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2-Amino-5-Ethyl-1,3,4-Thiadiazole

    • Product Name 2-Amino-5-Ethyl-1,3,4-Thiadiazole
    • Alias 2-Amino-5-ethyl-1,3,4-thiadiazole
    • Einecs 249-435-3
    • 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

    211134

    Chemical Name 2-Amino-5-Ethyl-1,3,4-Thiadiazole
    Molecular Formula C4H7N3S
    Molecular Weight 129.18 g/mol
    Cas Number 2349-99-7
    Appearance White to off-white crystalline powder
    Melting Point 140-144°C
    Solubility In Water Slightly soluble
    Purity Typically ≥98%
    Storage Conditions Store in a cool, dry place
    Smiles CCc1nnc(N)s1
    Inchi InChI=1S/C4H7N3S/c1-2-3-6-7-4(5)8-3/h2H2,1H3,(H2,5,7)
    Pubchem Cid 26232

    As an accredited 2-Amino-5-Ethyl-1,3,4-Thiadiazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The chemical is packaged in a 100-gram amber glass bottle with a sealed cap, labeled "2-Amino-5-Ethyl-1,3,4-Thiadiazole".
    Shipping 2-Amino-5-Ethyl-1,3,4-Thiadiazole should be shipped in tightly sealed containers, protected from moisture and light. Package in accordance with local, national, and international regulations for chemical substances. Utilize appropriate labeling, and ensure compatibility with packaging materials. Ship at ambient temperature unless specified, and include a safety data sheet (SDS) for reference.
    Storage Store **2-Amino-5-Ethyl-1,3,4-Thiadiazole** in a tightly sealed container, away from moisture and incompatible substances. Keep it in a cool, dry, well-ventilated area, protected from light and sources of ignition. Ensure appropriate labeling and avoid temperature extremes. Access must be limited to trained personnel, and suitable personal protective equipment (PPE) should be available when handling the chemical.
    Application of 2-Amino-5-Ethyl-1,3,4-Thiadiazole

    Applications of 2-Amino-5-Ethyl-1,3,4-Thiadiazole in Industrial Manufacturing

    2-Amino-5-ethyl-1,3,4-thiadiazole serves as a core intermediate in several specialized downstream industries. Our production meets international compliance criteria, with strict attention to end-use integration in each application sector. Below we detail the primary and validated segments incorporating this compound as a functional or structural precursor.

    1. Pharmaceutical Intermediate for Active Pharmaceutical Ingredient (API) Synthesis

    The compound holds established value in the synthesis of certain API molecules, especially in the assembly of thiadiazole-containing moieties for anti-microbial and anti-inflammatory drugs. Manufacturers deploy tailored process routes where this material supplies the base ring structure required for subsequent functionalization, ensuring batch consistency. Its integration starts at the formation stage of the heterocyclic core and continues in purification and crystallization stages, supporting scale-up for drug substance production as defined by the therapeutic indication and regulatory filing.

    Industry compliance standards

    • ICH Q7: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP-NF and EP Pharmacopoeia requirements for intermediates (where monographs exist)
    • 21 CFR Part 211 (GMP for finished pharmaceuticals)
    • Process batch records and Change Control Management

    Typical usage ratio

    • Forms 1–10% w/w of API process inputs, depending on route yield and subsequent derivatization steps
    • Ratio adjusted according to targeted final API molar requirements and reaction scheme

    Downstream process integration

    • Charged at the ring assembly stage as a primary building block
    • Undergoes transformation and purification during subsequent synthesis steps
    • QC performed by HPLC and NMR across steps to monitor integration and residuals
    • Cross-checked for absence of contamination impacting final API purity

    Final product types

    • Antimicrobial drug substances (e.g., sulfathiazole derivatives)
    • Anti-inflammatory actives for oral and topical dosage forms
    • Research compounds for preclinical anti-infective studies
    • Building blocks for contract pharmaceutical synthesis

    2. Agrochemical Synthesis Precursor

    In the crop protection sector, this intermediate functions in the production of selective herbicides and fungicides. Formulators employ it to generate thiadiazole-based agro-ingredients valued for robust field stability and low mammalian toxicity. The molecule is introduced in condensation and coupling steps, enabling targeted bioactive moiety construction. Quality teams track its conversion rates to manage residual active content and environmental impact at later application stages.

