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

8-Quinolinecarbaldehyde

    • Product Name 8-Quinolinecarbaldehyde
    • Alias 8-Quinaldinecarboxaldehyde
    • Einecs 208-911-0
    • 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

    455533

    Chemical Name 8-Quinolinecarbaldehyde
    Cas Number 607-35-6
    Molecular Formula C10H7NO
    Molecular Weight 157.17 g/mol
    Appearance Yellow crystalline powder
    Melting Point 70-73 °C
    Boiling Point 306 °C
    Density 1.28 g/cm3
    Solubility Slightly soluble in water, soluble in organic solvents
    Purity Typically ≥98%
    Smiles c1ccc2c(c1)cc(nc2)C=O
    Inchi InChI=1S/C10H7NO/c12-7-8-5-3-4-6-9(8)11-10-2-1-6/h1-7H
    Refractive Index 1.695
    Storage Conditions Store at room temperature, keep container tightly closed

    As an accredited 8-Quinolinecarbaldehyde factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 100g bottle of 8-Quinolinecarbaldehyde comes in an amber glass container with a secure screw cap and hazard labeling.
    Shipping 8-Quinolinecarbaldehyde is shipped in tightly sealed containers to prevent moisture and light exposure. Packaging follows safety regulations for hazardous chemicals, with clear labeling and handling instructions. During transit, it is kept upright and cushioned to avoid breakage. Transport adheres to relevant local and international chemical shipping guidelines.
    Storage 8-Quinolinecarbaldehyde should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from sources of ignition. Protect from light and moisture, and keep separate from strong oxidizing agents. Store at room temperature or lower, as specified by the supplier’s recommendations, and ensure appropriate labeling and secure storage to prevent unauthorized access or accidental spills.
    Application of 8-Quinolinecarbaldehyde

    Applications of 8-Quinolinecarbaldehyde in Industrial Manufacturing

    8-Quinolinecarbaldehyde serves as a key functional intermediate in several specialized chemical industries, supporting process efficiency and value-added compound synthesis. Our manufacturing expertise ensures consistent supply and stringent quality control to downstream partners worldwide. This section details principal real-world applications by sector, highlighting regulatory adherence, industrial formulation guidance, production integration points, and resulting end products.

    1. Pharmaceutical Intermediate for Antimalarial Drug Synthesis

    Pharmaceutical manufacturers use 8-Quinolinecarbaldehyde as an essential intermediate in the multistep synthesis of anti-infective agents, including certain antimalarial drugs such as amodiaquine and related 4-aminoquinoline derivatives. This compound acts as a selective carbonyl building block in condensation reactions, introducing functionalized quinoline moieties. During process validation, formulation chemists carefully control stoichiometry to achieve desired purity profiles and minimize by-product formation that could impact downstream clinical safety. The strict regulatory environment in active pharmaceutical ingredient (API) manufacturing mandates traceability and documentation for each raw material lot.

    Industry compliance standards

    • ICH Q7: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • EDQM CEP procedures for registered intermediates
    • WHO GMP and local health authority guidelines for APIs
    • USP/NF and Ph. Eur. impurity requirements for related quinoline compounds

    Typical usage ratio

    • Employed at 0.8–1.2 molar equivalents relative to core substrate in key condensation step; adjusted based on target yield and impurity profile for each process route.

    Downstream process integration

    • Introduced after initial raw material charging, undergoing controlled condensation or Schiff base formation. Consumption monitored throughout reaction, followed by in-process testing and eventual isolation of the desired pharmaceutical intermediate batch.

    Final product types

    • Amodiaquine and analogues
    • 4-Aminoquinoline class antimalarials
    • Intermediates in custom synthesis projects for anti-infective APIs

    2. Ligand Precursor in Catalysis for Fine Chemical Manufacturing

    Industrial and research-scale fine chemical producers utilize 8-Quinolinecarbaldehyde as a core precursor for custom ligand synthesis, particularly for N,O-containing chelating agents in homogeneous and coordination catalysis. This material enables the in-situ formation of Schiff bases and heterocyclic ligand frameworks that stabilize metal centers for various transformations, including carbon–carbon coupling, oxidation, and asymmetric hydrogenation. Downstream customers typically require precise control over batch traceability, analytical purity, and residual starting material in the final ligand product to ensure reproducibility and reactivity of their catalytic systems.

