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(4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid

    • Product Name (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid
    • Alias Niflumic Acid Impurity 5
    • Einecs 609-690-5
    • 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

    305669

    Chemicalname (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid
    Casnumber 67865-71-2
    Molecularformula C10H8N2O3
    Molarmass 204.18 g/mol
    Appearance White to off-white powder
    Meltingpoint 204-208°C
    Solubility Slightly soluble in water
    Purity Typically ≥98%
    Storageconditions Store at 2-8°C, protected from light
    Smiles O=C2C(=O)N(N=C2)CC(=O)O
    Synonyms 1-(Carboxymethyl)-4-oxo-1,4-dihydrophthalazine

    As an accredited (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White, opaque screw-cap bottle labeled “(4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid, 25g.” Includes batch number, expiry date, and hazard warnings.
    Shipping (4-Oxo-3,4-Dihydrophthalazin-1-yl)acetic acid is shipped in tightly sealed containers, protected from light, moisture, and extreme temperatures. It is packed according to standard chemical safety regulations, including appropriate hazard labeling and documentation. Shipping complies with local and international regulations for the safe transport of laboratory chemicals.
    Storage (4-Oxo-3,4-Dihydrophthalazin-1-yl)acetic acid should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible materials such as strong bases and oxidizing agents. It should be kept at room temperature and protected from moisture. Proper labeling and secure storage are essential to prevent accidental exposure or contamination.
    Application of (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid

    Applications of (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid in Industrial Manufacturing

    (4-Oxo-3,4-Dihydrophthalazin-1-yl)acetic acid serves as a specialty intermediate in several high-value sectors, including pharmaceutical synthesis, agrochemical production, advanced material science, and diagnostic reagent development. Below we present the core downstream applications, each governed by its own regulatory framework and production requirements. As the direct manufacturer, we support end users in process optimization, compliance and cost control.

    1. Active Pharmaceutical Ingredient (API) Synthesis

    Chemical manufacturers employ this intermediate in the multi-step synthesis of targeted APIs, especially within the anticonvulsant and cytostatic therapeutic classes. The compound’s phthalazinone core participates in condensation and derivatization pathways, enabling the construction of heterocyclic drug scaffolds. Production requires rigorous quality control and full traceability for regulatory submission batches.

    Industry compliance standards

    • Current Good Manufacturing Practice (cGMP, ICH Q7)
    • EU EudraLex Vol. 4 Part II for API production
    • USP, EP, or JP monographs (where applicable for final API)
    • FDA DMF (Drug Master File) referencing for regulated markets

    Typical usage ratio

    • Applied in mole-to-mole stoichiometric or slight excess (1.0–1.2 eq.) depending on the step; adjusted based on route yield and impurity control

    Downstream process integration

    • Introduced at core cyclization or ring-closure steps in intermediate formation
    • May serve as the limiting reagent or downstream functionalization precursor
    • Purification by recrystallization, filtration, or chromatography as per QC protocol
    • Batch records must document raw material batch identity and testing

    Final product types

    • Bulk drug substances (APIs) for oncology drugs
    • Anticonvulsant finished pharmaceuticals
    • Custom contract manufactured small molecules for clinical trials
    • Intermediates for patented pharmaceutical routes

    2. Agrochemical Active Intermediate Production

    Formulators within agrochemical manufacturing utilize this raw material as a scaffold in the synthesis of heterocyclic fungicides and herbicide actives. Its unique structure enables substitution and alteration in late-stage process steps, with particular importance for introducing phthalazinone-derived moieties into crop protection agents. Full batch consistency is essential for downstream formulation stability.

    Industry compliance standards

    • ISO 9001:2015 for quality management
    • FAO/WHO Specifications for agricultural chemicals
    • REACH Regulation (EC) No 1907/2006—registration for European distribution
    • Chinese GB 20807-2022 (if exporting to China)

    Typical usage ratio

    • 0.5–1.5 equivalents within stepwise synthesis, controlled for ratio of end product yield to waste streams; periodically evaluated per synthetic route scale-up

    Downstream process integration

    • Incorporated as a coupling partner in N-alkylation or hydrazide formation steps
    • Upstream activation may precede amidation or cyclization
    • Handled in stainless reactors with staged temperature profiles
    • Final crude filtered and refined before downstream bulk formulation

    Final product types

    • Heterocyclic fungicide intermediates
    • Active ingredients for broad-spectrum herbicides
    • Precursor molecules for selective insecticides
    • Custom agrochemical discovery libraries

    3. Chemical Reagents for Analytical Diagnostics

    Diagnostic reagent producers use this phthalazinone derivative as a building block in luminogenic and chromogenic probe chemistry, as well as for marker synthesis in research assays. The compound’s ring system facilitates stable labeling and signal generation, particularly in chemiluminescent or fluorescence-based diagnostics.

