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Aminopyrazine

    • Product Name Aminopyrazine
    • Alias 2,3-diaminopyrazine
    • Einecs 210-137-7
    • 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

    768672

    Name Aminopyrazine
    Chemical Formula C4H5N3
    Appearance White to pale yellow solid
    Melting Point 123-126°C
    Boiling Point 321°C
    Density 1.26 g/cm3
    Solubility In Water Soluble
    Cas Number 504-29-0
    Pubchem Cid 9276
    Iupac Name pyrazin-2-amine
    Smiles C1=NC=NC=C1N
    Pka 3.9
    Storage Conditions Store at room temperature, dry place
    Hazard Statements May cause skin and eye irritation

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

    Packing & Storage
    Packing Aminopyrazine is packaged in a sealed 100-gram amber glass bottle with a screw cap, labeled with hazard and identification details.
    Shipping Aminopyrazine should be shipped in secure, airtight containers, compliant with local and international regulations for chemical transport. Label containers clearly with appropriate hazard warnings. Protect from moisture, heat, and incompatible substances during transit. Use secondary containment and cushioning materials to prevent breakage or spills during shipping. Handle and store in a cool, dry place.
    Storage Aminopyrazine should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from moisture, heat, and direct sunlight. Incompatible substances such as strong oxidizing agents should be avoided. Store at room temperature and ensure proper labeling. Use appropriate chemical storage cabinets, and avoid sources of ignition. Observe all relevant safety and regulatory guidelines.
    Application of Aminopyrazine

    Applications of Aminopyrazine in Industrial Manufacturing

    Aminopyrazine serves as a key intermediate in multiple chemical sectors, supporting precise synthesis requirements for pharmaceuticals, agrochemicals, materials science, and dyes. Our expertise ensures consistent supply and technical guidance for demanding industrial processes.

    1. Active Pharmaceutical Ingredient (API) Synthesis

    Aminopyrazine is essential in medicinal chemistry for the development of heterocyclic core structures in several APIs. Leading pharmaceutical manufacturers utilize this material as a building block for creating kinase inhibitors, anti-tumor agents, and antiviral compounds. The compound enters the synthetic route during early-stage heterocycle construction, requiring careful purity control and compliance with global pharmacopoeias throughout multi-step processes designed for high-yield and reproducibility. Our controlled manufacturing environment guarantees traceability from raw material intake to delivery for regulated drug production lines.

    Industry compliance standards

    • ICH Q7 (Good Manufacturing Practice for Active Pharmaceutical Ingredients)
    • USP & EP monograph adherence for relevant APIs containing pyrazine cores
    • FDA 21 CFR Part 210 & 211 for finished drug manufacture
    • ISO 9001 quality management system certification

    Typical usage ratio

    • 0.5–3.0 molar equivalents relative to main substrate, adjusted by specific route yield and intermediate purity demands

    Downstream process integration

    • Input at step 1 or 2 in heterocycle synthesis cascades
    • Entry to Buchwald–Hartwig amination or Suzuki coupling steps for late-stage substitution
    • Final purification by crystallization or preparative HPLC, yielding GMP-controlled intermediates

    Final product types

    • Targeted kinase inhibitors (e.g., oncology drugs)
    • Antiviral compounds for hepatitis or HIV treatment
    • Central nervous system drug intermediates
    • Final APIs containing aminopyrazine moieties

    2. Agrochemical Active Substance Manufacturing

    Aminopyrazine is widely adopted as a core intermediate within crop protection product synthesis, serving as a scaffold for herbicides and fungicides. Large-scale agrochemical productions integrate it into multi-step processes for structure-specific pyrazine derivatives, which increase selectivity for target species. Producers follow strict environmental, health, and safety protocols to minimize residual impurity levels and optimize reaction efficiency, typically coupling through diazotization or direct amination. Batch-to-batch uniformity is managed with comprehensive QC analytics on each delivered lot.

