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2,5-Dimethyl Pyrazine

    • Product Name 2,5-Dimethyl Pyrazine
    • Alias 2,5-Dimethylpyrazine
    • Einecs 211-221-8
    • 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

    876035

    Chemicalname 2,5-Dimethyl Pyrazine
    Casnumber 123-32-0
    Molecularformula C6H8N2
    Molecularweight 108.14 g/mol
    Appearance Colorless to pale yellow liquid
    Boilingpoint 170-172 °C
    Meltingpoint 6 °C
    Density 1.027 g/cm3 at 20°C
    Solubilityinwater Slightly soluble
    Flashpoint 57 °C
    Odor Nutty, roasted, earthy
    Refractiveindex 1.515
    Vaporpressure 1.35 mmHg at 25°C
    Logp 1.19
    Unnumber NA

    As an accredited 2,5-Dimethyl Pyrazine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 2,5-Dimethyl Pyrazine is packaged in a 100 mL amber glass bottle with a secure screw cap for laboratory use.
    Shipping 2,5-Dimethyl Pyrazine is shipped in tightly sealed containers to prevent leakage and contamination. It should be stored in a cool, dry, and well-ventilated area, away from incompatible substances. During shipping, compliance with local, national, and international regulations for hazardous chemicals is required to ensure safety and environmental protection.
    Storage 2,5-Dimethyl pyrazine should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from sources of ignition, heat, and direct sunlight. Keep it separated from strong oxidizers, acids, and incompatible substances. Ensure proper labeling and access only to trained personnel. Use appropriate precautions to minimize exposure to vapors or spills.
    Application of 2,5-Dimethyl Pyrazine

    Applications of 2,5-Dimethyl Pyrazine in Industrial Manufacturing

    2,5-Dimethyl pyrazine is widely used as a high-impact flavor and aroma compound across regulated food and specialty chemical industries. As a direct manufacturer, we supply this material for controlled incorporation in multiple downstream markets requiring strict compliance, precise dosage calibration, and robust batch traceability processes.

    1. Food Flavoring Formulations

    Food additive manufacturers utilize 2,5-dimethyl pyrazine to impart roasted, nutty, and cocoa-like notes to sweet and savory formulations. The chemical integrates as a characterizing aroma precursor within compound food flavors for bakery, confectionery, snack, and beverage sectors. Flavor chemists evaluate stability during Maillard reactions and monitor sensory thresholds to align with global safety and labeling guidelines through validated quality assurance systems.

    Industry compliance standards

    • FAO/WHO Codex Alimentarius (GSFA for flavoring substances)
    • EU Regulation No 1334/2008 (Flavourings and Certain Food Ingredients)
    • US FDA 21 CFR 172.515 (Synthetic Flavoring Substances and Adjuvants)
    • China GB 2760–2024 (Standard for Food Additives)

    Typical usage ratio

    • 0.05–1.0 mg/kg in finished food; precise level guided by sensory threshold in each matrix
    • Usage adjusted by product type, regional taste preference, and regulatory maximum permitted limits

    Downstream process integration

    • Dosed into pre-mix blending with flavor bases
    • Added post-cooking or in spray-dried flavor encapsulates
    • Tracked by batch-level QC and flavor release profiling

    Final product types

    • Baked goods (biscuits, cookies, wafers)
    • Chocolate and cocoa-based confectionery
    • Savory snacks (crisps, extruded products)
    • Ready-to-drink coffee and nut-flavored beverages

    2. Tobacco Flavor Manufacturing

    The tobacco industry incorporates 2,5-dimethyl pyrazine as an aromatic top-note enhancer in cigarette, cigar, and pipe tobacco blends. Blenders select this molecule to increase complexity and mimic the aromatic profile developed during tobacco curing. Stringent analysis ensures levels remain within international safety margins for inhalable products, and the compound is subject to proprietary flavor mixture audits and established toxicological validation protocols.