    Industry compliance standards

    • ISO 13485:2016 for medical device and reagent manufacturing
    • CLSI guidelines for analytical reagent validation
    • RoHS Directive 2011/65/EU for materials in diagnostic equipment
    • FDA 21 CFR Part 820 for diagnostics marketed in the U.S.

    Typical usage ratio

    • Used at concentrations of 0.1–5% w/w in probe synthesis depending on sensitivity requirements of the target assay platform

    Downstream process integration

    • Covalently linked to reporter molecules during label synthesis phase
    • Employed in solid-phase support chemistry for oligonucleotide or antibody conjugation
    • Stability assessed under storage and thermal cycling
    • QC includes purity and absence of interfering residues

    Final product types

    • Chemiluminescent diagnostic reagents
    • Chromogenic substrate kits for laboratory analysis
    • Labeled antibodies and oligonucleotide probes
    • High-sensitivity in vitro diagnostic test components

    4. Precursor for Advanced Polymer Additives

    Specialty materials manufacturers incorporate this compound as a precursor in the development of high-performance polymer additives, such as UV absorbers and stabilizers. The phthalazinone moiety, once integrated into polymer chains, enhances resistance to degradation and extends product lifetime particularly for high-value plastics and coatings.

    Industry compliance standards

    • ISO 9001:2015 for full production traceability
    • EU Regulation (EC) 1935/2004 on materials in contact with food, where relevant
    • FDA 21 CFR 177.1520 for polyolefin additives
    • UL 94 safety classification for final plastic articles

    Typical usage ratio

    • Blended at 0.2–2.0% by weight in polymer base, value refined per UV stability and additive compatibility testing

    Downstream process integration

    • Reactive extrusion or melt blending with polymer resin
    • Introduced as pre-polymerized masterbatch or direct additive pellet
    • Integrated into compounding lines with automated dosing systems
    • Final QC includes accelerated aging and migration testing

    Final product types

    • UV-stabilized films and sheets
    • Outdoor automotive and construction plastics
    • Protective coatings for electronic components
    • Masterbatch concentrates for downstream processors
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    Competitive (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid: A Manufacturer’s Perspective

    Developing Products That Move Science Forward

    Every step in chemical synthesis relies on building blocks that deliver consistency, purity, and real-world reliability. (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid has carved out an essential place in our production lines. After years refining our process, we’ve learned that even small variations in raw materials can mean the difference between research stuck at the trial phase and actual results that hold up when repeated worldwide.

    Product Model and Specifications

    Our facility produces this compound meeting tight molecular weight specifications and purity standards demanded across pharmaceutical and chemical research segments. The compound’s physical form typically appears as a white or off-white solid, and we’ve standardized moisture checks and spectral analysis across batches. Our current batch consistently yields spectral data that matches primary literature and lot-to-lot reproducibility down to trace impurities measured in the tens of parts per million. This control has come from persistent evaluation—yield optimization, purification upgrades, and raw material vetting.

    Unlike many generalized phthalazine derivatives on the market, our (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid shows uniform melting point ranges and avoids polymorphic fluctuation. This means no sudden surprises in reaction behavior. Over the years, we’ve tested common synthesis routes—from hydrazine condensation to acetic acid introduction under mildly reductive conditions. Our incremental changes—choice of solvents, washing procedure, and drying method—bring out the subtle differences that translate to sturdy performance in end-stage applications.

    How End Users Put This Acid to Work

    The compound enables researchers to build more complex phthalazinone scaffolds for pharmaceutical explorations, and it often shows up in preparative and analytical development. We’ve seen it feed into multi-step processes, where downstream quality depends on the starting acetic acid derivative. Some clients report using it as a synthon for investigating antitumor candidates, and others require it for fine-tuning ligand design in metal complex chemistry.

