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4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester

    • Product Name 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester
    • Alias 4-Hydroxy-8-(Trifluoromethyl)quinoline-3-carboxylic acid ethyl ester
    • Einecs 681290-54-0
    • 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

    741059

    Chemical Name 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester
    Molecular Formula C13H10F3NO3
    Molecular Weight 285.22 g/mol
    Cas Number NA
    Appearance Solid
    Purity Typically >98%
    Solubility Soluble in organic solvents such as DMSO and methanol
    Storage Conditions Store at 2-8°C, keep container tightly closed
    Smiles CCOC(=O)c1c(nc2ccc(cc2c1O)C(F)(F)F)
    Synonyms Ethyl 4-hydroxy-8-(trifluoromethyl)quinoline-3-carboxylate
    Application Research and chemical synthesis

    As an accredited 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 5 grams of 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester; labeled and securely capped.
    Shipping **Shipping Description:** 4-Hydroxy-8-(trifluoromethyl)quinoline-3-carboxylic ethyl ester is shipped in tightly sealed, chemical-resistant containers under ambient or cool conditions. Proper labeling and documentation accompany all shipments, complying with relevant transport regulations. Ensure protection from moisture, light, and physical damage. Handle as a laboratory chemical; avoid contact with incompatible substances during transit.
    Storage 4-Hydroxy-8-(Trifluoromethyl)quinoline-3-carboxylic ethyl ester should be stored in a tightly closed container, protected from light, moisture, and air. Store at room temperature (15–25°C) in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizers or acids. Proper labeling and safety data should accompany the storage to ensure safe handling and retrieval.
    Application of 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester

    Applications of 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester in Industrial Manufacturing

    As the direct manufacturer of 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester, we provide tailored support to downstream processing sectors that rely on this high-grade intermediate for regulated, performance-driven applications. The following segments illustrate its established roles in real-world industrial value chains.

    1. Pharmaceutical API Intermediate for Antibacterial Compound Synthesis

    Our material is primarily used as a building block in advanced stages of antibacterial active pharmaceutical ingredient synthesis, where the quinoline scaffold requires strict isomeric purity and traceability. Downstream producers introduce the ester during late-stage condensations and cyclization steps that precede API crystallization and purification. Its consistent batch quality ensures compliance with regulatory filings and supports the manufacture of both proprietary and generic medicines targeting bacterial infections.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice (GMP) for Active Pharmaceutical Ingredients
    • USP-NF Monographs for Quinolone Antibiotics Intermediates
    • EDQM CEP (Certificate of Suitability) procedures
    • 21 CFR Part 211 (US FDA cGMP for Finished Pharmaceuticals)

    Typical usage ratio

    • 0.7–1.3 molar equivalents relative to primary condensation partner, often calibrated to minimize residuals based on target yield and downstream purification constraints

    Downstream process integration

    • Introduced post-heterocyclic precursor formation, typically as a key condensation reactant during closed-vessel synthesis under dry nitrogen, followed by direct purification and coupling for further transformation to final API salt forms

    Final product types

    • Oral and parenteral quinolone-based antibacterial APIs (e.g., veterinary and human-use fluoroquinolones)
    • Finished pharmaceutical formulations such as coated tablets and injectable solutions assembled downstream by CMOs and global generics manufacturers

    2. Agrochemical Intermediate for Herbicide and Fungicide Synthesis

    The compound functions as a critical intermediate in the synthesis path of advanced fluorinated agrochemicals. Formulation plants incorporate this ester into multi-step processes to achieve high field-stability in the final crop protection agents. Typical process involves transesterification, hydrolysis, and selective fluorination for season-long control against target weed and fungal species, supporting regulatory submissions globally.

    Industry compliance standards

    • FAO/WHO Specifications for Pesticide Active Ingredients
    • REACH Annex VII-VIII registration requirements (EU only)
    • ISO 9001:2015 for Quality Management in Agrochemical Manufacturing
    • GLP (Good Laboratory Practice) for toxicity and environmental testing

    Typical usage ratio

    • 1.0–2.5% by mass in the intermediate reaction mixture, based on process optimization for overall yield and fluorine incorporation efficiency; ratio tailored to target activity and residual profile

    Downstream process integration

    • Charged during mid-stage synthesis after initial aromatic halogenation, serving as the substrate for subsequent carboxylate functionalization and ester hydrolysis; integration point is prior to active ingredient isolation and crystallization

    Final product types

    • Fluorinated herbicidal concentrates for broadleaf and grass weed control
    • Systemic fungicide technicals supplied to global formulation plants
    • Granular pre-emergent crop protection products for international seed treatment suppliers

    3. Specialty Chemical Intermediate for Electronic Materials Manufacturing

    This intermediate sees application in the controlled synthesis of high-value quinoline derivatives used as precursors in liquid crystal display (LCD) alignment layers and specialty coatings for electronic substrates. Advanced fabrication lines employ this material in a tightly controlled setting to ensure dielectric and optical precision, which is essential for large-area panel and microdevice assembly.

