Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
Follow us:

2-Thiophenol

    • Product Name 2-Thiophenol
    • Alias Benzenethiol
    • Einecs 202-425-9
    • 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

    687328

    CAS Number 108-98-5
    Molecular Formula C6H6S
    Molar Mass 110.18 g/mol
    IUPAC Name benzenethiol
    Synonyms thiophenol, mercaptobenzene, phenyl mercaptan
    Appearance colorless to pale yellow liquid
    Odor unpleasant, strong, garlic-like
    Melting Point -16 °C
    Boiling Point 170 °C
    Density 1.07 g/cm³ (at 20 °C)
    Solubility in Water slightly soluble
    Refractive Index 1.586 (at 20 °C)
    Flash Point 44 °C
    Vapor Pressure 0.4 mmHg (20 °C)
    Autoignition Temperature 572 °C

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

    Packing & Storage
    Packing 2-Thiophenol is packaged in a 100 mL amber glass bottle with a secure screw cap, labeled with hazard warnings and details.
    Shipping 2-Thiophenol is shipped in tightly sealed containers made of compatible materials to prevent leaks and evaporation. It is transported under cool, dry conditions, away from sources of ignition, acids, and oxidizing agents. Appropriate hazard labels and documentation are included, complying with relevant regulations for flammable and toxic chemicals.
    Storage 2-Thiophenol should be stored in a tightly sealed container, away from light, heat, and sources of ignition, in a cool, well-ventilated area. It must be kept separate from oxidizing agents and strong bases. Ensure chemical fume hood ventilation during handling, and store under an inert atmosphere if possible to prevent oxidation. Properly label the container and follow local regulations.
    Application of 2-Thiophenol

    Applications of 2-Thiophenol in Industrial Manufacturing

    Our production-scale 2-Thiophenol is utilized as a core intermediate in tightly defined chemical manufacturing sectors where precise molecular functionality is essential. The following application scenarios illustrate how our material supports key industrial transformation processes. Each scenario outlines specific industry standards, scalable formulation details, integration points in downstream processing, and clearly identified finished product types.

    1. Pharmaceutical Intermediate Synthesis

    2-Thiophenol serves as a sulfur donor and nucleophile in the synthesis of active pharmaceutical ingredients (APIs) and specific intermediates, playing a critical role in forming thioether, thiol, and sulfonamide moieties. It is widely used in the manufacture of drugs containing benzothiazole or thioether groups, including antimicrobials and CNS drugs. Stringent quality and purity controls apply, as these intermediates undergo subsequent steps to final API formation.

    Industry compliance standards

    • ICH Q7 GMP for Active Pharmaceutical Ingredients
    • USP, EP, JP (as relevant for downstream API registration)
    • 21 CFR Parts 210/211 (FDA cGMP for finished pharmaceuticals)
    • EDQM CEP certification (upon API synthesis stage)

    Typical usage ratio

    • 0.5–2.5 molar equivalents in coupling and substitution reactions, adjusted for stoichiometry and impurity control according to validated process yields and regulatory residue requirements.

    Downstream process integration

    • Added during initial API intermediate formation or during thiolation/functionalization stages in multi-step API synthesis, typically under inert atmosphere and moisture-controlled environments.

    Final product types

    • Benzothiazole-based API intermediates (e.g., for riluzole, omeprazole, thioacetamide derivatives)
    • Antimicrobial and analgesic API core intermediates
    • Specialty CNS pharmaceutical compounds using thioether-containing scaffolds

    2. Agrochemical Active Ingredient Manufacturing

    The material is valued as a key building block for various agrochemical actives, especially fungicides and herbicides where sulfur-containing aromatic rings are crucial for biological activity. 2-Thiophenol is introduced at early stages to construct thiobenzothiazole or thioether structures that define the mode of action in the final pesticide or fungicide. Downstream processes require strict control to ensure environmental and product safety compliance.