    Our technical team has collaborated with several university labs screening molecular analogs, and this molecule’s stability has allowed for reliable baseline readings in kinetic and mechanistic studies. Because analytical teams rely on clean chromatographic profiles, tight purity ensures a clear signal and minimizes troubleshooting during assay development. Our in-house feedback loop lets us adjust each production cycle if new analytical hurdles come up in customers’ labs, closing the gap between large-scale synthesis and specialized R&D.

    Comparing to Other Products

    Chemists look for reagents that provide more than just the minimum standard. Many options on the wider market suffer from batch-to-batch variability, unaccounted-for isomers, or inconsistent moisture contents. Especially with phthalazinone derivatives, the raw quality shifts how reliably they perform. Early on, we used to encounter requests to re-test shipments due to poor solubility or drifting NMR peaks from competitor samples, so we put more resources into identifying potential degradation routes and sensitivity profiles.

    We take pride in running additional purity analytics—such as LC-MS overlays and targeted impurity tracking—to clearly separate our product’s consistency from the generic crowd. This is not about chasing a spec sheet grade, but rather about supporting long research cycles that shouldn’t be plagued by mysterious unknowns. Over the last production year, we collected feedback showing reduced downstream purification needs for our clients and a significant fall in unwanted side reactions. Our quality control team reviews each post-production lot and reserves random samples for ongoing storage stability trials, a practice we chose after some researchers reported shelf-life questions with phthalazinone reagents imported from uncertain origins.

    What True Traceability Means

    As manufacturers, we have seen firsthand what inadequate traceability creates. Labs frustrated by shifting physical properties, students reassigning projects because synthetic targets can’t be reproduced. We log every production parameter—from kettle batch number to cooling rates and storage humidity—since a detailed trail dramatically reduces time spent resolving mystery failures. Our longtime partners, particularly those in regulated pharmaceutical labs, have explained how this detailed recordkeeping supports their own audit readiness. For any issue, we not only trace a batch but map every purchasing and handling variable, which directly impacts outcomes in complicated multi-step synthesis chains.

    Other market players might supply a bare-bones certificate of analysis, but we document minor observations: changes in color under daylight, precise point-of-crystallization, and even notes from our operators on unexpected aroma—the subtle real-life details that influence lab results. Years ago, we began digitizing these logs for immediate sharing with researchers. We now view production transparency not as a market demand, but as a baseline for our own internal standards.

    Safety and Responsible Manufacturing

    Scaling up this compound from lab grams to industrial volumes has presented hazards and learning opportunities. We address not just basic workplace safety but full lifecycle risk. The hydrazine raw materials demand secure sourcing, handling, and containment. Our operators follow strict equipment cleaning protocols, and we schedule regular in-process safety reviews—finding that incident tracking and open reporting culture uncovers inefficiencies before they ever reach chemical exposure or waste handling issues.

    Over recent years, we’ve invested in updated scrubbing systems for exhaust, streamlined solvent recovery, and cross-trained staff to specialize in both production and hazard mitigation. None of these measures come from regulatory mandates alone. Instead, they emerged from direct communication between our line workers and QC analysts. Our production leads meet bi-weekly with technical teams to review batch reports and near-miss logs, aiming to keep both product purity and staff safety high.

    Shipping, Packaging, and Customer Collaboration

    Product integrity depends on more than factory quality—it also rests on how materials travel and arrive. We designed our packaging to prevent humidity infiltration and light degradation. One shipping lab realized delays in hot climates led to marginal degradation using third-party repackaging, so our protocols now call for vacuum-sealed liners packed in opaque containers, with temperature tagging for international shipments. Countless feedback cycles with clients led to double-sealing and QR-coded traceability tags for instant origin verification on arrival.

    We maintain continuous shipping logs and actively solicit feedback from user labs reporting any transit irregularities. Our technical liaisons follow up on every shipment flagged by anomalies, learning from every issue. This ongoing process has cut transportation-related quality complaints by more than half. For clients validating batches for regulatory filings, supporting documents include both analytical results and explicit shipping pathways.

    Supporting Next-Generation Research

    Conversations with synthetic chemists over the years have shown that reliability matters as much as molecular novelty. Many ambitious projects hinge on small-molecule intermediates that perform exactly as expected, without hidden reactivity or sudden loss of solubility. The journey to today’s (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid involved ongoing troubleshooting with partners in drug discovery, agrochemicals, and fine chemical development.

