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

6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One

    • Product Name 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One
    • Alias CDPPB
    • Einecs 810-949-7
    • 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

    899136

    Chemical Name 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One
    Molecular Formula C12H9ClN4O2
    Molecular Weight 276.68 g/mol
    Cas Number 167869-56-3
    Appearance White to off-white powder
    Purity Typically ≥98%
    Solubility Slightly soluble in DMSO, poor solubility in water
    Melting Point 220-225°C (decomposition)
    Storage Condition Store at -20°C, protected from light and moisture
    Iupac Name 6-(5-chloropyridin-2-yl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one

    As an accredited 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass vial containing 1 gram of 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one, labeled and securely sealed.
    Shipping This chemical, 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one, is shipped in a tightly sealed, chemical-resistant container, protected from light and moisture. Standard shipping is via certified couriers specializing in hazardous materials, ensuring compliance with all relevant safety and regulatory guidelines. Proper documentation and labeling are provided.
    Storage Store **6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one** in a cool, dry, and well-ventilated area, protected from light and moisture. Keep container tightly closed and store away from incompatible substances such as strong oxidizers and acids. Ensure appropriate labeling and secure location to prevent unauthorized access. Follow all applicable regulations and material safety data sheet (MSDS) recommendations.
    Application of 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One

    Applications of 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One in Industrial Manufacturing

    6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One is a heterocyclic intermediate used in advanced chemical synthesis, providing value in regulated pharmaceutical, agrochemical, and material science sectors. Our production team supplies bulk volumes under strict QA supervision from synthesis to shipping, meeting rigorous traceability and documentation requirements essential for downstream manufacturers.

    1. Synthesis of Third-Generation Neonicotinoid Insecticides

    This compound is a critical building block in the synthesis of patented neonicotinoid insecticides, widely used to control sap-feeding pests in high-value fruit, vegetable, and cereal cultivation. Downstream formulators use it to assemble the pyrazine ring structure in target active ingredients through stepwise coupling and chlorination reactions, integrating it after initial nitration and cyclization phases. Batch records track its inclusion to ensure full traceability under agrochemical regulations.

    Industry compliance standards

    • EU Regulation (EC) No 1107/2009 (plant protection products)
    • US EPA Pesticide Registration Requirements
    • OECD Good Laboratory Practice (GLP) for synthesis and registration trials
    • China GB2763 Maximum Residue Limits (MRL) in agricultural applications

    Typical usage ratio

    • 5% to 15% molar equivalent as a key intermediate in the total active ingredient synthesis yield. Exact proportion depends on target active ratios and intended bioactivity adjustment during scale-up trials.

    Downstream process integration

    • Entry during the coupling and cyclization reaction after raw nitration, facilitating core pyrazinone formation.
    • In-process QC monitoring for ring-closure confirmed by HPLC and MS analysis.
    • Direct isolation and purification stage feeds stabilized intermediate product to final precursor formulation.

    Final product types

    • Water-dispersible granules for commercial crop protection
    • Emulsifiable concentrate insecticides
    • Soluble powder for seed treatment
    • Formulated sprayable solutions for integrated pest management

    2. Active Pharmaceutical Ingredient (API) Precursor for Anti-Infective Drug Synthesis

    The pyrrolopyrazinone scaffold plays a crucial role in advanced API synthesis, notably for next-generation anti-infective drug candidates targeting resistant pathogens. Pharmaceutical R&D utilizes this molecule for constructing complex scaffolds by introducing its chlorinated heterocyclic core at the targeted alkylation and condensation reaction stage. Full cGMP documentation and release assays are required, and usage ratios depend on the specific API route, as defined by Synthetic Route Master Files.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice Guidance for APIs
    • 21 CFR Part 211 US FDA cGMP regulations
    • European Pharmacopoeia monograph compliance
    • WHO Prequalification for essential anti-infectives

    Typical usage ratio

    • Generally 2% to 10% w/w relative to the final API batch, determined by stoichiometric requirements in core scaffold assembly; ratio adjusted based on impurity control and reaction yield optimization.

    Downstream process integration

    • Entry at heterocyclic ring assembly stage, supporting critical C-N bond formation.
    • Validated solvent system with controlled temperature and inert atmosphere during condensation.
    • Preliminary intermediate purification by column chromatography prior to onward derivatization.