    Industry compliance standards

    • REACH registration in the EU for precursor chemicals
    • China National Standard GB 4839–2008 for agricultural chemicals
    • ISO 14001 for environmental management in large-scale production sites
    • OECD Good Laboratory Practice (GLP) for residue studies

    Typical usage ratio

    • 5–25% w/w of total precursor mass, depending on product line (herbicide vs. fungicide pathways)

    Downstream process integration

    • Initial amination of halogenated pyrazines
    • Condensation with carboxylic acids for selective activity levels
    • Final technical grade agrochemical formulation pre-packaging

    Final product types

    • Selective herbicides for cereals, rice, corn
    • Fungicides applied in fruit and vegetable protection
    • Pyrazine-based insecticides
    • Agrochemical technical concentrates for bulk trade

    3. Specialty Polymer and Resin Modification

    Aminopyrazine is used by specialty resin and polymer manufacturers as a comonomer for introducing nitrogen-rich functionality, enhancing flame-retardancy or surface energy in final materials. Industrial sites incorporate it into copolymerization processes, fine-tuning molecular weight and cross-link density for end-use requirements in coatings and advanced composites. Stringent monitoring of incorporation ratios and reaction exotherm are necessary to achieve reliable process scalability and minimize unreacted monomer content.

    Industry compliance standards

    • RoHS Directive 2011/65/EU for electrical applications
    • UL 94 test method for flame retardant rating in polyimides
    • ASTM D638 for tensile strength in resin composites
    • ISO 17025 certified laboratory analysis for polymer blends

    Typical usage ratio

    • 1–10 mol% relative to main co-monomer; precise rate set by required mechanical or flame-retardant properties

    Downstream process integration

    • Direct inclusion in pre-polymer reaction vessels
    • Blending prior to extrusion or molding steps
    • Batched for copolymer synthesis under controlled heat cycling

    Final product types

    • High-performance polymer films
    • Engineering resins with modified dielectric properties
    • Flame-retardant circuit board laminates
    • Coatings for aerospace or electronics sectors

    4. Dye and Pigment Intermediate Production

    Manufacturers in the specialty dye and pigment industry employ aminopyrazine as a coupling agent or modifying component. It introduces color-fastness and stability to synthetic dyes for textile and digital printing. Integrating it into diazo or azo dye synthesis requires real-time process monitoring to control shade intensity and solubility features. Quality teams perform in-process checks for impurity profile and batch coloration before shipping to downstream formulation plants for end-use blending.

    Industry compliance standards

    • Oeko-Tex Standard 100 for textile chemical residues
    • EN 71-3 for pigment use in toys and consumer products
    • China GB/T 23982–2009 standard for colorants
    • ISO 787/2 for pigment testing procedures

    Typical usage ratio

    • Variable: 2–15% of total dye or pigment mass, tuned to application-specific color depth and lightfastness

    Downstream process integration

    • Used during diazotization coupling for azo dye synthesis
    • Added in pigment precursor feed during high-shear mixing
    • Refined via multi-stage filtration and drying before blending to final formulation

    Final product types

    • Synthetic textile dyes (direct and reactive types)
    • Digital print ink pigments
    • Industrial paints and coatings colorants
    • High-purity dye intermediates for export and further synthesis
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    Competitive Aminopyrazine prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Aminopyrazine: A Chemist’s Perspective From Inside the Production Plant

    From the Reactor Floor: What Aminopyrazine Means to Us

    Stepping into the plant each morning and hearing the low rattle of reactors, we know aminopyrazine is going to be in demand. Over the years, this compound has played a big part in bridging research and industrial-scale synthesis. For our team, aminopyrazine isn’t just a stock code or a processed batch sheet. It’s a direct result of fine-tuned chemistry, strict process controls, and hands-on experience developed across dozens of campaigns. Sometimes production chemistry feels like a tug-of-war—balancing purity, yield, and throughput. Aminopyrazine tests those lines because its applications put pressure on every parameter from crystal habits to handling.