    One notable case involved supporting a university spinoff screening for novel kinase inhibitors. Their medicinal chemists mapped out synthetic routes that called for phthalazinone starting points with narrow impurity thresholds. Early prototypes struggled due to batch instability from generic suppliers, so our team worked directly with their process group, refining crystallization steps and improving bulk storage guidelines. This kind of first-hand interaction makes the work more meaningful, and results in products that directly push innovation forward.

    The Necessity of Purity and Consistency

    Repeatable research relies on precise starting materials. Supply chain disruptions during the last few years forced many labs to turn to new sources, but quick fixes often led to experimental setbacks. One project that focused on optimizing ligand frameworks reported significant deviations in assay outcomes when switching suppliers, which then traced directly back to inconsistent reagent quality. The project team shared their difficulties with our technical support, who then collaborated to analyze questionable results and traced the issue to micro-level contamination overlooked by bulk testing.

    Our response was to tighten both trace impurity profiles and monthly review cycles for raw materials. Careful attention at the front end of production remains far more efficient than troubleshooting at the back end. We introduced multiple analytic checkpoints per batch and implemented real-time tracking of reagent introduction in the synthesis sequence. As a result, subsequent client feedback showed that experimental bottlenecks had dropped and productivity went up.

    Environmental Considerations and Continuous Improvement

    We view our role not just as suppliers, but as responsible contributors to the chemical ecosystem. From the beginning, solvent recovery and waste minimization have been priorities in our plant. Each batch draws on recycled solvent streams where possible without impacting final purity. Used process water moves through on-site filtration systems before release, and our waste handling team tracks every container to its end destination. Environmental audits take place alongside regular quality audits, feeding into our continuous improvement programs. Sustainability and traceability form the backbone of long-term market and regulatory trust.

    It’s common to encounter regulatory shifts around chemical waste or trace pollutant monitoring, often with little lead time. Our team tracks these developments and adjusts internal procedures quickly. After a regional change to hazardous waste categorization, we fast-tracked investment in zero-discharge equipment for both the main production and byproduct handling areas. This approach enabled us to stay ahead of compliance benchmarks while protecting the safety of our workers and local communities.

    Technical Support Rooted in Real Practice

    Our technical support team comes mostly from the same backgrounds as our customers: synthetic chemistry, project management, quality assurance. Many have run their own experiments, designed purification protocols, or confronted unexpected analytical problems in a research setting. Bringing this experience back into the manufacturing loop means support goes beyond answering questions—we help labs trouble-shoot actual failures, review protocols, and sometimes even provide targeted analytical support for method development.

    We learn as much from questions as from formal feedback. Over the past year, remote troubleshooting sessions highlighted a recurring problem with acetic acid derivatives forming subtle hydration products when stored under ambient humidity. Our QC team moved quickly, comparing stability of different packaging and investigating small changes in storage guidelines, which ultimately improved shelf-life and drop-in performance for multiple clients using the compound in multi-step syntheses.

    Real-World Quality Benchmarks

    We approach our work not as checkbox-driven manufacturing, but as an ongoing relationship with laboratories and research groups who rely on accuracy and transparency. Analytical quality means reporting even trace artifacts, verifying against both primary standards and customer-supplied sample results, and owning up to rare cases of batch deviation. Sometimes the story of a single out-of-spec lot reveals systematic opportunities for improvement. We invest in root cause analysis and regular process upgrades not because certification bodies ask for it, but because the real-world cost of short cuts shows up in client labs—missed reaction endpoints, unreliable screening hits, and wasted time requalifying raw materials.

    Our team maintains regular communication with returning research customers. They pass along observations, variations, and new trends in application needs, and we believe that these ongoing relationships help keep our production better aligned with real-world demand. Regular dialogue turns into progressively stronger product benchmarks. This is how we chart a path to reliability that lasts.

    Conclusion: Commitment to Scientific Progress

    Manufacturing (4-Oxo-3,4-Dihydrophthalazin-1-Yl)Acetic Acid provides us a front-row seat to global research progress. Each refinement in our process, quality control methodology, and environmental stewardship ties back to a single goal—helping leading researchers make real breakthroughs, without hidden setbacks from unreliable raw materials. Every day, we strive for better because each molecule may be the building block for tomorrow’s advancement.