    Industry compliance standards

    • ISO 10939 (Cigarettes—Determination of total and nicotine-free dry particulate matter)
    • EUTPD (European Union Tobacco Products Directive 2014/40/EU)
    • US FDA PMTA requirements (Premium flavor safety review)
    • China GB/T 23356–2009 (Tobacco—Testing of tobacco additives)

    Typical usage ratio

    • 3–50 ppm in final tobacco blend; flavor house typically defines upper limit by toxicology and sensory evaluation

    Downstream process integration

    • Blended into concentrated flavoring liquids or directly sprayed onto cut tobacco before final blending
    • Stability verified during curing, storage, and combustion profile validation

    Final product types

    • Manufactured cigarettes (regular and premium lines)
    • Pipe tobacco, cigar filler blends
    • Heat-not-burn (HNB) product capsules
    • Shisha and chewing tobacco compositions

    3. Pharmaceutical Aroma Standardization

    Pharmaceutical aroma houses use 2,5-dimethyl pyrazine as an analytical reference and aroma modifier for masking or modifying the sensory profile of oral and nasal drug products. It assists in palatability improvement for bitter actives and supports compliance with regional pharmacopeia flavoring restrictions. Analytical purity and trace contaminant control are enforced from bulk tank to finished excipient blend, supported by validated documentation and lot-level analytical release results.

    Industry compliance standards

    • United States Pharmacopeia (USP Excipient Monographs on Flavors)
    • European Pharmacopoeia (Ph. Eur. 5.2.6, organoleptic excipients)
    • ICH Q3A/B (Impurity Control in Drug Substances/Products)
    • Good Manufacturing Practice (GMP) EU 2015/995

    Typical usage ratio

    • 0.1–0.5 mg per unit dose, typically under 0.01% of total formulation depending on medicinal product type and route of administration

    Downstream process integration

    • Dosed during liquid or suspension flavor excipient pre-blend
    • Integration validated via HPLC and GC-MS for traceability and homogeneity
    • Used as primary or secondary aroma in multi-flavor masking systems for pediatric or geriatric applications

    Final product types

    • Oral liquid pharmaceuticals (syrups, elixirs, suspensions)
    • Nasal spray aroma excipients
    • Pediatric chewables and dispersible tablets
    • Orodispersible stimulants and lozenges

    4. Aroma Chemicals for Pet Nutrition

    Specialty manufacturers of palatants and pet food flavors incorporate 2,5-dimethyl pyrazine to replicate roasted meat or nutty taste in premium dry and wet pet foods. Pet food flavorists calibrate addition rates depending on animal species, target feeding behavior, and product storage conditions. Certification programs enforce compliance with animal feed safety, and HACCP-based production workflows track cross-contamination and ingredient origin for domestic and export markets.

    Industry compliance standards

    • AAFCO (Association of American Feed Control Officials—Feed Ingredient Definitions)
    • EU Regulation (EC) No 1831/2003 (Animal Feed Additives)
    • FAMI-QS (Quality and Safety System for Specialty Feed Ingredients)
    • ISO 22000:2018 (Food Safety Management Systems in Feed Manufacturing)

    Typical usage ratio

    • 0.2–2.5 ppm in finished feed, optimized by flavor palatability trials with companion species
    • Adjusted for dry, semi-moist, or canned product bases

    Downstream process integration

    • Incorporated via top-coat spraying on extruded kibble or wet blends before canning
    • Dosed in palatant concentrates during final flavor mixing
    • QA confirms uniform coverage and flavor stability under accelerated shelf storage

    Final product types

    • Premium extruded dog and cat foods
    • Palatant-coated treats and snacks
    • Wet pet food cans and pouches
    • Flavored feed additives for specialty pets (ferrets, rabbits)

    5. Specialty Aroma Ingredients for Fragrance and Air Care

    Producers of specialty fragrance blends and home air fresheners apply 2,5-dimethyl pyrazine as a unique top note for complex, smoked, or roasted aromatic accords. Perfumers calculate addition rates based on volatility and diffusion balance in both oil-based and water-based delivery systems. Quality assurance teams control batch-specific purity and alignment with "natural-likeness" preferences for personal care and environmental scenting regulations.

