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HS Code |
251836 |
| Cas Number | 2487-90-3 |
| Molecular Formula | C5H12N2S |
| Molar Mass | 132.23 g/mol |
| Iupac Name | 1,1,3,3-Tetramethylthiourea |
| Appearance | White crystalline solid |
| Melting Point | 78-81 °C |
| Boiling Point | 228 °C (decomposes) |
| Solubility In Water | Slightly soluble |
| Density | 1.06 g/cm³ |
| Flash Point | 115 °C |
| Chemical Structure | S=C(N(C)C)N(C)C |
As an accredited Tetramethylthiourea factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Tetramethylthiourea is packaged in a 500-gram amber glass bottle, sealed with a screw cap, and clearly labeled with hazard warnings. |
| Shipping | Tetramethylthiourea should be shipped in tightly sealed containers, away from moisture and incompatible substances. It must be clearly labeled, handled with care, and transported according to regulatory standards for chemicals. Appropriate protective packaging and documentation are required to ensure safe delivery, minimizing risk of exposure, spills, or environmental contamination. |
| Storage | Tetramethylthiourea should be stored in a cool, dry, well-ventilated area, away from sources of ignition, heat, and incompatible materials such as oxidizers and acids. Keep the container tightly sealed and protected from physical damage. Store in a chemical-resistant container labeled appropriately, and avoid exposure to moisture. Ensure access is restricted to trained personnel and use appropriate secondary containment if necessary. |
Applications of Tetramethylthiourea in Industrial ManufacturingTetramethylthiourea serves as a specialty raw material in several industrial sectors. Its chemical properties support reaction processes, impact product performance, and enable precise operational control. Below, we detail significant application routes relevant to actual manufacturing practices. 1. Vulcanization Accelerator in Rubber ManufacturingRubber processing facilities use Tetramethylthiourea as a secondary or ultra accelerator in high-performance vulcanization systems. Compounders select it for applications demanding rapid vulcanization cycles or heightened curing uniformity, especially in products requiring resistance to heat aging or flex-fatigue. Engineers opt for specific dosages based on compound type, sulfur ratios, and targeted mechanical properties. This accelerator enables reliable cross-link density, tight hardness tolerances, and stable processing windows for technical rubber goods. Industry compliance standards
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2. Intermediate in Pharmaceutical API SynthesisTetramethylthiourea acts as a critical synthetic intermediate for the production of selected active pharmaceutical ingredients (APIs). It participates as a reactant in cyclization or thiourea-type derivatization steps favored in heterocycle construction. Process chemists value its predictable reactivity for constructing thiazole rings and other sulfur-containing cores. Quality control must verify identity and purity to pharmaceutical synthesis standards, supporting reliable downstream yields. Industry compliance standards
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3. Curing Agent in Epoxy Resin FormulationsEpoxy resin producers employ Tetramethylthiourea as a latent curing agent to control gel time and thermal stability in adhesive, coating, and composite systems. Its inclusion extends the processing window without compromising final strength and chemical resistance. Formulators adjust its dosage for two-part systems or powder coatings based on desired cure profiles and working time. It supports manufacturing lines operating with lean curing schedules and high throughput demands. Industry compliance standards
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4. Corrosion Inhibitor Additive in Metalworking FluidsMetalworking fluid formulators add Tetramethylthiourea as a corrosion inhibitor component to enhance the protection of ferrous and non-ferrous metals during milling, drilling, or storage. It forms stable films on metal surfaces, suppressing oxidative degradation under high-humidity and saline exposure. Laboratory and field tests define schematics for additive loadings based on fluid chemistry, targeted application (emulsifiable oil, semi-synthetic fluids), and expected protection timeframes. Industry compliance standards
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5. Sulfur Donor in Agrochemical SynthesisAgrochemical manufacturing facilities integrate Tetramethylthiourea as a controllable sulfur donor during the synthesis of certain herbicides and fungicidal actives. Precision in its addition impacts the conversion yield, impurity profile, and environmental compliance of the final crop protection agents. Chemists monitor usage to match process safety protocols and minimize undesired polythio by-products, using real-time analytical feedback during each batch. Industry compliance standards
Typical usage ratio
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In our years producing specialty organic chemicals, Tetramethylthiourea stands out because of its reliability and strong demand from high-performance ingredient sectors. This compound, sometimes called TMTU, has a well-defined role in chemical syntheses and industrial catalyst formulas. We manufacture Tetramethylthiourea directly at our facility, managing every part of the process: sourcing, synthesis, quality assurance, and shipment. Our experience gives us insight into why our partners prefer our product over others, and what benefits they find in the unique characteristics of TMTU.