    Industry compliance standards

    • FAO/WHO Codex for agricultural pesticides (where relevant)
    • ISO 9001:2015 for agrochemical QC management systems
    • EU REACH SVHC and registration requirements for intermediates
    • China GB/T 20695-2006 (technical grades for agrochemical intermediates)

    Typical usage ratio

    • 1–5% w/w in active ingredient synthesis depending on target molecule complexity, molecular conversion rate, and route selectivity optimized for downstream environmental residue control.

    Downstream process integration

    • Charged during the early formation of the heterocyclic core or side-chain thiolation in closed reactors, often followed by multi-stage oxidative or alkylation steps under batch or continuous-feed conditions.

    Final product types

    • Benzothiazole and thioether-derived fungicide actives (e.g., thiabendazole class)
    • Precursor to systemic herbicide intermediates
    • Intermediate for insecticidal molecules with sulfur aromaticity

    3. Polymer and Resin Modifier Production

    In specialty polymers and resin systems, 2-Thiophenol acts as a monomer modifier and chain transfer agent, enabling the introduction of sulfur functional groups into phenolic, epoxy, and polysulfone resins. This delivers unique electrical, thermal, and adhesive properties, important for performance coatings and electronics-grade materials. The integration point and usage must match the end-use compliance for contact-sensitive goods like electronic encapsulants and high-grade adhesives.

    Industry compliance standards

    • UL 94 and IEC 60695 for flammability (finished resin evaluation)
    • RoHS and WEEE Directives for electronics’ material safety
    • ISO 9001:2015 for polymeric material manufacture
    • REACH/TSCA registration (if above threshold amounts in finished products)

    Typical usage ratio

    • 0.25–1.2% by mass in resin batch production, calculated relative to base polymer depending on desired crosslink density or electrical property modification targets, and within limits for downstream emission and migration regulations.

    Downstream process integration

    • Dosed during pre-polymerization or chain transfer initiation steps in batch polymer kettles; can also be introduced post-polymerization for specific sulfur functionalization roll-outs.

    Final product types

    • Electrically conductive polymeric coatings
    • Thermally stable resin composites
    • Adhesives for high-performance electronics and automotive assembly

    4. Dye and Optical Brightener Intermediate Manufacturing

    2-Thiophenol is selected as a core reactant for the construction of sulfur-containing aromatic frameworks in syntheses of several classes of dyes and optical brighteners. These groups impart color-fastness, photostability, and fluorescence characteristics required for textile, plastics, and paper industries. Downstream production relies on the precision introduction of the thiol group at specific stages to control chromophore development and ensure consistent product output.

    Industry compliance standards

    • OEKO-TEX® Standard 100 for textile use (on finished dye/brightener)
    • EN ISO 105-E04 (color fastness testing for textiles)
    • GMP for dyes and colorant intermediates (regulated by destination market)
    • REACH Annex XVII for restricted substances in colorants

    Typical usage ratio

    • 0.8–3% by weight of core reaction batch, adjusted according to designed chromophore length and intensification requirements in dye molecule synthesis, while balancing waste compliance and downstream colorant purity demands.

    Downstream process integration

    • Added during aromatic coupling or nucleophilic aromatic substitution phases; integrated as final functionalizing agent in multi-stage dye intermediate production lines.

    Final product types

    • Styryl and benzothiazole-based optical brighteners
    • Thioether-structured azo and sulfur dyes for synthetic fibers
    • UV-activated colorant intermediates for plastics and papers

    5. Specialty Flavors and Fragrance Ingredient Manufacturing

    In fine chemical production focused on flavor and fragrance synthesis, 2-Thiophenol contributes to the creation of complex sulfur aromatic compounds used in trace quantities for high-impact olfactory properties, especially in roasted, meaty, and savory notes. Due to strict purity and safety requirements, this use necessitates detailed monitoring from raw material intake through finished product testing, ensuring suitability for food contact and cosmetic-grade applications.

    Industry compliance standards

    • FCC (Food Chemicals Codex) for ingredient purity in flavors
    • IFRA Standards for fragrances
    • FEMA GRAS registration (as applicable to intermediates)
    • ISO 9001:2015 and FSSC 22000 for controlled ingredient manufacture

    Typical usage ratio

    • 0.01–0.5% w/w in the starting batch for intermediate formation, adjusted within sensory threshold requirements and toxicological limits for the final consumer-approved flavor/fragrance compound.