    Industry compliance standards

    • IFRA Standard (International Fragrance Association Restriction Guidelines)
    • EU Cosmetics Regulation (EC) No 1223/2009
    • US TSCA Inventory for Fragrance Ingredients
    • REACH Regulation (EC) No 1907/2006 Registration

    Typical usage ratio

    • 0.01–0.2% by weight in fragrance composition, adjusted according to application (air care, personal care, or household formulations)

    Downstream process integration

    • Added to high-shear oil blending tanks or emulsion pre-mixes
    • Volatility and release curve tested during stability trials and product evaporation simulations
    • Ensured IFRA and regional compliance before customer release

    Final product types

    • Air care sprays and gel-based air fresheners
    • Candle top notes and scented wax melts
    • Room diffusers and car fresheners
    • Fine fragrances with gourmand, roasted, or smoky olfactory themes
    Free Quote

    Competitive 2,5-Dimethyl Pyrazine prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    2,5-Dimethyl Pyrazine: Chemistry Rooted in Experience

    Background, Model, and Experience

    At our manufacturing site, certain compounds stand out for their reliability, performance, and diverse application. 2,5-Dimethyl Pyrazine remains a consistent choice in many specialty chemical portfolios. Over years of direct production and refinement, we've worked through the nuances that matter most—not just to chemists, but to downstream users handling each drum or kilo. Our direct synthesis route yields material that matches expectations batch after batch, minimizing surprises for formulators and quality labs alike.

    Every time we tap a reactor for 2,5-dimethyl pyrazine, precision matters. Trace solvents, unwanted side products, and high moisture invite headaches during downstream processing, especially in food flavors, fragrances, agrochemical intermediates, or functional resins. We operate with clear targets for GC purity, typically exceeding 99.0%. Odor profile and consistency stand under constant scrutiny, as these two points define product success in real-world scenarios. The model we follow leverages decades of technical feedback, which feeds directly into process controls.

    We draw on closed-loop systems and in-process checks to make sure no residual ammonia or nitrogenous byproducts linger. This work pays off when customers no longer need to triple-test the same lot or rework blends. Nobody likes wasting time on avoidable quality issues, and that’s where experience makes a difference. As a chemical manufacturer, we've seen firsthand how small lapses in upstream controls ripple through the entire supply chain.

    Why 2,5-Dimethyl Pyrazine Matters

    Markets have moved beyond basic flavoring agents and functional additives—today’s end uses cover everything from specialty aromas and food flavor builders to advanced electronics, working as trace-level modifiers in polymer systems. Through each evolution, 2,5-Dimethyl Pyrazine has held ground because of its stable performance and pleasing organoleptics at remarkably low concentrations.

    Our regular feedback loop involves direct conversations and lab visits with R&D users who want to solve specific formulation puzzles. They talk about how critical it is to avoid off-notes in complex flavor matrices. A batch that picks up metallic overtones or trace earthy off-smells can upend a project. That’s not a theoretical risk—we've fielded urgent requests to troubleshoot such customer challenges. Feedback like this directly influences small but crucial adjusts in temperature ramps, catalyst ratios, and purification techniques on the plant floor.

    2,5-Dimethyl Pyrazine attaches to the aromatic backbone through its labeled methyl functionality, bridging challenges between volatility and thermal stability. Some users in flavor chemistry point to its buttery, nutty properties as the one lever that rounds out flavor notes in chocolate, bakery products, or roasted coffee. Others in the fragrance world appreciate its unique balance—neither too sharp nor overwhelming at trace levels. These nuanced requirements drive us to reach higher analytical benchmarks.

    Distinguishing Facts and Specifications

    Too many products on the market carry the same generic label but show wild swings in performance. Our production approach considers several dimensions at once: purity by gas chromatography, residual solvent testing, water content by Karl Fischer, and specific sensory attributes.