Most of our Tetramethylthiourea leaves the reactor with purity levels above 99%. We monitor batch-to-batch consistency at the molecular level with up-to-date chromatography and melting point verification. Popular demand tends toward crystalline powder form, which assures scalpel-sharp dose control in further processing. We pack and certify purity and physical state in every lot, keeping all handling and documentation transparent and auditable.
Requests for specific mesh sizes or extra-low moisture lots have grown as downstream requirements become more precise. Our team separates, mills, and screens as requested, ensuring every kilogram reflects the requirements set by your process engineers. If high moisture sensitivity is a factor, desiccant-packed drum options remain available. Each order gets logged with a unique batch identifier, closing the chain of custody from production to receipt at your facility.
Customers often ask us why Tetramethylthiourea persists on their ingredient lists, even as technologies advance and regulation changes shift the marketplace. One reason is its established role as a sulfur donor in various organic reactions. Where reliable sulfur transfer, moderate reactivity, and predictable side products are needed, few alternatives impart the same reaction profiles as TMTU. Its function in thioamide and heterocycle formation remains irreplaceable in synthetic pharmaceutical and agrochemical routes.
Another segment most vocal about quality and reliability includes polymer additive formulators. Tetramethylthiourea acts as a vulcanization accelerator and antioxidant component in certain specialty rubber mixes. We hear directly about the impact subtle purity shifts can have on batch consistency. These industries depend on tight molecular weight control and low trace impurity content. Our long-term relationship with these clients gives us daily feedback on what matters in the real production environment—consistency, repeatability, and traceability always come up first.
We see direct competition between Tetramethylthiourea and another sulfur-based agents. Alternatives may be more widely available, but users look to TMTU for specific benefits: less aggressive odor profiles, more manageable toxicity ratings, and smoother handling in multi-step synthesis setups. Over-engineering a solution rarely outperforms sticking to a known, reliable input. End-users have pointed out that TMTU works where more reactive or less stable options fail to control side reactions or produce excess waste.
One common example surfaces in electronics and specialty coatings manufacturing, where the margin for off-specside products narrows every year. Mistakes or unexpected interactions cost time and money. Decision makers in these sectors appreciate that our Tetramethylthiourea holds up batch after batch, showing the same analytical fingerprint every time. They report fewer contamination events, smoother end-of-line purifications, and a reduction in lot rejection compared with alternative suppliers.
Beyond reliability, our direct-from-manufacturer approach solves real procurement problems. Instead of working through a series of intermediaries, purchasing managers negotiate directly with us, trim lead times, and minimize transit delays. This eliminates a major source of stress for industries working with tight schedules, regulatory inspection windows, or time-sensitive research programs.
Our customers rarely use Tetramethylthiourea on its own as a finished end-product. Instead, it’s a high-impact tool within critical intermediate steps across medicines, agrochemicals, high-strength polymers, and other specialties. Its key attribute—selective sulfur donation—streamlines the creation of heterocyclic rings and thioamide substructures. These reactions produce active ingredients in important classes of antibiotics, antifungals, and other therapeutic agents.
Working directly with research labs, we see Tetramethylthiourea handled in batches as small as a few hundred grams or scaled all the way to multi-ton runs. Its handling profile makes weighing, blending, and dissolving straightforward, with a melting point generally above ambient temperature in normal conditions. This minimizes the risk of accidental volatilization or loss—an important benefit in environments that keep every gram accounted for by regulation or quality audit.
Beyond pharma, we participate in rubber and plastics compounding discussions where Tetramethylthiourea's performance in accelerator blends often leads the way in innovative applications. Some teams report minor improvements in elasticity, while others see sharper cut-off points in their cure profiles. The value sits in predictability: quality control teams expect every batch to fall in line with historical norms, and we structure our whole manufacturing workflow to deliver that result, not just meet a minimum specification.
Open feedback loops between manufacturer and end-user sharpen the value proposition for Tetramethylthiourea. Many customers express concern about possible residue or contamination dragging through a process chain. By running every lot through modern purification steps and maintaining logs accessible for customer review, we mitigate those concerns before raw material hits your dock. If a customer’s downstream equipment shows compatibility challenges or reactivity quirks, we offer samples for validation rather than pushing a standard solution blindly.