    Downstream process integration

    • Enters synthesis via controlled batch reaction during key thioaromatic coupling phases; further purification sequences ensure volatile residue control and olfactory profile stability.

    Final product types

    • Savory and roasted note-enhancing aroma intermediates
    • Sulfur-based food flavor molecules (e.g., 2-phenylthiol-containing compounds)
    • Cosmetic fragrance bases requiring high-impact sulfur notes
    Free Quote

    Competitive 2-Thiophenol prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

    Get Free Quote of Sinochem Nanjing Corporation

    Flexible payment, competitive price, premium service - Inquire now!

    Certification & Compliance
    More Introduction

    2-Thiophenol: Experience-Driven Craftsmanship in Chemical Manufacturing

    Our Journey with 2-Thiophenol

    We have been producing 2-Thiophenol in our facility for over a decade, starting from the early requests of pharmaceutical labs searching for a reliable source of aromatic thiols. Over the years, 2-Thiophenol has revealed itself as more than just another specialty chemical in our catalog. This compound, known for its sharp aroma and versatility, has consistently challenged us to improve every facet of our process—from raw material selection and plant hygiene to packaging and documentation.

    Our production teams live with the realities of 2-Thiophenol. This isn’t a paper exercise for us. The raw thiophenol enters the reactor as an almost colorless or pale yellow liquid, with a distinctly pungent smell that unmistakably signals the presence of sulfur. Everyone in our team knows well how small leaks can clear out a shop floor, so we invest time and energy into training, ventilation, and early warning detection. Process safety with organosulfur compounds is not a side concern—it shapes how we design equipment, choose materials of construction, and deploy safeguards.

    What Sets Our 2-Thiophenol Apart

    Many producers chase volume, but we focus on purity and consistent performance. Each batch is analyzed with modern chromatography, achieving a purity above 99%, something you can see reflected in the reaction yields our customers report back. Impurities, especially sulfur-containing byproducts, can trigger side reactions for our customers. Early on, we collaborated with research clients to refine our purification steps, balancing between product quality and respecting environmental controls on waste sulfur. We learned to replace traditional alkaline washes with an integrated distillation step, improving both the chemical’s purity and reducing effluent.

    Our 2-Thiophenol comes under catalog number T-101. We do not treat this number as merely an identifier—it reflects years of iterations. The stability profile of fresh T-101 minimizes oxidative discoloration, which many researchers notice if the product sits too long in warehouse conditions. Shelving 2-Thiophenol without attention to light, air, and humidity quickly leads to product loss. We redesigned our packaging to include small-volume amber bottles sealed under inert atmosphere, sharing guidelines with all partners to maintain product quality through the full supply chain.

    Cheaper alternatives fill the market. Some come with carrier solvents, others with stabilizers or trappings that compensate for production shortcuts. We keep our material unblended, supplying the pure thiol without additive or solvent. This approach reduces the introduction of unknowns into high-stakes syntheses—custom peptide couplings, agrochemical intermediates, and advanced materials development are less forgiving than bulk applications. Chemical purity supports process reproducibility, especially critical for pharmaceutical or electronic material partners.

    Specifications, Crafted from Experience

    The practical handling of 2-Thiophenol reveals its strong sulfurous odor and its sensitivity to oxidation. We manufacture and fill the product under nitrogen to prevent disulfide formation. Our team sees firsthand how trace oxidation alters not only the smell but also the efficacy of the compound in end-use reactions. We measure purity by GC and HPLC, targeting less than 0.2% disulfide byproduct. Each drum, pail, or bottle receives a unique lot number, linking every customer back to our precise batch records.

    Our process does not rely on mass production reactors. Instead, we use small to mid-size vessels equipped with automation for temperature, agitation, and feed rates. This setup benefits laboratories and manufacturing pilots alike, as it gives us the flexibility to meet custom volume requests while upholding narrow purity windows. While larger facilities might tout lower prices, our customers return for the ability to trust every batch—something built on traceability, repeatable outputs, and responsive technical service.