    Product Identity and Model Details

    Our aminopyrazine, typically offered in a technical grade that surpasses 99.5% purity, is not sourced from outside. The molecule’s structure—two nitrogen atoms on a pyrazine ring with an amino group—makes it unique in reactivity and selectivity. While some will focus only on formal chemical specifications, we have learned that batch-to-batch reproducibility makes or breaks projects downstream. We use a standard model with a tightly controlled synthesis route, which keeps trace metal content and residual solvents below detection. Customers in pharmaceutical research value this difference: when false positives can derail weeks of screening work, reliable contaminants data is crucial. The physical characteristics of aminopyrazine—fine, pale powder, minimal clumping, low residual moisture—aren’t just checkboxes for us, they reflect our hands-on understanding of how researchers weigh and dissolve it every single day.

    Why Consistency Matters in Synthetic Chemistry

    On the plant floor, the meaning of ‘consistency’ changes from the promise of a data sheet to the reality of hundreds of reaction vessels. Synthesizing aminopyrazine isn’t a one-pot, one-skill operation. It’s the byproduct of dozens of refinements: tighter solvent purifications, reactor cleaning, a continual push to minimize side products. Through experience, we’ve noticed that minor shifts—a change in heating rates or an unnoticed batch of reagents—can have amplified effects on purity or filtration times. These aren’t academic distinctions. One year, a slight increase in unidentified impurities hit a customer’s process development group, causing headaches for downstream purification and formulation. After careful root-cause work, we had to adjust reagent sourcing and drying protocols, which reminds us that every step counts.

    Main Areas of Use: Industrial and Research Applications

    Most aminopyrazine leaves our facility bound for advanced intermediates and building blocks. In pharmaceutical discovery labs, chemists use it to build a core structure for kinase inhibitors, anti-infectives, and other heterocyclic drugs. Our technical feedback often comes from teams running high-throughput screens, where trace contaminants trigger false positives or complicate mass-spectrometry analysis. Aminopyrazine shows up in crop protection, too—helping invent new fungicides and herbicides that protect food supplies at the molecular level. Our plant has also supplied it to electronics research, where its aromatic stability and N-heterocycle structure allow new developments in optoelectronics and organic semiconductors. Each segment puts different pressure on the product—drug development pushes for the lowest metals, while electronics research scrutinizes trace organic contamination.

    Many projects put aminopyrazine through transformations—acylation, halogenation, metallation. The molecule’s reactivity at the amino group, paired with the electron-deficient ring structure, gives rise to high-yield routes to more complex intermediates. With other products you might get away with broader impurity profiles, but our customers’ applications for aminopyrazine demand clarity. Because our synthesis is geared for minimal secondary amine content, our batches avoid complications in those delicate downstream reactions.

    Handling Under Real Process Conditions

    There’s a temptation to describe materials in terms of their theoretical stability or “shelf life.” In reality, aminopyrazine is sensitive to humidity and airborne contaminants. If left open, it will clump or pick up odors rapidly—especially on warm or wet days in the packing hall. Our operators store the batches in double-lined containers, moving them quickly from the crystallization finishes into nitrogen-purged packaging rooms. For large-scale users, we offer direct filling into customer-provided steel drums with custom liners. This isn’t only for show; years ago, an unsealed lot suffered moisture pickup that led to sluggish dissolving and extra filtration steps. Lessons like that don’t come from textbooks. They come from long shifts, careful protocol reviews, and learning from small but real problems.

    What Sets Our Aminopyrazine Apart?

    Not every aminopyrazine on the market comes from a direct producer. Some is repackaged or relabeled several times before it reaches a lab bench or reactor. By making the product ourselves, we control raw material quality and confirm every batch before release. Every large vessel run is tested for residual solvents using headspace GC and for elemental content using ICP-MS. Our analytical team runs spot-check LCMS screens to look out for emerging impurities—something that’s become increasingly important with new quality regulations from pharmaceutical buyers.