    A lot produced under variable temperature or with incomplete catalytic conversion leads to unpredictable impurity profiles. We’ve learned (sometimes the hard way) that the control of these factors matters more than any one-off laboratory guarantee. We monitor intermediate and final lots for markers like 2-methyl pyrazine, 2,6-dimethyl pyrazine, and other close isomers that, while minor in quantity, can become major headaches for high-spec applications. Customers, especially in food and pharma environments, share stories of regulatory flags tied to non-core isomers, so this extra layer of scrutiny from our QA department isn’t just about paperwork—it’s about real-world compliance.

    Specifications on our regular 2,5-Dimethyl Pyrazine range cover purity above 99.0% (GC area normalization), moisture under 0.2%, absence of strong foreign odor, and consistent visual physical form. Each batch receives a certificate of analysis, signed off by our QC staff after both instrumental and sensory panel checks. Instead of chasing the lowest cost, our operation targets repeatability. Years of supply history with demanding partners have proven that consistency saves money long term.

    Color sometimes drifts if storage barrels pick up oxygen or UV exposure. We've learned to keep packaging light-tight and run regular retests during warehouse storage. A customer in food aromas once flagged subtle color shifts as a root cause for batch rework, so now we take no chances—integrating this small detail has prevented product returns and frustration.

    Real-World Uses and Lessons Learned

    Technical documentation can list wide application ranges, but actual demand for 2,5-dimethyl pyrazine comes from a few core motivations. Flavor houses favor it for chocolate, nut, cereal, roasted, and bakery notes where a genuine, round profile beats synthetic bluntness. Beverage makers rely on it for subtle, persistent aromas. Some find value adding tiny amounts to snack coatings, heat-processed foods, and enhanced plant proteins to convey a better natural perception.

    We support users who run large-batch compounding as well as those developing small, high-value projects. Each group brings unique technical feedback. Large-scale users want tight timelines and minimal lot-to-lot variance. Small innovators focus on batch customization and rapid adjustments. Listening to both types has prompted us to create flexible production runs and responsive laboratory support for flavor-lab trials.

    Our technical services team works alongside product development labs. Over the years, we've fielded questions on the behavior of 2,5-dimethyl pyrazine in varied matrices: baked, extruded, liquid, or emulsified products. Users share challenges with volatility in high-heat or high-shear environments. We share their focus on thermal stability and have fine-tuned our process to eliminate volatile traces or byproducts that could degrade under those processing conditions.

    Some customers want specifics about trace metals or cross-contamination. We don’t take these queries lightly. Multi-stage cleaning and validated equipment changeover schedules are standard in our production calendar, not just for compliance, but because experience has shown these precautions protect all parties from product liability and quality issues.

    Differentiation from Other Pyrazines and Related Chemicals

    The pyrazine family includes a lineup of close cousins—2-methyl pyrazine, 2,3-dimethyl pyrazine, 2,6-dimethyl pyrazine, and beyond. Each features distinct chemical and sensory properties that affect performance and acceptability for food or technical uses.

    We regularly receive requests for comparisons. For customers seeking chocolate or roasted nut notes without harshness, 2,5-Dimethyl Pyrazine has an ability to avoid sharp, green, or earthy tones that heavier isomers or less pure manufacturers sometimes contribute. In past years, processors tried substituting with more readily available isomers, only to introduce noticeable off-notes. Repeat blends using our material have shown long-term batch stability and acceptance with regulatory authorities due to the documented impurity profile and proven traceability.

    Downstream formulators often share the difficulty they face when switching between related compounds. The differences between 2,5- and 2,3-dimethyl pyrazine seem minor on paper but matter when the product reaches a consumer’s palate or nose. Trial and error with multiple sources—some inconsistent, some carrying unknown balance of co-products—led several partners to return to our supply after multiple rounds of troubleshooting.

    Another frequent question touches on price-performance tradeoffs seen in bulk regional varieties. Our stance is simple: reliability and purity offset the real cost that comes from downstream rework, wasted inventory, poorer shelf-life, or regulatory rejections. Our process oversight, from raw material auditing to final packaging and stability checks, reflects a philosophy learned through decades of feedback—narrowing specification bands outpaces chasing short-term, lowest-quote alternatives.