    The chemical’s physical properties mean it moves through stainless steel under temperature control, never coming into contact with open-air lines. All exposure points—pumps, couplings, filling lances—feature gasketing and seals selected using field experience. Overambitious suppliers sometimes forget the toll that organic thiols take on cheap plasticware, but we learned to avoid those mistakes early on.

    Applications Shaped by Customer Challenges

    2-Thiophenol does not sit idle on shelves. In our experience, most of our customers draw it for synthesis of arylthioethers, agrochemical intermediates, specialty polymers, and as a building block for pharmaceuticals. In peptide chemistry, the thiol group enables rapid coupling, its electron-donating character accelerating challenging bond formations. Many times, partners approach us after experiencing inconsistent results due to trace impurities—peroxides, oxygenated sulfur byproducts, or even residual solvents from competing suppliers.

    In polymer science, 2-Thiophenol enters as a chain transfer agent. The free thiol group controls polymer length and branching, creating new possibilities in specialty elastomers or advanced anti-fouling coatings. The standards required in these applications educate us—our operators learn quickly which deviations will create headaches downstream, and we reflect this knowledge back into the training and procedures.

    We frequently discuss reaction specifics with customers—reaction tolerance, catalytic requirements, and purification challenges offer feedback that shapes improvements to our own procedures. Where some see a commodity, we see an evolving relationship between molecular structure and real-world results. Each kilogram shipped often reflects hours of troubleshooting, discussion, and patience at the customer’s end and ours.

    Environmental Responsibility—and the Realities on the Ground

    Producing organosulfur compounds like 2-Thiophenol faces growing pressure from regulatory bodies, particularly with emissions of volatile organic compounds and sulfurous gases. Our location brought us into early conversations with local authorities, shaping our solvent recovery efforts and scrubber installations. The sulfur odor-suppressing measures absorbed considerable capital, but we learned to balance these costs with process bottlenecks. Failing to do so risks shutdowns—not a theory, but a reality we’ve observed in peers’ facilities.

    Our efforts to recover and treat waste streams also inform how we communicate with customers. Some express concern over the long-term waste management attached to using thiols; we share best practices for handling, neutralization, and disposal, built from our daily operations. This transparency builds trust—environmental responsibility is not just a slogan, but an essential part of operating in this sector.

    Quality Assurance Rooted in Daily Practice

    Every vial of 2-Thiophenol leaving our plant receives documentation certified by our in-house QC specialists. We’ve standardized a retention system—split-sample verification lets us track complaints not only by product but down to the blend, vessel, and even exact weighing equipment. Auditors visit our site annually, sometimes with their own global benchmarks, and we welcome their scrutiny. It teaches us new perspectives and shows customers that we meet top industry expectations without lowering the bar during tight production windows. Mistakes, when they happen, become catalysts for immediately improved procedures.

    Counterfeit chemical products threaten the integrity of supply chains, which we combat through serialization and blockchain-enabled lot tracking for key accounts. These tools ensure product authenticity downstream, reducing risk for our customers. The trust earned is a reflection of years spent working side-by-side with technical, procurement, and safety teams—never cutting corners, always learning from honest feedback.

    Why 2-Thiophenol Deserves Special Handling

    Every operator who loads, samples, or packages this product knows its signature odor and the intense headaches that follow poor containment. The molecule’s low odor threshold teaches respect and discipline—complacency is not an option. We treat personal protective equipment as standard, using half-mask respirators, goggles, and chemical-resistant gloves for all operations. Facility entrances deploy sulfur column scrubbers after every transfer batch—a small detail that pays off in employee comfort and safety.

    Unlike other aromatic building blocks, 2-Thiophenol will not tolerate storage near oxidizing agents. Storage strategies change with the seasons in our environment; low temperatures keep auto-oxidation down, but we supplement with nitrogen blankets and quarterly stability checks. These extra measures come from field experience—not only to meet regulatory guidelines but to protect both product viability and the health of all who handle it.