    Industry compliance standards

    • FAO/WHO JMPR Good Laboratory Practice for pesticide synthesis
    • REACH (EU) Annex IX Guidance for chemical synthesis intermediates
    • ISO 9001 Quality Management Systems for agrochemical manufacturing
    • Local authority pesticide formulation registration (e.g., EPA, EU Plant Protection Product Regulation)

    Typical usage ratio

    • Usually 5–18% w/w of initial synthesis input, tailored per target herbicide/fungicide molecule
    • Adjusted based on desired crop protection spectrum and required finished product loading

    Downstream process integration

    • Added at the condensation or functionalization step of the active ingredient pipeline
    • Intermediate undergoes further derivatization for site-specific molecular activity
    • Process QC involves GC-MS and actives content verification
    • Conversion regulated to minimize process waste and optimize bioactive generation

    Final product types

    • Precursor for thiazole-based herbicides
    • Component in systemic fungicides
    • Seed treatment chemical intermediates
    • Field-tested pesticide active ingredients

    3. Corrosion Inhibitor Additives for Metalworking Fluids

    Metal treatment formulators use this thiadiazole derivative to enhance corrosion resistance in water-based and oil-based metalworking fluids. Acting as a sulfur and nitrogen source, it binds with metallic surfaces to reduce oxidation during machining and storage. The substance is metered directly into fluid concentrate batches, with control limits based on tribology lab simulations and customer performance requirements in harsh environments.

    Industry compliance standards

    • ASTM D4627 (Corrosion Inhibitor Effectiveness in Petroleum Oil)
    • ISO 6743-13 (Metalworking Fluids Guidance)
    • Regulatory registration for REACH substances when used above threshold tonnage
    • Compliance with customer-specific acceptance criteria for automotive and aerospace sectors

    Typical usage ratio

    • Generally 0.1–1% w/w of fluid concentrate
    • Rate adjusted according to alloy protection requirements and customer field trial data

    Downstream process integration

    • Dispersed into base oils or water-phase carriers at the compounding stage
    • Monitored for homogeneity during mixing and post-blending QC
    • Systematically evaluated for compatibility with other fluid additives
    • Included in performance testing rounds for long-term protection benchmarks

    Final product types

    • Metal cutting and forming coolants
    • Temporary and long-term rust preventives
    • Protective coatings for storage and shipping
    • Lubricants formulated for high-precision machining

    4. Photographic Chemical Intermediate

    The compound sees specialized use in the manufacturing of certain silver halide photographic products, particularly as a nucleating agent and grain growth modifier in emulsion formulation. Downstream producers use it to tailor grain morphology, thus controlling image sharpness and sensitivity. Its addition is precisely timed and measured under controlled pH and temperature conditions to secure batch-to-batch reproducibility for professional imaging applications.

    Industry compliance standards

    • ISO 18901 (Imaging Performance of Photographic Materials)
    • DIN 10606 (Reagents and chemicals for photographic industry)
    • Internal quality management systems for photographic manufacturer specifications
    • Heavy metal and organic residue content controls (in line with RoHS for downstream electronics if integrated into imaging sensors)

    Typical usage ratio

    • Added at 0.05–0.4% w/w relative to the silver content in emulsion mixes
    • Exact proportion optimized through pilot scale trials based on required granularity and sensitivity

    Downstream process integration

    • Introduced at silver halide grain nucleation step
    • Maintains controlled reaction kinetics for desired physical properties
    • In-line QC through emulsion particle sizing and imaging performance testing
    • Residual analysis assures removal of unreacted intermediates before coating