    Several product managers in large flavor houses share insights about formulation scale-up errors. In one case, a switch from 2,5-dimethyl pyrazine to a cheaper isomer led to a flagged sensory difference and negative market response—an expensive lesson. This story has replayed enough times that our technical staff now sits in on customer development meetings, offering direct commentary on feature and behavior differences, not just paperwork or technical sheets.

    We’ve optimized our production lines to deliver on two parallel tracks: high-volumes for stable users and smaller, customized shipments for labs pilot-testing blends. The flexibility in packaging—from bulk containers down to specialty sample vials—grew out of requests from R&D users struggling with too-big, too-slow shipments from generic suppliers. Our manufacturing scale means we adapt batch sizes to current market needs without compromising consistency.

    Supporting Facts and Product Handling

    Quality control teams in downstream labs tell us how critical sampling technique, storage conditions, and even container headspace can be. Once, a series of customer complaints about ‘fade’ or loss of aroma on opening a fresh drum led us to audit the packaging supply chain. We discovered that even small leaks or oxygen ingress shift the sensory profile over weeks. Our switch to individually nitrogen-flushed, tight-seal drums, implemented years ago, closed the gap and prevented further problems.

    Based on hands-on storage trials in our own warehouse, we recommend keeping unopened 2,5-dimethyl pyrazine containers in cool, dry, and shaded areas, ideally with secondary containment for humidity protection. We noticed that neglecting these basics invites moisture uptake, creating unnecessary reactions and problems. No costly laboratory solution can replace proper storage discipline, and we stress this point with every shipment.

    On the production side, routine plant audits highlight how minor changes—sieve pack replacement, improved nitrogen purging, tailored cleaning cycles—result in measurable improvement on each finished batch. Regulatory inspectors visiting the plant have commented on our document trail, but our best benchmark is the feedback—both positive and critical—that comes back from the field.

    Technical literature sometimes glosses over the downstream impact of co-packaged compounds, cross-contamination, or mixed dispatches. Our approach calls for full physical separation between pyrazine product lines, using dedicated transfer hoses and pumps, avoiding any overlap that could show up as taint or subtle adulteration. Direct conversations with plant engineers from food and pharmaceutical clients taught us the importance of single-use workflows for allergen and cross-contact risk.

    The Path Forward

    Markets, regulations, and technology keep evolving, but direct, transparent manufacturing relationships outlast shifting trends. Over the past decades, 2,5-dimethyl pyrazine supplied from our lines has navigated new applications, international audits, and adaptation to higher analytical standards. Each production cycle brings new challenges—raw material volatility, requests for ever-lower impurity thresholds, and the demand for non-GMO certifications.

    Several major clients working on plant-based protein analogues rely on our pyrazines to overcome grassy, beany, or bitter off-notes. We iterated production processes to provide traceability for allergen-free labeling and clean-paneled declarations, sometimes tuning batch runs to satisfy trace analysis methods from global regulatory agencies. Direct collaboration between our production chemists and customer R&D has simplified issue resolution more than any amount of paperwork ever could.

    We’ve taken steps to locally source greener, renewable precursors where practical, investing in catalytic recycling and waste minimization. These steps don’t stem from marketing pressure but from upstream realities—supply chain resilience, lower transportation risk, and better control over variability. In one case, a regional disruption in chemical feedstocks threatened lead times. Our ability to ramp production from multiple approved sources kept promised delivery schedules on track.

    Sustained supply depends on process reliability and honest communication. We offer live sample matching, technical troubleshooting, and, where necessary, blend optimization consultation to new and established customers. The technical staff who manage production and QA also handle field inquiries. Over time, this approach has trimmed the lag between question and answer, fostering trust that makes formula changes or regulatory shifts easier to address.