    What Sets 2-Thiophenol Apart From Similar Products

    The chemical landscape offers several aromatic thiols and related sulfur compounds, but 2-Thiophenol sets itself apart through its reactivity, purity demands, and the rigorous control infrastructure it imposes. Compared with 4-thiocresol or benzenethiol, 2-Thiophenol’s ortho arrangement allows for more selective syntheses in heteroaromatic chemistry. Customers report higher specificity in palladium-catalyzed coupling reactions, something we continually verify in our technical support engagement.

    Many competitors introduce stabilizers, which can interfere downstream. Our direct-to-synthesis grade 2-Thiophenol skips these additions, protecting the integrity of complex syntheses. Side-by-side chemical analyses run by several labs show cleaner spectra and improved compatibility with advanced catalysts straight out of the bottle. This translates to fewer purification headaches, stronger yields, and smoother project scale-ups.

    While other producers market general thiols with ambiguous labeling and unknown histories, we let our process records, batch testing, and open dialogue build credibility. Not every customer requires the tight purity specifications we maintain, but those with strict regulatory, pharmacological, or advanced materials requirements notice the difference. For customers scaling from laboratory to pilot to commercial production, this reliability becomes non-negotiable.

    Day-to-Day Lessons in Manufacturing and Partner Support

    Each production campaign teaches us nuances. Variations in input quality, even within specification, nudge final product color or reactivity. We run smaller developmental campaigns alongside scale operations—this pushes refinement, not just repetition. Internal competition between shifts to achieve the lowest off-spec rates motivates constant vigilance and feedback. Teams gather daily to review deviations, propose changes, and recount small victories or near-misses. No decision gets made in a vacuum.

    Customer relationships often begin with technical requests—can we shorten lead time, change lot sizes, offer direct feedback on failed reactions? We built our support ethos not just on supplying a material but on becoming an extension of our customers’ R&D teams. We host regular calls, sometimes even site visits to review process data in person. This transfer of knowledge builds long-term trust that transactional suppliers often neglect.

    Our team invests in ongoing education—training in analytical methods and regulatory updates helps us speak the same language as university labs and international pharma groups. Regulatory teams bring us early warnings about evolving REACH registrations or new import requirements, and we share these updates with our partners before they feel the pain of shipping delays or nonconformance.

    Collaborative Problem-Solving and Product Innovation

    Many times, we became a development partner due to issues with reproducibility or legacy product lines. Some customers struggled with materials from low-cost regions, with erratic supply or off-color batches derailing entire campaigns. Our technical staff engaged directly—running side-by-side reactions, sharing chromatograms, and troubleshooting trace contaminants. We adjusted our process control range after a leading pharmaceutical partner’s feedback, resulting in tighter sulfur impurity profiles and lower batch-to-batch drift. Both sides benefit when communication remains honest and two-way.

    Facing requests for customized formulations, we occasionally produce blended concentrates or pre-packed single-use aliquots. This comes with challenges—greater demands on stability, documentation, and logistics. We treat every specialty request as an opportunity to advance our understanding of how 2-Thiophenol interacts with cutting-edge research or manufacturing platforms.

    Future Challenges and Our Commitment

    Chemical manufacturing is an ever-evolving landscape, with raw material constraints, shifting compliance targets, and rapid advances in application science. We adapt because experience demands it, not only from competition but because our customers and employees rely on certainty. Each batch of 2-Thiophenol is more than a checkmark—it is a reflection of the sweat, discipline, and hard-won insight from every operator, analyst, and customer who touches it.

    We measure our success not simply by annual output, but by the relationships we maintain and the tangible value delivered to each process, lab, or new chemical entity. Our doors stay open to feedback, technical discussions, and new challenges. For every request—no matter how unconventional—we are prepared to listen, adapt, and deliver.

    2-Thiophenol distilled in our plant traces the path of trust, hard work, and shared problem-solving. The molecule itself may be familiar, but the process behind every bottle reflects our ongoing commitment to safety, transparency, and real-world performance.