps into a category that intersects with specialty intermediates and performance additives. Unlike generic substituted thiophenols or straightforward benzenethiol, it features an aromatic ring with methyl and thiol side groups bonded at ortho positions. The structure introduces differences in odor profile, chemical reactivity, and compatibility with downstream reactions. Its melting point, boiling behavior, and solubility bring measurable benefits in organic synthesis and process scaling. Bench chemists notice the precise threshold where this compound unlocks selectivity or lowers transformation barriers—differences that turn up in lab yields, not just in catalog descriptions.

    Putting Chemistry into Practice

    Years of running reactors and maintaining continuous output have taught us the line between theoretical chemistry and what actually unfolds in glass and steel vessels. 2-Toluenethiol’s synthesis begins with established toluene derivatives. Introducing a thiol group at the right ring position calls for accurate reaction control, atmospheric management, and continual assay. Each cycle demands patience; trace contamination or heat variation disrupts purity faster than paperwork can warn. Raw feedstock quality affects side-product formation. Even seemingly minor pH shifts during aqueous workup put output quality at risk. The end-user rarely sees these challenges, but our experience underlines why tight process discipline results in a more reliable product.

    The Model We Produce

    Our plant runs a single, dedicated line for 2-toluenethiol, favoring purity and trace-metal control over raw throughput. The final product leaves the reactor with a purity standard fit for pharmaceutical and aroma industries. GC-MS and NMR analysis back our batch records; regular external testing connects us with the latest third-party benchmarks. Trace solvents or residual acid catalysts receive special attention. Each step reflects the aim for a reproducible, trustworthy standard rather than chasing volume alone.

    An Insider's Look at Specifications

    Published specifications matter, but factory floor realities matter more. We focus on keeping sulfur impurities below recognized thresholds—less than 100 ppm, measured routinely. Moisture content receives daily monitoring since water spikes during storage alter both application behavior and shelf life. The characteristic pungent odor—a signature for thiols—requires sealed containment and specialized handling. Our teams follow protocol for both personal safety and product preservation. We also set visual standards, routinely rejecting lots with turbidity or unexpected color metrics. Every drum ships with full retention samples and complete history.

    Working With Downstream Application Needs

    We spend time understanding what chemists and engineers actually do with 2-toluenethiol. Its primary use anchors in fine chemicals, pharmaceutical intermediates, polymerization modulators, and specialty rubber processing. Where other thiols aggressively transfer sulfur or promote side reactions, our streamlined process offers higher selectivity and cleaner downstream separations. We support customers who demand low side-caulk formation, limited off-odors, and minimal heavy-metal residue. Our feedback mechanisms connect directly with application chemists, encouraging real-world insight to drive continual improvement.

    Key Differences From Related Products

    2-Toluenethiol should not be mistaken for its para- or meta- isomers. The ortho configuration shifts reactivity, especially in nucleophilic substitution and directed ortho-metalation strategies. Comparative experience with benzenethiol shows a different solubility pattern in polar and non-polar media. In pharmaceutical building blocks, position-specific purity determines biological activity and impurity profiles of final drugs. The difference extends into odor threshold and volatility in fragrance or flavor manufacturing, where predictability counts. In rubber vulcanization, ortho-thiol groups lend finer control over cross-link density and performance consistency than benchtop alternatives. Years of batch documentation confirm that impurity carryover and process downtime decrease when the right positional isomer gets selected at source.

    Why Consistency and Transparency Build Confidence

    We learned through hundreds of batch cycles that trust builds around three pillars: consistent product, open records, and prompt problem-solving. Our operators know that client success downstream grows from every small adjustment made upstream. We catalogue every deviation, even those that miss external paperwork, to preserve traceability and resolve unforeseen issues together with technical partners. Instead of providing undifferentiated commodity volumes, we record spectral fingerprints for each batch and discuss findings with process development groups on the customer side. Shared learning from bottle to processing line creates gains for all parties.

    Product Stewardship and Environmental Management

    Manufacturing 2-toluenethiol generates sulfur-rich byproducts and organic residues. We treat these as resources for recovery, not waste for disposal. Closed-loop distillation setups recapture solvents, lowering emissions and costs over time. Physical containment gets regular review—a vital practice, as strong odors and environmental impact remain issues that affect operator safety and local communities. Wastewater streams undergo sulfur stripping and organic phase separation before re-entry to municipal processing. Periodic audits and third-party checks keep compliance aligned with emerging local, national, and international expectations. Our years of stewardship taught us to go above minimum requirements, because community relations and sustainability affect licensing, worker health, and long-term business viability.