    Handling regulatory, logistics, and documentation challenges for pyrazines is increasingly complex. Our registration work with international agencies—EU, China, Southeast Asia—comes from granular familiarity with local rules, not desk research. We’ve learned to build documentation to withstand scrutiny by any food safety or customs inspector. Trace origin, cross-contamination prevention, and batch-specific compliance data travel with every outgoing shipment, giving our customers confidence to run their own lines at full speed.

    Continuous Improvement: Insights From Manufacturing

    Internal improvement never stops. Some years ago, production runs of 2,5-dimethyl pyrazine seemed stable until a subtle, sporadic off-note cropped up in a downstream food application. Digging into the details, we found a small drift in a filtration step had allowed trace carryover of an upstream process aid. By reworking filter protocols, the off-note disappeared, and customer complaints halted for good. This wouldn't have surfaced without an open line to formulation chemists who care about final performance.

    Engineering teams are encouraged to report near-miss incidents, minor process anomalies, and even seemingly routine deviations. Sharing these details keeps the environment transparent and prompts tweaks that improve both safety and product outcomes. Quarterly cross-department meetings led to insights that improved yield, cut rework rates, and trimmed batch cycle times—creating benefits we pass along as more predictable deliveries and fewer technical disputes.

    We’ve experimented with modular automation upgrades—automatic dispensing, digital process tracking, and in-line moisture analysis. The goal remains practical: more consistent quality, less time spent remediating out-of-spec product, and a workforce freed up for higher-value problem-solving. Each year, new investments balance hard-earned experience with emerging technologies from process controls and data science.

    Technical Support and Market Alignment

    Connecting manufacturers and customers requires active problem-solving, not just data exchange. Our technical team supports pilot trials, suggests dosage ranges, and investigates process divergences. One food group flagged a recurring appearance of unexpected volatile peaks in their high-heat extrusion line. Collaborative troubleshooting identified a small, heat-unstable impurity in a prior supplier's material, which our in-process controls already eliminate. Simple sharing of chromatograms gave that customer faster resolution than months of solo testing.

    Flavor application specialists sometimes ask about the long-term storage and aroma-retention properties of 2,5-dimethyl pyrazine in fat-rich or protein-heavy food. We continue updating our own storage and stress-testing programs, publishing key data that support customer claims through real results rather than theory. This includes paired panel testing, time-to-fade studies, and direct cooperation with customer sensory panels.

    As food trends shift toward plant-based, clean label, and EU-compliant formulations, we’ve transitioned labeling and documentation to align with evolving regulatory frameworks. People making decisions about procurement and formulation care deeply about outcome integrity, and lengthy experience making, auditing, and shipping 2,5-dimethyl pyrazine translates to faster, more accurate answers when new queries arise.

    Customers in non-food sectors, like fine chemicals, electronics, or specialty polymers, face their own distinct hurdles. Our communication links these technical users directly to plant chemists for quick feedback, whether about reactivity profiles or storage life under challenging conditions. This ensures application-driven supply, not just paperwork fulfillment.

    Quality, Partnerships, and Long-Term Perspective

    For every kilo produced, we remember that it ends up in someone’s process, product, or consumer-good. The responsibility for safety, integrity, and real-world acceptability rests with us as the original manufacturer—not with a distributor or reshipper two steps removed from where it’s made.

    Long-standing customers recognize patterns in our problem-solving approach: direct discussions, transparent batch data, quick shipment of fresh samples, and willingness to troubleshoot right beside customer labs. For new partners, prompt technical response and openness about our production approach serve as early reassurance.

    As markets keep demanding tighter specifications and more responsive support, experience in chemical manufacturing forms the backbone of real trust. Every technical lesson, audit improvement, and customer problem solved becomes part of the knowledge that tightens up future production for everyone’s benefit.

    Our approach to 2,5-Dimethyl Pyrazine reflects lessons born from direct production, troubleshooting, and long-term relationships with both global and local partners. Consistency and transparency have driven us through changing demands, shifting regulatory environments, and evolving end-use applications. We see future challenges as opportunities to deepen expertise, invest in better process controls, and support the fields—flavor, fragrance, food, fine chemicals—where this versatile pyrazine continues to make a difference.