    Industry compliance standards

    • ISO 9001 for chemical manufacturing traceability and QC
    • Chemical hazard and transport compliance: REACH (EC) No 1907/2006
    • RoHS for restricted metals in catalyst prep

    Typical usage ratio

    • Ligand synthesis recipes specify 1:1 molar equivalent with primary amines; actual proportion varies from 0.95–1.05 based on reactivity and process optimization for scale-up.

    Downstream process integration

    • Reacted in solvent media with specific diamines or metal salts. The compound is charged during the ligand assembly step, monitored for completion by HPLC/GC analysis, and removed or converted during downstream ligand purification.

    Final product types

    • Custom N,O-chelating ligands
    • Transition metal catalysts for Suzuki, Sonogashira, Heck, and related catalytic processes
    • Chiral organometallic complexes for pharmaceutical and perfume intermediate manufacturing

    3. Fluorescent Probe Synthesis for Analytical Reagents

    Specialty chemical firms employ 8-Quinolinecarbaldehyde as a functional scaffold in the preparation of quinoline-based fluorophores and chemosensors, widely used in trace metal detection, cell imaging, and environmental analysis. These probe molecules harness the aldehyde's reactive site for conjugation to various backbone structures, often tailoring their photophysical properties for particular wavelength sensitivity or selective binding profiles. Stringent batch quality, impurity control, and documentation of sourcing align with requirements for trace analysis and scientific reproducibility demanded by contract laboratories and industrial end users.

    Industry compliance standards

    • ISO 17034 for reference material producers
    • ISO/IEC 17025 for accredited analytical labs
    • REACH registration for lab reagent chemicals

    Typical usage ratio

    • Integrated at 0.5–1.3 equivalents during aldehyde–amine condensation or click chemistry steps; fine-tuned based on fluorescent yield and background reduction objectives.

    Downstream process integration

    • Charged during synthesis of fluorophore’s core, followed by purification (chromatography or crystallization) to achieve target emission properties. Supplies product at high chemical purity and traceability lot-splitting for lab-scale kit production.

    Final product types

    • Fluorescent chemosensors for heavy metal cations (Cu²⁺, Zn²⁺ detection)
    • Probes for live cell fluorescence microscopy
    • Spectroscopic analytical kit reagents

    4. Agrochemical Intermediate for Plant Protection Compound Synthesis

    Our material features as a critical starting agent in the agrochemical sector, especially in the synthesis of specialized herbicidal and fungicidal quinoline derivatives. Agrochemical formulation chemists exploit the carbonyl reactivity for constructing heterocyclic scaffolds that form the backbone of active pesticidal ingredients. Raw material compliance documentation and trace residue management are essential due to the stringent regulatory scrutiny of agrichemical actives destined for field application.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products
    • Chemical Management under FIFRA (US), Regulation (EC) No 1107/2009 (EU)
    • ISO 9001 for production and batch quality
    • GLP requirements for manufacturing intermediates

    Typical usage ratio

    • Applied at 1.0–1.5 equivalents depending on target heterocycle and downstream crop safety requirements, adjusted in pilot scale runs based on product selectivity and regulatory batch consistency goals.

    Downstream process integration

    • Introduced in the heterocycle-forming step; post-reaction workup ensures compliant residual starting material content. Integrated at early phases to drive core quinoline ring formation, followed by functionalization and final formulation.

    Final product types

    • Selective quinoline-derived herbicides
    • Fungicides for cereals and broadleaf crops
    • Key intermediates for crop protection actives subjected to field testing and registration

    5. Dye and Pigment Industry: Synthesis of Functional Colorants

    Manufacturers in the dye and pigment sector rely on 8-Quinolinecarbaldehyde as a controlled intermediate for engineering quinoline-based dye molecules, particularly for specialty colorants used in high-performance textile, inkjet, and optoelectronic markets. The aldehyde moiety enables selective functionalization leading to bathochromic shifts and tailored fastness properties. Downstream production environments focus on quality assurance, disclosure of residual starting compounds, and compliance with colorant registration protocols for destined markets.