    Shipping, Storage, and Real-World Logistics

    Shipping thiols is a unique challenge—no one forgets a spill of 2-toluenethiol. We specify tight-seal containers, active vapor scrubbers, and short-term transit windows to manage risk. Decades of working with carriers allowed us to finetune container protocols, combining thick-walled drums with temperature and humidity logging. Warehouse staff receive focused training to spot leaks and catch pressure build-up early. Internal policies stress “first in, first out” to stop product age creep and preservative overage. Maintaining a clean record with transport authorities and receiving sites comes from prioritizing real accountability over paperwork alone.

    Supporting Customer Problem-Solving

    Customers sometimes run into trouble scaling up a reaction or troubleshooting carryover in their final step. Our technical staff have walked that path, having spent time both at the bench and in the plant. We do not rely on templated suggestions, but listen to real process pain points—color drifts, unexpected GC peaks, or issues with sulfur migration. By referencing years of process logs, analytical outcomes, and operational learnings, we help customers re-optimize conditions or switch out handling materials. Application support works best as a conversation, not a transaction. Our field visits and sample sharing build relationships, teaching us where product nuances affect large-scale outcomes.

    Regular Reviews and Upgrades Through Experience

    Continuous improvement means learning from each production run. We meet weekly to review process yields, energy input, and any unexpected batch behavior. Feedback loops with clients highlight shifts in performance expectations. If a competing process outpaces ours in purity or cost, we look for root causes—sometimes in catalyst choice, sometimes in small equipment upgrades, often in operator technique. Investments are not limited to new hardware; we commit to staff development and advanced analytical training. Small innovations in cleaning cycles, temperature ramps, or filtration extend shelf life and lower off-spec rates. Documented evidence and open communication keep clients in the loop, growing faith in our process integrity.

    Integrating Regulatory Changes and Supporting Compliance

    Shifts in regulatory environments—for example, new labeling, hazard profiling, or workplace exposure limits—force regular realignment. We dedicate resources to monitoring chemical inventories, updating SDS information, and certifying transport compliance before changes become mandatory. Site inspections and customer audits reinforce our focus on hazard communication and environmental controls. Internal reviews go beyond “tick-the-box” audits—processes update in parallel with regulatory shifts. Practical hands-on adjustments to chemical handling, storage, or documentation aid customers faster than top-down rule publications alone.

    The Economic Impact at Scale

    Direct production of 2-toluenethiol creates both value and challenge. Volatile feedstock prices and energy costs dictate our process economics, not abstract economic modeling. Years of raw materials sourcing pros and cons taught us that second-tier suppliers introduce risk; trace impurities upstream cascade into quality issues downstream. Our buying team hunts for not just low price, but for reliability and traceability. Long-term contracting and in-house analysis of feedstock chemical profiles increase both plant uptime and final product integrity. Every cost-cutting measure and volume deal is compared to potential for downstream customer support calls and reputational risk—false savings erode trust fast.

    Anticipating Market Shifts

    Global demand for 2-toluenethiol tracks changes in end-user industries. New pharmaceutical syntheses or high-performance polymer trends produce sudden spikes in call-off or lengthy lulls. Our experience points to the value of flexible batch scheduling and steady engagement with formulation clients. We keep smaller stock ready for research customers and rapid scale-up projects; larger lots fill established industrial contract pipelines. Transparent lead times and realistic batch allocation match operating windows with customer deadlines, mitigating the risk of stock-outs or overproduction. Keeping a direct dialogue open with buying teams and production chemists helps us anticipate shifts before backorders disrupt downstream planning.

    Leveraging Laboratory Resources for Product Evolution

    In-house research and analytical development track customer needs and regulatory evolution. Each time a client requests a new purity standard or reduced impurity profile, our lab teams begin root-cause studies and small-scale synthesis runs. Experience with NMR, FTIR, GC-MS, and titration methods shortens learning curves for new specifications. Sharing sample runs with end-users during their process development yields practical feedback. Adjustments in purification or reaction quenching drive ongoing improvements, directly reflected in the next batch. Investing in pilot-scale reaction monitoring helps us ensure that improvements tested at bench level translate smoothly to plant scale, avoiding costly surprises later.

    What We Have Learned Over Time

    Making and supplying 2-toluenethiol involves far more than chemistry alone. It calls on us to listen to those using the material every day, push analysis past basic requirements, and bring hands-on honesty to every partnership. Building direct manufacturing capacity provided first-hand knowledge that generic intermediates and fine chemical trades cannot substitute. We pay attention to safety, environmental balance, customer technical hurdles, and market swings. Reviewing years of plant logs and laboratory reports anchors our outlook in practical reality, not theory.

    Summary: The Value of Direct Manufacturing

    2-Toluenethiol’s role in specialty chemistry grows out of careful process management, open communication, and a focus on the needs of those who turn raw material into real value. Rather than acting as a faceless link in a distribution chain, we build long-term trust on the shop floor and in client labs. Our experience underlines each challenge, from odor control to stringent analytical demands, met through real-time learning and customer connection. Making a better product means owning problems and solving them together, batch after batch, so customers can innovate with confidence.

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