    Industry compliance standards

    • IPC-4101 (Specification for Base Materials for Printed Boards)
    • ISO 14001:2015 (Environmental Management for Electronic Chemical Producers)
    • RoHS Directive (2011/65/EU) for Substance Restrictions in Electronic Equipment
    • SEMI S2/S24 (Semiconductor Equipment and Materials International Environmental, Health, and Safety Guidelines)

    Typical usage ratio

    • 0.3–1.1 wt% within specialty intermediate blends, depending on final layer thickness and required molecular alignment; usage is defined by customer process engineering validation

    Downstream process integration

    • Incorporated at the precursor synthesis stage for alignment layer polymers, followed by purification, polymerization, and downstream formulation into high-grade electronic coatings

    Final product types

    • Liquid crystal alignment layer precursors for panel manufacturers
    • Dielectric coatings for flexible display films
    • Electronic substrate treatment chemicals sold to advanced semiconductor fabrication plants

    4. Reference Compound for Analytical Standards Production

    Accredited laboratories and fine chemical producers source this compound to prepare validated analytical standards, essential for trace-level quantification of quinoline derivatives in pharmaceuticals, environmental residues, and food safety testing. Production protocols demand ultra-high purity and documented chain-of-custody, with the raw material integrated in the multi-step synthesis, calibration, and validation process for certified reference materials.

    Industry compliance standards

    • ISO 17034:2016 (General Requirements for the Competence of Reference Material Producers)
    • ISO/IEC 17025:2017 (Testing and Calibration Laboratories Accreditation)
    • USP General Chapter <11> (Reference Standards)
    • OECD GLP (for documentation on analytical method validation)

    Typical usage ratio

    • Variable, determined by reference material concentration requirements—generally 98.0–100.0% assay on dried basis for direct standard preparation, with sub-mg to gram-scale massing according to calibration protocol

    Downstream process integration

    • Dissolved and further purified for use as analytical reference, subjected to a process including crystallization, microanalysis, trace impurity testing, and certified packaging for CRM issuance

    Final product types

    • Certified Reference Materials (CRM) for HPLC and GC calibration
    • In-house and commercially available analytical standards for impurity profiling
    • Control solutions used in regulated release testing and quality investigations of finished and intermediate products
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    Certification & Compliance
    More Introduction

    4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester: Product Insight from the Manufacturer

    Understanding the Value of 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester in Research and Industry

    Every step we take in the lab starts with a raw material that delivers consistent performance batch after batch. Years of working directly with researchers, process chemists, and pilot plant teams have shown us the kind of reliability that's required from compounds like 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester. This compound, identified by the molecular formula C13H10F3NO3, builds a bridge between traditional quinoline chemistry and the expanding field of trifluoromethyl-substituted aromatic platforms. Its structure, with both ethyl ester and trifluoromethyl functional groups, brings unique properties that don't show up in similar quinolines or benzoic acid derivatives.

    The Model and What Sets This Batch Apart

    We label this product under our in-house batch code QN3C-4H8TF-EE, a system designed to track everything from raw materials to finished packaging. From sourcing, we select precursors that pass extra rounds of GC-MS screening, especially for trifluoromethylated aromatics where trace impurities can throw off key reactions. Density, color, and melting point all fall within a range we've locked in from test records, not general references. The powder offers a faint yellow appearance, reflective of its high purity and controlled moisture content. Early users told us that avoidable contamination could cost days of troubleshooting, so we tightened the filtration and recrystallization stages—right through to our nitrogen atmosphere packing.

    Each kilogram, shipped in tightly sealed containers, shows off a material free from silica powder residue and unreacted quinoline. Our lab team runs HPLC analysis on samples at multiple stages, looking for those hard-to-remove byproducts—especially esters or acids left from the final condensation. Reliability in these figures means that process chemists get predictable solubility and reactivity every time. We're driven by the feedback loop with real scientists; someone spots a residue issue, we go back over the process and improve the next batch. This ongoing cycle shapes every kilogram we send out.