    Industry compliance standards

    • Oeko-Tex® Standard 100 for textile colorant safety
    • REACH Annex XVII for colorant restriction compliance in Europe
    • ISO 9001:2015 for pigment batch traceability and QC

    Typical usage ratio

    • Varies from 0.8–1.4 equivalents dependent on dye synthesis route and colorant structure, limited by solubility and exhaust factors in pilot optimization studies.

    Downstream process integration

    • Added during core dye skeleton assembly. Material is consumed through multi-step synthetic sequences, followed by colorant purification targeted to shade and lightfastness specifications for formulated products.

    Final product types

    • Quinoline-derived disperse dyes for polyester textiles
    • Functional yellow and orange pigments for specialty inks
    • Intermediate chromophores for optoelectronic device coatings
    Free Quote

    Competitive 8-Quinolinecarbaldehyde 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

    8-Quinolinecarbaldehyde: Behind the Manufacturing Curtain

    The Product We Know Inside Out

    8-Quinolinecarbaldehyde occupies a distinct spot in our production lineup. Years of hands-on experience handling this compound gives us more than just technical familiarity; it offers perspective into what distinguishes this product from other heterocyclic aldehydes. Our factory work has brought us up close to the molecule, both in synthesis and in application. It’s not merely a catalog number here. Our teams pour their skill and observation into each batch, and every drum or canister holds the cumulative result of iterative process improvement. Reliable quality does not emerge by accident; it comes from tackling process variables directly and accepting only material that demonstrates clarity and uncompromising chemical integrity.

    Specification Matters—But Experience Matters More

    9.9 times out of 10, our customers understand that specifications go deeper than a few lines on a certificate of analysis. To meet the repeat demands from research institutes, pharmaceutical development teams, and ligands manufacturers, we’ve learned to pay attention to markers that go beyond minimum purity or melting point. For 8-Quinolinecarbaldehyde, controlling the isomeric purity and the spectral signature demands patience and methodical process work. The color, crystalline habit, and subtle odor also serve as qualitative checks for those accustomed to working with this compound. Every experienced chemist glancing into a well-prepared sample recognizes attributes that analytical values alone never capture. That comes from lived familiarity with the molecule’s personality.

    How Application Drives Production Philosophy

    Most people encountering 8-Quinolinecarbaldehyde know it as a synthesis intermediate. Our own history with this product traces back to work supporting complex ligand design and fluorescent probe development. Preparative organic chemists value the reactivity of the aldehyde group at the 8-position, making it a favored building block for Schiff base formation, transition metal chelation, and the crafting of functional frameworks for bioactive molecules. When those requirements shape a synthesis line, we bring our full knowledge of multi-stage purification to bear. No short-cuts, no unverified steps. Skipping care in oxidation, distillation, or fractionation can cause downstream complications—process efficiency for us always aligns with providing material that behaves predictably in customer hands. Our own solvent usage and environmental controls follow tightening best practices; these limits may not appear on a certificate, but they matter to operators who want cleaner, safer products.

    Differences That Depend on the Details

    From a manufacturer’s vantage point, 8-Quinolinecarbaldehyde’s differences come out most clearly during the actual production runs. Unlike simple aromatic aldehydes, the fused nitrogen ring in quinoline introduces sensitivity in each reaction stage, especially during controlled oxidation or functional group transformations. Most people only glimpse the end result. We’ve seen how minor temperature or reagent variances can shift physical appearance, reaction time, and yield in ways that might haunt a scale-up or slow down R&D. There’s an education in producing both the smallest analytical batch and the bulk drum. Some compounds allow rougher handling or broader conditions; 8-Quinolinecarbaldehyde does not. The difference shows not just in consistent NMR or HPLC traces, but in how confident our customers feel running their next synthetic step without disruptive surprises.

    Learning From the Chemical’s Behavior

    Long-term involvement with quinoline derivatives provides lessons that spec sheets usually miss. One lesson: 8-Quinolinecarbaldehyde can be unexpectedly light-sensitive and susceptible to slow polymerization or degradation if stored with atmospheric moisture. In our facilities, we only use glass-lined reactors and tamper-evident packaging for this product. These are deliberate expenses: they eliminate trace-metal contamination and stop air ingress over time. Our warehouse setup includes monitored temperature and humidity controls that go beyond typical storage standards. It’s sometimes tempting to push those costs down. Years of handling loss, discoloration, and feedback from disappointed customers quickly chips away at such wishful thinking. In this category, little details drive customer loyalty.