    Final product types

    • Professional black-and-white and color photographic films
    • Specialty imaging plates for industrial radiography
    • Archival photographic papers
    • Instant imaging materials
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    Certification & Compliance
    More Introduction

    2-Amino-5-Ethyl-1,3,4-Thiadiazole: A Closer Look from the Manufacturer’s Floor

    Understanding What We Make

    We manufacture 2-Amino-5-ethyl-1,3,4-thiadiazole because of its reliability and performance in complex syntheses. Anyone working in fine chemical or pharmaceutical research has probably encountered a moment where small differences in purity or consistency set the stage for entire batches to pass or fail. From our side of the production line, every batch tells a story — a record of the precise temperatures, the pressure readings, and operator decisions that decide what you find in each drum or bottle. We know exactly what goes into building the right structure in this molecule, and why it matters as it moves downstream.

    Our Model: Built for Predictability

    We designate our product as 2-Amino-5-Ethyl-1,3,4-Thiadiazole, which might sound dry to the outsider. In-house, we track every run with lot codes, instrument printouts, and retention samples. For those in development or scale-up, the product’s chemical consistency means no surprises at the synthesis stage when introducing it as an intermediate. We have seen that precise melting points, solubility profiles, and clear spectral data keep projects moving rather than being held up in root-cause investigations. In practice, this is where our direct manufacturing knowledge pays off for researchers and process developers — less time lost to troubleshooting means more time spent building on reliable data.

    Why Purity Matters Beyond the Label

    A 2-Amino-5-ethyl-1,3,4-thiadiazole batch lacking a critical specification can throw off an entire sequence, or worse, lead to ambiguous analytical results downstream. Residual solvents, trace metals, or inconsistent performance in scale-up all stem from upstream control. Over the years, we have learned the hard way what happens if details like pH during work-up are overlooked. As manufacturers, we prep our reactors and QA labs for each run, aiming for clean NMR spectra and sharp HPLC peaks rather than vague “good enough” metrics. This attitude saves customers headaches, and we see feedback in the form of repeat orders from teams who previously battled with unreliable supply from dock-traders or relabelers.

    Usage: How Customers Use the Product

    Chemists use 2-Amino-5-ethyl-1,3,4-thiadiazole as a building block for more complex molecules. Over the years, customers described using it in stepwise syntheses for pharmaceuticals, especially heterocyclic compounds. Industrial researchers have pointed to its role in creating active pharmaceutical ingredients, veterinary drugs, and as a lead diversification tool in medicinal chemistry programs. This molecule’s structure allows for reactions such as nucleophilic substitutions, amide coupling, and even some cyclization strategies. The direct feedback we get shows that a smoothly reacting batch can mean the difference between a one-week or a three-week process, sometimes saving months in aggregate across teams. Many research teams now use our material to eliminate uncertainty in their experiments, sharing their experiences with the same excitement we feel when an approach works flawlessly.

    Differences from Commodity Supply

    Many in the industry have struggled with thiadiazole batches procured through opaque channels. We often hear reports of discoloration, inconsistent melting points, or “mystery” impurities that stall analytical methods. Our approach stands apart from these problems. As a manufacturer, we run full analytical panels on each lot — NMR, HPLC, melting point, water content, and elemental analysis form part of routine checks. Customers often remark about the clear difference these rigorous controls make, especially when switching from prior material to ours. Even subtle batch-to-batch differences found in lower-tier products can cause process drift or regulatory headaches; our protocols are designed to maintain consistency at scale, allowing downstream processes to roll smoothly from R&D to pilot to production. This reliability has been the main driver behind the demand for our product in both small and bulk deliveries.