    Core Applications and Why People Choose This Compound

    As synthetic chemists, we see each functional group as an entry point for transformation. The trifluoromethyl on the quinoline ring isn’t there for show—it controls electron density, giving this molecule the kind of reactivity that many pharmaceuticals and agrochemical intermediates demand. In our own development runs, acylations and cross-coupling reactions behave more predictably thanks to this substituent. The ethyl ester group opens up downstream functionalization, letting teams later hydrolyze to the acid or use the ester in multi-step sequences without unnecessary protection/deprotection cycles.

    Medicinal chemists who visit our pilot plant often run SAR studies and need a reliable supply to push multiple analogues in parallel. Any unexpected shift in melting point, color, or solubility delays entire libraries of compounds. We've seen how inconsistent batches can set back a full quarter of discovery work. Our process gives transparent traceability and detailed certificates of analysis so every lab can move forward with confidence. Our compound has become a staple in libraries exploring kinase inhibition, fluorescence labeling, and modified peptidomimetics. In crop science, its structural motif brings bioactive diversity, acting as a backbone for pro-herbicides and experimental fungicides.

    Comparing to Similar Quinoline and Fluorinated Compounds

    The field of quinoline derivatives keeps branching out, but adding a trifluoromethyl group at the 8-position shifts both physical behavior and chemical reactivity compared to more classic analogues. Many manufacturers push the basic quinoline-3-carboxylic acids, but without the trifluoromethyl group, those molecules don’t pack the same electronegativity or metabolic resistance in biological systems. This ester, unlike the free acid form, handles milder, non-aqueous synthetic protocols with less hydrolysis risk and stores longer under typical conditions.

    Other products, like simple 4-hydroxyquinoline or methyl esters, find use in research but come with lower lipophilicity and different aromatics reactivity. 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester branches away from those by matching pharmaceutical synthons that need both hard/soft nucleophile compatibility and late-stage trifluoromethyl engagements. We’ve spent years tweaking the route for this compound; for example, controlling N-oxidation side reactions means our batches won’t give headaches during downstream reductions or oxidations, something that occasionally plagues competitors working with harsh oxidizers.

    Main Issues with Traditional Supply, and How We Address Them

    Working hands-on in the production line, we've seen the chain of custody issues that come with third-party sourcing. There’s the risk of cross-contamination in facilities that don’t handle trifluoromethyl chemistry as a focused specialty. Multi-purpose reactors occasionally leave behind residues from prior runs, which slip past standard checks and end up as trace contamination. By dedicating glass-lined and stainless-steel equipment to this class of compounds, we guard each lot and reduce cleaning validation steps. Our team runs extra spot-checks on reaction intermediates and doesn’t batch-blend incoming lots, avoiding consistency issues that frustrate downstream users.

    Many organizations on the market buy tech-grade material from bulk traders and relabel in small bottles, cutting out steps like multi-solvent washes or extra chromatography passes. We cut out that practice and bring the compound straight out of our own reactors, so we control the entire chain. Over time, feedback pointed to subtle residuals—catalyst carryover, solvent traces—that have no place in regulated or high-throughput applications. We answer that by using high-purity solvents, freshly distilled acids, and sealed nitrogen atmosphere lines, reducing these unwanted extras to non-detectable levels.

    The Real-World Importance of Product Consistency

    Every year, our quality team fields requests for time-critical syntheses that depend on lot-to-lot uniformity. For advanced medicinal studies or high-throughput screening, a spike in impurity means lost runs or ambiguous bioactivity data. We've learned not to compromise on drying and polymorph control. Our controlled temperature drying, followed by vacuum purging, keeps moisture below 0.2% and preserves the same crystalline variant, so users don’t run into sudden undissolved solids or precipitation during scale-up.

    During customer audits, we've watched researchers compare our materials against off-the-shelf competitive products, layering TLC and NMR data side by side. Our batches consistently avoid the amine and nitro byproducts that can mimic key peaks, causing misinterpretation of spectral data. This matters the most to those who work with sensitive downstream transformations, where even a sliver of impurity can slowly deactivate catalysts or introduce side products that destroy yields. Our feedback channels run both ways—if a lab flags something, we review the entire batch history and isolate the root cause, whether that means an upstream solvent issue or operator error on the recrystallization line.

    Supporting Advanced Research and Process Optimization

    We see our role as more than just supplying a chemical. We become a partner in discovery and production. When working with our 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester, researchers tap into a platform compatible with array synthesis and automated flow chemistry, thanks to our rigor in drying and granulation. The predictable melting range and solid-state form fit the needs of automated dosing systems without the caking or bridging problems found with hygroscopic or oil-forming quinoline acids.