    Why Usage Context Leads Our Process Design

    Our customer base draws from diverse markets. Some clients work on molecular imaging, others tackle medicinal scaffolds or new catalyst systems. Their requirements converge in one aspect: no one wants unexplained variability. Our process control grows out of watching how people apply 8-Quinolinecarbaldehyde in real world chemistry. Small impurities often escape detection by non-specialists, but show up in downstream processes—creating unreliable yields or failed characterizations. This reality shapes our plant’s batch isolation routines, drying equipment, and analytical threshold decisions. Far from a compliance burden, these constraints focus our attention squarely on areas most likely to affect our partners in the lab.

    Understanding Competitive Alternatives

    Chemists sometimes substitute naphthaldehydes or pyridinecarbaldehydes in place of 8-Quinolinecarbaldehyde, depending on the reactivity profile needed. We’ve manufactured those as well and noted unique differences between each system. Only the quinoline ring system at the 8-position provides that particular reactivity for certain C=N bond formations or chelation modes with transition metals. We’ve tested analogs in our own applications, but each one offers a distinct reactivity, electronic distribution, and steric demand. Process engineers comparing synthetic pathways know it quickly: attempting a direct switch rarely gives identical results. Our ongoing dialog with university teams and pharmaceutical labs often revolves around these subtle but significant divergences.

    Production Challenges That Don’t Appear on Labels

    Producing 8-Quinolinecarbaldehyde at scale presents hurdles not always obvious from published methods. Supply chain swings over the years have pulled the cost and quality of raw quinoline and oxidants in many directions. Within our operation, purchasing teams closely monitor supplier changes and batch variabilities that could impact yields or byproduct profiles. No amount of documentation substitutes for hands-on piloting with a new lot or physically verifying critical points in the process. The complexity here doesn’t just stem from reaction chemistry—it’s shaped by real-world challenges such as evolving safety regulations, equipment wear, and tightening discharge controls. Consistency does not come by default; it is defended through continuous vigilance and field-proven procedures.

    Environmental Care in Production and Packaging

    The chemical sector can only ignore lifecycle impacts at its own peril. Over the years, we have swapped out chlorinated solvents, redesigned vent systems, and implemented closed transfer lines when running 8-Quinolinecarbaldehyde. Even the packaging materials—customized lined containers protecting the aldehyde from premature exposure—result from years of loss analysis and customer complaints about color drift. We recycle off-gas through activated carbon traps and revalidate spent solvent streams for feasibility of recovery rather than outright disposal. In some cases, these practices increase direct costs. To us, they form part of a responsibility not just to customers, but also to our own teams and communities. We’ve seen competitors cut corners only to lose credibility over leaky containers or regulatory fines. The stewardship behind each shipment adds value quietly but substantially.

    Looking Back: Evolving Knowledge of 8-Quinolinecarbaldehyde

    Twenty years ago, producing 8-Quinolinecarbaldehyde involved more guesswork and unplanned downtime than today. Access to better-quality raw materials, more evolved analytical techniques, and digital monitoring changed how we manage batches. An early mistake—scaling up too quickly from flask to reactor—left us with a pile of off-color material and no useful product. There were no shortcuts for learning cycle times, cooling rates, or watching for trace over-oxidation. Those early failures, frustrating as they felt at the time, taught us lessons now embedded into training new operators. Every batch now builds on that cumulative operational memory. True manufacturing resilience did not come from a single procedure—it developed through acknowledging mistakes and adjusting for tens or hundreds of small, recurring realities.

    What Research Tells Us About the Compound

    Peer-reviewed literature and industry research both provide useful context, setting benchmarks for purity, isomeric content, and reactivity profiles. Our R&D staff routinely cross-check product features against open literature and comparative supplier data. They discovered years ago, for instance, that small structural variations in 8-Quinolinecarbaldehyde produce measurable differences in UV absorption spectra and downstream functionalization reactivity. Taking a research-oriented approach means we adapt methods as new findings emerge, sometimes retraining our own analytical team on subtle impurity detection or storage limits. Our partnership with academic groups allows access to advanced NMR facilities and occasionally even feedback from field-testing of our material in high-value synthesis. This bidirectional learning cycle directly improves process outcomes and customer confidence. Many features that started as “nice to have” become essential on the strength of robust, independent validation.