    Learning from Production Experience

    Manufacturing thiadiazoles revealed pain points early on: inconsistent crystallization, solvent traces, and sensitivity to oxygen and humidity during certain process windows. Each production cycle is a lesson. Operators adapt by tightening environmental controls or refining solvent choices, and plant supervisors monitor for batch homogeneity with real-time data. By documenting each optimization, our teams preserve tacit knowledge that improves the next run. Inconsistent output rarely occurs now, as experience gives us an edge in anticipating where yield or purity might dip. This learned discipline transforms what could feel like routine production into a craft, with deep pride in the shape and purity of every kilogram that leaves our plant.

    Our Specifications Reflect Real-World Needs

    From the customer’s perspective, numbers tell the story: melting point, chemical assay, water content, and impurity profiles measured down to low ppm levels. We set specifications based on application feedback: researchers indicated that even 0.1% byproduct can wreak havoc on downstream syntheses or regulatory filings for drug developers. Each test we run ties directly back to an event we have seen in a customer’s lab or our own — from a pilot plant trial that succeeded due to a tight melting point range, to a multi-gram scaleup that failed because of overlooked ionic contamination. These moments drive an uncompromising approach to how we report and achieve real, usable purity.

    Traceability and Transparency: Built-In, Not Bolt-On

    The manufacturing flow for each batch gets documented in real time — reactors are charted by operator, date, and in-line QC data points. Material provenance and full batch paperwork follow the product through to shipping, allowing industrial QA teams to access underlying data without chasing down a third party. Customers running preclinical tox studies or validation batches ask for complete data packs, and because we control the process from raw material in to product out, we support traceability effortlessly. Nothing causes more regulatory pain than missing batch records, and we have seen competitors’ customers coming over after tired of this very issue. Our system grows from direct necessity: fewer gaps, fewer complaints, and a faster path to audit clearance.

    Manufacturing Ownership Means Control Over Change

    Owning the process end-to-end lets us act quickly when customer demands shift. A change in solvent regulation, new guidance about residual genotoxic impurities, or just feedback about downstream performance reaches our plant manager directly. This means modifications in production can happen with minimal delay: re-tuning process parameters, shifting purification steps, or deploying new testing protocols runs through a team built for agility. Our technical and production teams often visit customer labs, putting faces to names and collecting real stories about what works and what doesn’t. Real experience from both sides injects speed and insight into each update, making every new batch a little better than the last.

    Insight Into the Market: Why Direct Source Matters

    We watch market consolidation squeeze choice, as more players act as brokers rather than producers. Sourcing a specialty thiadiazole through four links in a chain rarely delivers consistent stock or direct answers to technical questions. Customers benefit by dealing directly with us, as someone who actually knows the reactor’s inner workings. We funnel field reporting straight back to the line, rather than filtering it through layers of intermediaries. This workflow closes the feedback loop, so each suggestion, problem report, or optimization inquiry creates real improvement across future batches.

    Stable Partnerships Grow on Trust and Performance

    Many of our long-term partners started with only a single order, sometimes after disappointing experience elsewhere. Success grows from repeated reliable performance: on-spec delivery, clear data, and a willingness to solve problems face-to-face. Years of supplying this and related compounds created a network of technical partnerships, where customer R&D teams invite our chemists to discuss new applications, synthesis challenges, or potential bottlenecks. Our support goes beyond the material manufactured; technical advice, tips for optimal storage, and hands-on process improvement form the backbone of most of these relationships. Our team lives these partnerships on the ground, in the plants and labs where real progress takes place.

    Differences Between 2-Amino-5-Ethyl-1,3,4-Thiadiazole and Other Building Blocks

    Many molecules fill similar “nodes” in medicinal chemistry or process chemistry schemes. Yet, 2-Amino-5-ethyl-1,3,4-thiadiazole stands out for its combination of reactivity, stability, and ease of incorporation into larger heterocyclic scaffolds. We often compare notes with customers about how closely related compounds behave under various conditions. Thiadiazoles substituted at the 5-position without the ethyl group frequently show less predictable solubility and may resist some transformations. Isomeric thiadiazoles, or those bearing halogens instead of ethyl or amino groups, present additional handling and safety restrictions. The product we make finds a place in applications requiring clean, high-yield reactions without the baggage of tricky byproduct profiles. From our vantage point, this molecular structure offers a sweet spot: stable enough for storage and transport, versatile enough to participate in nucleophilic attack, cyclizations, and derivatization for pharmaceutical leads.