    Over the years, we have invested in recycling solvent streams and implementing closed-system crystallizations. By staying close to the process, our technical team catches subtle shifts—small color changes or unexpected particles that could otherwise go unnoticed. Changing a filter paper grade or tweaking seed addition timing often makes a difference only visible at full scale. For regular clients, we offer historical COA comparisons so they can track impurity trends and make informed decisions about lot selection.

    Working With Aminopyrazine: From Synthesis to Utilization

    Chemists who order aminopyrazine for the first time usually want to know how it performs in condensation and cross-coupling reactions. We ran our own developmental chemistry alongside full-scale manufacturing. Direct feedback from lab benches—solubility in DMSO, tendency to plate on glassware, dissolution rates in various polar solvents—guided changes in particle size targets and drying endpoints. Delivering a product that weighs out cleanly without caking means less loss per batch and less frustration at scale.

    Some users focus on analytical backgrounds—LC, NMR spectra, and trace impurity signatures. Because our process rarely produces methylated side products, chromatographic backgrounds on our aminopyrazine lots stay clean. Pharmaceutical R&D users have reported sharper peaks and easier mass balance work, which shortens their purification timelines downstream.

    Differences From Other Available Products

    The market offers aminopyrazine from many sources, but not all batches behave the same in a process reactor or an automated laboratory. Material that has been stored improperly or traveled too long can show color changes, strange odors, or crystallize in forms with poor solubility. Once, we tested competitor samples for a partner and found nearly double the dry weight loss after storage, suggesting improper handling after production. Others may advertise matching chemical formulas but lack stringent polymorph or moisture content testing, which can sneak up on high-throughput work with poor dissolution and unreliable assay results.

    Taking direct responsibility for synthesis and quality control gives us a level of confidence that breaks through in technical troubleshooting. If a user flags unexpected NMR shifts or batch-to-batch variability, we have full traceability to production logs, raw material certificates, and environmental monitoring records. This traceability saves time for formulators and research teams. A few years back, an R&D group saw false low-yield results in their amide coupling workflow. Our technical troubleshooting connected the dots: a competitor’s aminopyrazine held up water that hydrolyzed the downstream reactant. Switching to our lot resolved the issue, highlighted by their own analytical results.

    Sustainability, Waste Reduction, and Worker Safety

    Every process step—from feedstock delivery to packaging—runs against a backdrop of increasing environmental expectations. We’ve pushed to close solvent loops, minimize amine emissions, and reduce water usage per kilogram of product made. Purification protocols maximize recovery and minimize hazardous byproducts. Our safety data sheets reflect the reality of working inside the plant, not just theoretical regulatory mapping. On a person-to-person level, workers have implemented continuous air monitoring and improved personal protective equipment, especially as new research comes out about chronic low-level exposures.

    Minimizing unsafe work zones during unloading and mixing has led to fewer reportable incidents. Lessons learned from past injuries—be they minor chemical burns or glove permeability—are incorporated into ongoing safety meetings and updated signage. Raw material selection considers not only price or availability, but end-of-life management, simplified waste stream management, and worker comfort. Our front-line employees bring practical perspectives from decades spent handling reactive organics—so the protocols and controls we use aren’t just compliance exercises.

    Understanding the Customer’s Process: Practical Support Matters

    Over half our inquiries start with discussions that have nothing to do with standard specifications. Users want to review crystallization forms, batch histories, and solvent compatibilities. Long-term partnerships rely on trust and transparency; we don’t hide batch deviations or brush new impurities under the rug. Each customer’s process looks slightly different. Some are scaling a medicinal chemistry hit to kilogram lots, others are laying groundwork for commercial process validation. We support that flexibility with samples, technical data, and real process feedback.