    Serving Bulk and Specialty Needs Without Sacrificing Quality

    Demand for 8-Quinolinecarbaldehyde ebbs and flows based on research cycles, patent expirations, and industrial applications for new ligands or enzyme mimetics. Some customers require kilogram quantities for routine process chemistry. Others need only a few grams of the highest-purity material for exploratory drug discovery. Both call for the same fundamental integrity in manufacture and handling. Meeting this wide spectrum of demand takes discipline in scheduling, clean-in-place routines, and modular packaging design. A half-finished batch languishing on the production line because of unclear forecasting risks not only material waste but also reduces cross-contamination protection for subsequent runs. Through experience, we’ve tightened queue management for this product, implemented rigorous in-process controls, and periodically run “gold standard” batches for internal benchmarking. Flexibility does not excuse compromise; experience guides every pivot.

    Practical Problems and Adapted Solutions

    No factory, whether automated or artisan, escapes occasional process upsets. 8-Quinolinecarbaldehyde highlights this reality. A sudden humidity spike once prompted visible clumping inside our product bags. Rather than write it off as a packaging issue, our technical team traced the source to a micro-leak in one section of the packaging line. They redesigned the closure, switched to double-seal bags, and trained packaging staff to recognize early warning signs. Similarly, a trend of customer queries about faint off-odors led us to trace raw solvent residues, resulting in additional in-vacuo drying steps and a modified storage protocol. Work like this reflects the daily grind of a hands-on producer—addressing each alert and steadily adding to operational wisdom. Our willingness to adjust, rather than blame externalities, distinguishes us from less invested operations.

    Listening to Communities and Customers

    Manufacturing specialty chemicals has changed as transparency and information sharing increase across the supply chain. Community expectations now extend beyond basic regulatory compliance. Equipment noise, waste streams, transport safety—our operations come under local scrutiny and customer audits. Dialogue and disclosure benefit both sides. Customer complaints, requests for lot data, or technical questions actually help us pinpoint improvement opportunities. For 8-Quinolinecarbaldehyde, periodic roundtables with end-users sometimes yield new requests for documentation or clarification. Some want supporting spectral files; others raise trace element concerns. No customer wants a surprise, especially in regulated or critical research work. By openly sharing our methodologies and data, we position ourselves as a partner—not just a remote supplier—with shared responsibility for outcome quality.

    Ongoing Training and Investment

    Maintaining excellence in manufacturing any specialty organic compound takes repeated training and investment. 8-Quinolinecarbaldehyde encapsulates this reality well. Every new technician joining our team completes hands-on instruction with experienced senior staff, focusing on the subtleties of each operation. The training does not simply run through stepwise checklists, but instead aims to impart an intuitive understanding of how the chemical behaves under diverse conditions. We routinely invest in upgraded analytical equipment and staff upskilling programs to ensure the product remains competitive and defensible. We view this ongoing commitment as inseparable from product quality—one supports the other without exception. Shortcuts would only show up as long-term risk, never as true savings.

    What Long-Range Experience Teaches Us

    Decades at the production front line instill a recognition: no compound’s value rests on purity and price alone. Our journey with 8-Quinolinecarbaldehyde traces a line through evolving standards, customer expectations, and technical obstacles. The compound’s reliability, reactivity, and behavior over shelf life all arise from regular, sometimes painstaking, adjustments and learning. Our process maps look different today than even a few years ago. Each change, whether prompted by new research, environmental regulation, or operational learning, reinforces a guiding principle—deep chemical know-how, operational commitment, and real transparency always pay off for users and producers alike.

    Molecule in Context—Trusted, Understood, Proven

    Most users of 8-Quinolinecarbaldehyde never see our reactors or staff in action, but the benefits of our approach show up where they matter: clean batch records, transparent analytical profiles, prompt answers, and product that performs just as the application demands. Customers facing demanding research deadlines, high-stakes registrations, or critical process optimizations deserve suppliers who truly understand their needs and the nuances of the molecules they provide. We’ve grown from each batch made and each question answered. In our field, sustained experience and direct feedback form the truest foundation for lasting quality and trust.