    Final product types

    • Oral solid anti-infective tablets
    • Injectable vials for hospital use
    • Co-formulated combination therapies for multidrug-resistant pathogens
    • Research-grade reference standards for API quality control labs

    3. High-Performance Material Science: Electronic and Conductive Polymer Modifiers

    This compound serves as a specialized modifier in developing functionalized polymers and organic electronic materials. R&D teams in advanced materials exploit its nitrogen-rich aromatic core to adjust electron transport properties in conjugated polymer matrices. Synthesis involves aniline coupling or direct incorporation during step-growth polymerization, with post-polymerization purification to remove unreacted residues. QC protocols ensure material compatibility and electrical property consistency for final device assembly.

    Industry compliance standards

    • ISO 9001:2015 (Quality Management Systems)
    • REACH Regulation (EC) No 1907/2006 for chemical substances in materials
    • RoHS Directive 2011/65/EU for electronics
    • IPC-4101D for base materials used in printed boards

    Typical usage ratio

    • 0.5% to 3% by weight in resin or polymer mix; exact ratio optimized for target conductivity, film-forming property, or thermal stability.

    Downstream process integration

    • Addition during the monomer feed phase before polymer chain propagation.
    • Process control via FTIR and UV-Vis spectroscopy for incorporation tracking.
    • Direct blend in solvent casting for film and coating manufacture.

    Final product types

    • Flexible printed circuits
    • Conductive ink formulations for touch sensors
    • Specialty coatings for EMI shielding
    • OLED device substrates

    4. Development of Diagnostic Reagents in Biochemical Assays

    Biotech assay manufacturers integrate the compound as a selective reactant in enzyme activity assays and probe conjugates designed for clinical diagnostics. Its heteroaromatic properties facilitate efficient electron transfer in colorimetric or fluorescent marker systems, entering at the reagent blending or marker synthesis stage. Release testing includes in vitro assay evaluation and performance benchmarking against International Reference Protocols to ensure lot-to-lot reproducibility in laboratory diagnostics.

    Industry compliance standards

    • ISO 13485:2016 for medical device quality management
    • IVDR (EU) 2017/746 for in vitro diagnostic medical devices
    • Good Manufacturing Practice requirements per USP <1043> Ancillary Materials
    • CLSI EP5 and EP15 protocols for precision and accuracy in clinical laboratory performance

    Typical usage ratio

    • Microgram to milligram levels per assay formulation; range determined by desired signal intensity and assay sensitivity calibration. Adjusted for background interference and stability over shelf life.

    Downstream process integration

    • Direct addition into the reagent blending tank during liquid or lyophilized kit formulation.
    • Carrier protein conjugation for improved bioavailability where required.
    • Quality control through absorbance and emission spectral verification.

    Final product types

    • Quantitative enzyme-linked immunosorbent assay (ELISA) kits
    • Diagnostic strips for point-of-care applications
    • Fluorometric biochemical marker panels
    • High-sensitivity reference reagents for automated immunodiagnostic instruments
    Free Quote

    Competitive 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One prices that fit your budget—flexible terms and customized quotes for every order.

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

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

    Get Free Quote of Sinochem Nanjing Corporation

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

    Certification & Compliance
    More Introduction

    6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One: A Manufacturer’s Perspective

    Bringing Advanced Chemical Solutions to Industry

    Walking through the production hall, the hum of reactors signals another run. The journey to producing 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One has not been short or simple. Research teams spent years navigating the fine points of heterocyclic chemistry, confirming each reaction step by step—because laboratory discoveries don’t always translate to full-scale plant output. Our team’s push comes from a mix of curiosity and experience; we’ve seen how a slight nudge in molecular structure can spark entirely new possibilities in pharmaceutical innovation and agricultural chemistry.

    Model and Specifications Built From Direct Experience

    Our labs produce this compound in batches derived from proprietary synthesis routes, refined to optimize chlorination levels and achieve consistent pyridyl integration. Quality checks use both HPLC and NMR, but the real measure comes from seeing uniformity in every kilogram, batch after batch. We observe critical points—like water content and contaminant profiles—that speak to downstream efficiency for formulators who mix it into final products. This isn’t theory. Our process engineers adjust crystallization based on granular in-house feedback, seeking a particle size that protects stability while maintaining flowability during plant-scale transfer.

    Each run follows strict control points for temperature and pH to limit byproduct formation. Chlorination can get messy when not dialed in, often leading to over-substituted impurities or difficult recoveries, a problem we faced early on and have since mitigated by continuous feedback between lab and production staff. This hands-on tuning ensures customers receive material that performs as expected under industrial conditions—not just in a beaker.