    Another advantage lies in solubility and particle size. By keeping size distribution tight—targeting 60–120 microns—we avoid problems during dissolution and filtration. Research chemists tell us they favor materials that dissolve quickly in DMSO, DMF, and polar organics. In our solvent selection studies, we've measured full dissolution at moderate temperatures in less than twenty minutes, an edge for time-pressured projects. Material consistency also ties into safety: no clumping, no airborne fines, less exposure risk and easier weighing.

    Environmental Responsibility and Worker Safety in Manufacturing

    Decades in manufacturing have taught us the price of shortcuts. Our approach demands that ethyl esters and trifluoromethyl intermediates get produced with full closed-loop waste protocols. Direct experience with spills showed early on that open vessels or aging reactor seals can leak volatile organics, so we retrofitted production bays with triple-seal lids, solvent recovery towers, and on-line VOC monitoring. Worker safety programs get reinforced every season—no matter how familiar a crew is with the process, regular retraining on mask usage and local exhaust systems eliminates complacency.

    Compliance drives every modification we make, not just as a box-ticking exercise. We audit effluent and air emissions, running in-plant GC checks to keep fluorinated waste out of groundwater and municipal systems. No one in this industry benefits from short-term thinking—regular maintenance, tight batch records, and operator accountability cost time up front, but protect both workers and the environment for the long haul. Experience taught us that no shortcut survives customer scrutiny or regulatory inspection. We stay ahead of reporting and make continual changes based on site inspections and group taskforce recommendations.

    Common Laboratory and Industrial Uses—With Practical Experience

    Our team works directly with academic labs moving from bench to pilot scale. The robust ester form means the molecule handles a wide range of catalytic and non-catalytic conditions, moving from copper-catalyzed arylation through to late-stage Suzuki coupling. Feedback shows the compound tolerates mild acids, bases, and metal catalysts—attributes that save time for labs worried about premature hydrolysis or backbone rearrangement. It’s not just about the synthetic drive; in fluorescence tagging experiments, UV-Vis spectra show sharp, reproducible peaks, a boon in trace impurity analysis and photophysical research.

    We also support process engineers scaling up kilograms for clinical candidate production. The ease of purification, from silica gel columns through automated prep HPLC, comes directly from tight process control upstream. Crude product out of the reactor already runs above 95% area by HPLC, cutting down the number of purification steps needed. Users appreciate the stability under ambient conditions, with no color change or odor formation even after weeks in storage, as shown in our long-term shelf life studies.

    Future Trends: Where Development Heads From Here

    Over time, the push toward greener chemistry means every trifluoromethyl building block draws scrutiny. We have responded by deploying lower-temperature processes and greener reagents in the key trifluorination steps. Recent advances in electrochemical methodologies raise the possibility of even cleaner generations, and we’re already testing continuous-flow adaptations to cut batch times while reducing operator involvement.

    Scientific priorities shift, but certain needs stay the same—documented purity, open lot histories, and transparent supply chains. We continually adapt by working alongside researchers to test functional group transformations and by keeping open lines for technical support. The more direct stories we get from users, the faster we can benchmark new improvements, whether that's changing dehydration protocols or bringing a new drying technique online to further reduce trace water content.

    How Real-World Experience Shapes Our Offering

    As a manufacturer, our responsibility does not end with shipping out a drum of product. We solve problems side by side with customers—running pilot reactions with them or trouble-shooting crystallization issues in our own plant before suggesting changes. Regular site visits give us real insight into new bottlenecks, whether in lyophilization, solid dosing, or waste handling. The closer we get to the actual challenges in research and industry, the better we can craft compounds like this for next-generation synthesis.

    We don’t isolate ourselves from feedback. Every interaction—be it a delayed delivery or a surprised scientist noticing an unusually high yield—loops back and sharpens our process. Responsibility means more than paperwork; it comes from listening to the demands of real chemistry, updating processes, and sharing clear, honest data with every delivery. That's the ground reality of making 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester, batch after batch, for applications that go well beyond a simple flask on a warm bench.

    Conclusion: Building Trust Through Experience and Accountability

    Our journey with 4-Hydroxy-8-(Trifluoromethyl)Quinoline-3-Carboxylic Ethyl Ester is not just about chemistry, but about trust—between supplier and scientist, between manufacturer and the multitude of industries that rely on consistent, high-quality compounds for genuine scientific progress. With every inquiry, shipment, and technical query, we bring firsthand experience, the willingness to improve, and a genuine investment in advancing the field for everyone who counts on us for success in their own work.