For clients in regions with tough chemical regulations or unpredictable import controls, predictability in documentation makes a difference. We build our export paperwork and product labeling to facilitate regulatory review—transparency at every link. Many large buyers share that mapping the batch lineage and purity data to their facility's historical data streamlines compliance responses, audit preparation, and external reporting requirements.
Safety plays a big role in our production choices. Tetramethylthiourea has fewer acute toxicity and skin irritation issues than several rougher alternatives in the sulfur donor category, but risk assessment remains central to safe handling. Our team invests in robust packaging that dampens vibration and shields powder from accidental moisture exposure. Each drum and bag carries durable labeling to keep identification easy, even after months in transit or long-term storage.
Many logistics partners have commented on the improvement in damage rates and lost-in-transit claims since we moved to industrial-grade lined containers. In warehouse conditions, our product keeps well at room temperature, as long as it avoids direct water contact and prolonged UV exposure. Customers in especially humid climates usually request extra sealing; we oblige with custom packaging, keeping the vessel humidity as close to zero as practical by date of receipt.
Modern chemical manufacturing must keep a close eye on environmental footprint and compliance management. Tetramethylthiourea doesn't persist long in most waste streams, but responsible end-users count on upstream documentation and data for accurate lifecycle reporting. We provide complete SDS information with every shipment, including trace impurity profiles for customers that require clearance from internal and governmental safety teams.
Waste management in our own facility closes every loop where legally and technically feasible. All filtration media and wash solvents pass through reclamation steps. Our team tracks consumption-to-waste ratios monthly, incentivizing continual process improvement. Large brand partners from pharmaceuticals and electronics trust this approach because it supports their end-to-end sustainability audits. They return repeatedly, confident their own green chemistry claims hold up to independent review based partly on our traceable, fully documented supply chain.
Buyers with deep experience in thiourea derivatives see the tradeoffs in switching between Tetramethylthiourea and similar compounds. Standard thiourea and its diphenyl variants have served as sulfur sources for generations, but each veers into distinct hazards or reactivity challenges. Many alternatives exhibit unpredictable volatility or higher water solubility, increasing the risk of unwanted byproducts in moisture-sensitive reactions.
Tetramethylthiourea walks the line between stability and reactivity. Its structure reduces the intensity of dust and inhalation hazards associated with more volatile agents. Application teams confirm processing steps run with fewer hiccups when using TMTU relative to rougher, unrefined grades sourced elsewhere—especially in scale-up phases of new project launches. In catalysis, its moderate electron-donating capacity strikes the right balance for selective reaction pathways, without introducing excessive risk.
One lesson stands above all in our years making Tetramethylthiourea: customer trust comes from transparency and real communication. Buyers that source directly from the manufacturer always get reliable answers about process changes, outage risks, and shifting regulatory landscapes. Our operators know that their attention to cleanliness, organization, and documentation reflects immediately in the reputation we've built across decades in the chemical industry.
Chemicals like Tetramethylthiourea might seem interchangeable on paper, but users at the sharp end—technical teams that process, transform, and analyze these raw materials—understand the difference real manufacturing expertise makes. We open our doors to site audits, third-party quality checks, and ongoing dialogue. That relationship approach has kept our customer base loyal through waves of market turbulence, price swings, and new regulatory hurdles.
Feedback drives our innovation, more than any standardized guideline. R&D partners summarized the most important change they saw over the last few years: improved filtering and reduction of trace metallic contaminants. Acting on that, we invested in new purification and analytical equipment, closing gaps that customers spotted in real-world application. It was only through honest, constructive criticism from these front-line users that we refined our process and raised the bar.
Process engineers in emerging markets asked for smaller, more manageable package sizes, suiting their laboratory-scale test runs. Rather than force large-format drums, shifting to modular packaging opened new doors and cut waste in supply chains from Asia to North America. We watch actual demand trends, keep stock levels as lean as possible, and only scale up when customer signals suggest a real need.
Tetramethylthiourea lies at the intersection of reliability, practical performance, and trusted supply. Across synthetic chemistry, polymer science, and advanced manufacturing, its consistent properties and stable supply make it indispensable in applications where change brings risk. Our manufacturing approach builds on decades of direct customer feedback, perpetual process improvement, and a clear view of compliance from production floor to global markets.
End-users with a stake in production quality, regulatory alignment, and repeatable results rely on the traceability that comes only from a direct relationship with the manufacturer. We stand by Tetramethylthiourea, shaped by hands-on experience and grounded in the everyday realities of chemical industry needs.