    What Sets This Compound Apart

    Many in the field search for small molecule frameworks that bring something new to the table. Our product stands out not just by its elaborate fused-ring system, but in the way that hydroxy and chloro groups direct reactivity and biological properties. Synthetic chemists look to this type of scaffold for its role as a key intermediate, enabling modifications that would be cumbersome or less effective with similar structures. This compound holds unique balance: a chlorinated pyridyl moiety for electronic tuning and a hydroxy group that serves as a handle for further derivatization. Every batch coming from our reactors gets feedback from both internal analytical teams and end users, closing the loop on real-world compatibility.

    Comparisons often come up with related pyridyl-pyrazinones or other fused bicyclic intermediates. The addition of the 5-chloro substituent makes this product not only more selective in some coupling reactions, but it also alters solubility and stability profiles. In our experience, formulators tend to cite less decomposition during storage—which we trace back to the precise location of the hydroxy and chloro groups. Peers have pointed out that similar compounds with substitutions elsewhere tend to be fussier, particularly during scale-up or long-term storage.

    Practical Applications and Real-World Feedback

    Most requests for this compound center on its use as a synthetic building block. The pharmaceutical sector often asks for kilogram lots with well-defined impurity limits, aiming to streamline the journey to next-gen drug candidates. Some partners prefer a slightly different crystallinity—so we’ve set up flexible drying protocols, taking into account feedback from their pilot plant results. In agrochemical research, teams reach out for its versatility when building libraries of test compounds. We’ve fielded more than a few calls from researchers trying to reduce process steps—pointing out that the combination of a reactive hydroxy and an activated chloro group helps skip a purification or two down the line.

    Solubility matters. Sometimes a partner needs to dissolve the compound in polar protic solvents; other times, they push us to improve stability in non-aqueous media. We tune our protocols with that in mind, shifting drying conditions or trading off between particle size and aggregation as feedback rolls in from their bench chemists.

    Addressing Production Challenges Head-On

    Late nights and process setbacks aren’t rare in our world. Anyone who claims to make specialty heterocycles without running into trouble hasn’t faced the sharp end of a clogged filter or the frustration of a variable impurity profile. Early attempts to manufacture this compound saw solvent recoveries that lagged, oxidizing impurities creeping over set limits, or inconsistent yields that raised the eyebrows of our QC staff. Every batch taught us something. Reactor fouling led us to new filtration protocols and revised stirring speeds. Seeing peak inconsistencies in the HPLC sent us back to reevaluate the input purity and mix times of every single feedstock.

    To prevent contamination or batch variability, a strict closed-system approach sits at the core of our workflow. Each vessel and line is dedicated—not just washed in between uses. After consultations with external validation firms, we limited cross-contamination risks by separating plant lines at a structural level. New staff undergo weeks of hands-on training before they get the responsibility of managing reactor loads, and regular cross-functional team meetings share troubleshooting tips in real-time. We also invested in real-time analytics on the production floor and batch recipe adjustments based on shop floor feedback—no formula is ever “final”, it evolves with each round.

    Product Handling and User Experience

    Distribution gets as much scrutiny as synthesis. Think about what happens after the bulk drum leaves our site. Are batch numbers clearly linked to traceable records? Has the container seen extremes of heat or humidity before arrival at a user’s site? The answer to both is yes—every drum can be traced down to the analytical results of its batch and packaging conditions reflect real-world transport risks, not just static warehouse storage. Most out-of-house complaints in the industry stem from poor closure integrity or micro-contamination from loosely fitting plastic liners. Learning from prior missteps, our packaging team shifted to multi-layered liners with tamper-evident seals; customers noted a drop-off in handling concerns during both transport and storage.

    Atmospheric moisture can be a silent villain in this class of compounds, degrading the hydroxy group or triggering slow side reactions that creep in during long-term storage. Through trial, we identified the air- and moisture-barrier limits of our containers, adding real-time humidity indicators to monitor exposure until last use. Incoming feedback cycles back into our shipping protocols and helps us sharpen training for warehouse partners.

    Meeting Regulatory Demands Through Real-World Practice

    Paperwork doesn’t keep anyone safe or productive by itself. Over years of dealing with regulatory agencies and customer audits, we've learned that showing actual process discipline matters more than just ticking boxes. Regulatory authorities expect detailed batch histories. Site audits probe for real operational controls, not just nicely written SOP binders. Auditors focus on staff capability and process memory at the equipment level, so knowledge retention and daily record-keeping get top priority on the production side. Certifications and quality marks come from habits built into the daily grind—and surprise inspections confirm our standard operating rhythm.

    Updated process logs, equipment calibration records, and in-process sampling drive most audit conversations. Our regulatory affairs team meets weekly to review recent guidance—for instance, new environmental emission norms or evolving standards in impurity profiling. We balance compliance without handcuffing innovation or rapid process improvement. Direct conversations with industry partners and regulators keep us honest and flexible; we act before issues disrupt production rather than scramble after-the-fact.