    We’ve shipped aminopyrazine to over twenty countries, encountering a wide range of documentation needs. Customs and regulatory bodies often request expanded certificates—down to trace metals and detailed impurity ID, which we accommodate by keeping archived analysis going back several years. Feedback from downstream users—especially those scaling up for the first time—gets relayed back to process engineers. Communication works best as a two-way street. Suggestions from busy analytical labs or production chemists improve how the next lot is made. This practical dialogue isn’t optional in a world of high-value, high-scrutiny chemicals, and it gives us insight into trends appearing in end markets.

    Staying Adaptable to Research and Production Trends

    Every production cycle brings new research angles or regulatory requirements. Pharmaceutical trends now demand lower and better-defined extractables and leachables for excipient-use aminopyrazine. Fine-tuning purification, updating documentation, and supporting new impurity profiles keeps aminopyrazine batches in line with those changing needs. In agriculture, actives based on aminopyrazine structures shift as resistance pressures vary in the field—calling for new derivatives or process tweaks in the synthetic pathway, which usually get prototyped here in our pilot suite before scale-up.

    Research groups working on OLEDs or organic field-effect transistors now look for aminopyrazine free from photo-reactive contaminants. We’ve responded by installing new inline analysis during production and collaborating with university partners for advanced purity profiling. Experience says that the most robust production environment leans heavily on problem-solving and readiness to update legacy processes.

    Challenges Behind the Scenes

    Scaling aminopyrazine from pilot to full plant scale carries its own headaches. Maintaining close temperature gradients and efficient gas handling avoids byproduct formation. We’ve refined our processes—introducing staged additions, in-process filtration, and improved process control systems. Outgassing or emissions challenges are real, especially as regulators tighten plant-site VOC limits. Our investment in thermal oxidizers and scrubbing units not only meets these rules—it protects workers and neighbors, delivering confidence in safe plant operations.

    In the broader market, price spikes for raw reagents impact the bottom line. We’ve absorbed a lot of volatility by developing multiple sourcing options and holding reserve stocks on-site. No system is immune from disruption, but close links to raw material suppliers and a hands-on approach to risk management has kept our aminopyrazine lines flowing when others had to suspend shipments.

    Supporting Documentation, Traceability, and End-User Assurance

    Growing scrutiny around trace metals and elemental impurities—pushed by ICH Q3D and other regulations—means we’ve adopted ICP-MS screening as a quality assurance matter of course. Support teams issue impurity profiles with every lot, and we frequently assist clients in validating aminopyrazine for upstream API or generics registrations. By conducting extensive stability and requalification testing, we provide the evidence needed for regulatory audits, not just for our direct customers, but their partners further down the value chain.

    We prioritize transparency in documentation, supplying archived data on request. Some of our longest-standing customers built their own internal libraries of lot specifications and performance notes, tracking changes over months and years. Our staff works closely with pharmaceutical and agricultural regulatory affairs groups, supporting submissions with up-to-date impurity trending and technical explanations—not boilerplate text but firsthand process details, showing confidence in what leaves our plant.

    Looking Toward the Future: Continuous Improvement in Production

    Better aminopyrazine doesn’t come from standing still. Ongoing investment in process intensification, waste minimization, and analytical tooling keeps quality moving forward. Process engineers spend time on the floor, listening to operators, collecting performance feedback, and trialing new process steps. Our research team regularly explores alternative synthetic routes—comparing yields, cost, environmental releases, and downstream processability. Failures make as big an impact as successes; they direct our efforts to where improvement is most likely.

    By staying connected with both front-line operators and technical users, we keep aminopyrazine relevant for new markets and trustworthy in established uses. We take pride in making a product that supports both groundbreaking research and robust manufacturing. The reality of making and delivering aminopyrazine is far more than chemistry; it’s a mix of experience, communication, and old-fashioned attention to the small details that matter most on the bench, in the lab, and out in the field.