    Supporting Solutions for Real-World Problems

    Problems arise that textbooks never capture: filter clogging due to particles invisible in bench trials, unexpected color changes halfway through a synthesis campaign, or low-level impurities impacting bioassays. As manufacturers, we work to solve these issues by running pilot reactions using current lots, adjusting crystallization protocols, or supplying alternate grades. We take pride in being able to offer technical troubleshooting, running real reaction sequences in our applications lab, and shipping additional documentation as needed. This is not theory — countless process improvements began as calls from a customer with a failed run, answered with hours on our end in the plant, brainstorming and hands-on troubleshooting.

    Field Feedback Shapes Our Development

    As a manufacturer, we build new product development cycles around the feedback loop provided by actual users of 2-Amino-5-ethyl-1,3,4-thiadiazole. Reports about scale-up bottlenecks, documentation gaps, or analytical anomalies get logged, reviewed, and addressed in process meetings. Product tweaks result from recurring themes — whether it’s an observed sensitivity to storage humidity, or a request to lower residual solvent content for use in regulated industries. By incorporating field data into both technical and batch-level decisions, each evolution in our process supports real, traceable improvements. Many customers return for additional projects because this cycle delivers directly on their needs, not a generic set of “features” invented without regard for practical use.

    Our Take on Sustainability and Compliance

    Navigating environmental and regulatory trends matters at the production level. Years of regulatory review taught us that tomorrow’s requirements rarely follow yesterday’s assumptions. We have adapted supply and waste handling streams as local and international requirements evolved, moving away from more hazardous solvents, substituting reagents for lower environmental impact, and investing in waste treatment on-site. Our operations team integrates compliance reviews with production control, closing off compliance risks before they morph into incidents or recall triggers. Years in the business taught us that a sustainable process is — above all — a controlled and predictable one, and this shapes every batch of thiadiazole we ship.

    Best Practices We Learned Over Time

    Long-term manufacturing taught us a few fundamentals: reagents need continuous quality review, reaction workup must be quick and thorough to prevent byproduct formation, and analytical confirmation stops headaches down the line. For thiadiazole synthesis, timing during purification and solvent selection marks the fine line between a high-yield batch and a write-off. All of these lessons came by facing the real-world consequences of shortcuts and learning — often painfully — what “good chemistry” looks like in practice, not just on the page. Our teams keep learning, finding minute ways to drive up yield, ease of handling, and simplicity of downstream cleanup, all while keeping safety as a constant focus.

    Commitment to the End User’s Needs

    People buying and working with thiadiazoles share a common goal: reliable building blocks, clear documentation, and responsive partners who know the product inside-out. From our production site, we meet those needs by combining hands-on manufacturing knowledge with an approach grounded in direct feedback and real-world problem-solving. New uses constantly emerge, whether in synthesis of emerging therapeutic classes, agroscience research, or industrial development pipelines. Our aim: deliver product that supports these needs straight out of the box, backed by people who made the material, not just moved it along a chain.

    Looking Forward

    Every new batch of 2-Amino-5-ethyl-1,3,4-thiadiazole reflects the collective experience of our team, as much as it does the requests and challenges of our customers. Technical partnerships drive quality up, and our record of production gives us confidence to meet new scientific challenges each year. The conversation keeps evolving, and real-world chemistry puts theory to the test at every stage. We invite ongoing dialogue, more feedback, and tougher syntheses — because mastery, on the shop floor and in the lab, comes from working alongside those who depend on what we make.