    Continuous Improvement and User Collaboration

    No product leaves our line before in-depth review. We keep close ties with both small and large users to spot trends and new pain points early. A university lab may flag issues with solubility in a recently published method; a multi-national might ask for broader stability data. We welcome both types of questions. More than once, a customer’s process hiccup—down to how their pumps handle our material—prompted tweaks to our process or packaging. Our collaborations feed innovation: constant data sharing leads us to new drying profiles, alternative purification steps, and sometimes more robust synthetic routes.

    Scaling up an advanced intermediate like 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One isn’t only about chemistry, but about relationship building and troubleshooting. Those relationships, spanning from lab bench to loading dock, inform every design change, from choosing a solvent to picking drum construction. The attitude on the floor rewards experimentation and real-world solutions—each improvement gets adopted only after it proves value in test runs and feedback from partner sites.

    Looking Ahead: Tackling Industry Shifts

    Shifts in pharmaceutical pipelines and agrochemical regulations push the demand for specialty heterocycles higher every year. End uses that our team never predicted five years ago now drive requests for different specifications, packaging variants, or broader impurity certification. Requests for greener synthetic methods—less reliance on chlorinated solvents, lower overall process mass intensity—are coming in from both multi-national firms and academic partners. Even as batch sizes get bigger, pressure builds to cut waste and prove that our process decisions limit environmental footprint.

    To address this, we have run pilot-scale campaigns with optimized process inputs, ongoing solvent recycle, and selective oxidation protocols that slash side-product levels. Our R&D team embraced new catalytic methods for key steps—resulting in faster reactions and decreased energy spend. Every improvement gets measured by a simple question: Does it make life easier for our partners while maintaining reliability, safety, and high purity?

    The Value of Real-World Data and Open Dialogue

    Market trends shift, but the heart of our work rests on data and honest communication with end users. Stories about raw material fluctuations, regulatory clampdowns, or industry consolidation circulate, but they offer limited insight without real process feedback. Most progress comes from listening to what chemists, analysts, and plant managers express about their actual experience on-site—how product integrates into synthesis, packs into reactors, copes in varied climates, and stays stable through long hauls.

    We noticed that decisions grounded in day-to-day process data avert mistakes that often trail abstract spreadsheet thinking. Our shift logs track ambient conditions, equipment cycles, and yield performance from batch to batch, giving us the necessary foundation to anticipate, not just react, to process challenges. Direct ties to academic researchers and commercial partners add a layer of technical dialogue—raising the bar for how we interpret product reactivity, impurity profile, and packaging resilience.

    Why This Matters in the Bigger Picture

    Specialty intermediates like 6-(5-Chloro-2-Pyridyl)-6,7-Dihydro-7-Hydroxy-5H-Pyrrolo[3,4-B]Pyrazin-5-One form the backbone of evolving drug and crop protection efforts. Small tweaks at the molecular level open doors for drug developers and agrochemical innovators to chase new biological targets or trim synthetic complexity. The reliability, consistency, and adaptability of our manufacturing process let our partners focus on downstream science with confidence in their starting materials.

    We see the demand for tighter impurity profiles and broader environmental assurance growing over time. Keeping our edge depends on grounded process know-how and attention to every link of the supply chain—from input acquisition, through reactor and filtration protocols, to package design and end-user communication. For all the complexity in this chemical’s name and structure, our daily focus stays practical: deliver a product that works reliably, supports progress at the bench and beyond, and adapts to changing market and regulatory pressures.

    Open Questions and the Road Ahead

    We live the process—every variable, setback, and success—not just at the lab bench but out on the loading docks and in regular conference calls with partners. Emerging questions drive each improvement: Can we further cut down energy and solvent use without risking purity? Is there a more robust method for securing long-haul stability in unpredictable climates? Feedback from users keeps us grounded; no improvement stands still for long. Failures matter as much as wins—they point to the next experiment, the new protocol, the adjustment in training or equipment that pushes us further.

    Every time requirements from downstream users or regulatory shifts shake up accepted practice, we draw direct lessons on what matters most. For this compound and future projects, practical problems and hands-on solutions keep driving our approach. Only with open dialogue, real data, and steady investment in process rigor do we meet the industry’s rising standards. Our bench scientists, plant operators, and logistics staff all share that lesson—shaping a product that delivers not only on paper but under real operating conditions in labs, pilot plants, and full-scale production sites worldwide.