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L-3,5-Difluorophe

    • Product Name L-3,5-Difluorophe
    • Alias 6,8-difluoro-7-(hydroxyimino)-1,4-dihydroquinoline-3-carbonitrile
    • Einecs NA
    • 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
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    Specifications

    HS Code

    512777

    Product Name L-3,5-Difluorophe
    Molecular Formula C9H8F2NO2
    Molar Mass 199.16 g/mol
    Appearance White to off-white solid
    Purity ≥98%
    Cas Number 1020895-84-6
    Melting Point 120-124°C
    Solubility Slightly soluble in water
    Storage Temperature 2-8°C
    Optical Rotation +15° to +17° (c=1, MeOH)
    Synonyms L-3,5-Difluorophenylalanine
    Smiles N[C@@H](CC1=CC(F)=CC(F)=C1)C(=O)O
    Application Pharmaceutical intermediate

    As an accredited L-3,5-Difluorophe factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing L-3,5-Difluorophe is packaged in a 25g amber glass bottle with a secure screw cap, labeled with hazard and product details.
    Shipping L-3,5-Difluorophe is shipped in sealed, chemically-resistant containers to prevent contamination and ensure safety during transit. It is packaged according to hazardous material regulations, typically transported by certified carriers with proper documentation. Temperature and handling precautions are maintained throughout to preserve the compound's integrity and comply with regulatory requirements.
    Storage **L-3,5-Difluorophe** should be stored in a tightly sealed container, protected from light and moisture. Keep in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizers or acids. Temperature should generally be at 2–8°C (refrigerator). Properly label the storage container and avoid exposure to heat or direct sunlight to maintain chemical stability.
    Application of L-3,5-Difluorophe

    Applications of L-3,5-Difluorophe in Industrial Manufacturing

    L-3,5-Difluorophe serves as a specialized building block in several high-value sectors, particularly for advanced synthesis where site-specific fluorine incorporation delivers performance benefits. As a direct manufacturer, we supply this key intermediate to downstream customers with strict requirements on purity control, traceability, and performance consistency. Below, you will find the detailed industrial implementation scenarios, each targeting a unique downstream sector with precise compliance, process, and usage guidelines.

    1. Pharmaceutical API Synthesis: Fluorinated Aromatic Intermediates

    Pharmaceutical producers deploy our material as an essential aromatic intermediate in manufacturing active pharmaceutical ingredients, especially for next-generation anti-infectives and central nervous system (CNS) compounds. L-3,5-Difluorophe enters multi-step syntheses to introduce fluorinated phenyl units, offering metabolic stability advantages and precise molecular tuning for targeted drugs. Downstream clients benefit from batch traceability, impurity profiling, and consistency required for regulatory DMF submissions and validation processes.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for APIs
    • 21 CFR Part 211 (US FDA cGMP)
    • European Pharmacopoeia monograph 5.10 (control of impurities)
    • Chinese Pharmacopoeia Quality Standards for Chemical Drug Intermediates

    Typical usage ratio

    • Mol ratio: 0.9–1.2 equivalents per step, adjusted per target molecule synthesis design and route efficiency

    Downstream process integration

    • Chlorination, acylation, and coupling stages for final API assembly; material enters after initial aromatic ring synthesis, acts as a key functionalizing reagent

    Final product types

    • Fluorinated API precursors (e.g., CNS-active drug bases, advanced intermediates for anti-infectives)
    • Final pharmaceutical molecules with optimized pharmacokinetic profiles

    2. Agrochemical Synthesis: Fluorinated Herbicide and Fungicide Component

    Major agrochemical formulators select our raw material when synthesizing herbicide and fungicide active substances that rely on difluorinated aromatics for bioactivity. As fluorine-modified rings impart pest selectivity and enhance field persistence, technical production runs require rigorous input qualification and batch analytics to comply with increasingly tight regulatory benchmarks for agrochemical supply chains.

    Industry compliance standards

    • FAO/WHO JMPR Pesticide Specifications
    • ISO 9001:2015 Quality Management for Agrochemical Ingredients
    • REACH Regulation (EC) No 1907/2006 registration (where applicable)

    Typical usage ratio

    • Reagent ratio: 1.0–1.3 equivalents based on target synthesis yields and balance of by-product minimization

    Downstream process integration

    • Intermediate building block for Suzuki and Buchwald–Hartwig coupling reactions; enters synthesis at pre-active ingredient conjugation step for heterocyclic core modifications

    Final product types

    • Difluorinated herbicide technical grade
    • Fungicide actives with prolonged soil persistence and improved selectivity
    • Registered plant protection formulations

    3. Advanced Material Synthesis: Specialty Polymer Additives

    Specialty polymer manufacturers incorporate our product for polymer modification where fluorine integration enhances weatherability, dielectric properties, and thermal resistance in high-performance plastics. The aromatic fluorinated motif delivers enhancements for niche electronic, aerospace, and engineering plastics, with each bulk batch certified for contaminant removal and controlled moisture content to avoid catalyst fouling or inhomogeneous polymerization during downstream processes.

    Industry compliance standards

    • ISO 9001:2015 for polymer raw materials
    • RoHS (Restriction of Hazardous Substances) for electronics applications
    • UL 94 flammability requirements (for end-use polymer validation)

    Typical usage ratio

    • Feedstock: 0.5–2.5 wt% as functionalized monomer input, ceiling determined after pilot batch property balancing

    Downstream process integration

    • Introduced at the monomer functionalization stage or as a chain transfer agent in controlled radical and condensation polymerizations

    Final product types

    • High-dielectric engineering plastics
    • Fluoropolymer-modified resins for circuit boards
    • Weather-resistant aerospace films

    4. Liquid Crystal Display (LCD) and Organic Electronics Precursors

    Producers in the display and organic semiconductor sector utilize difluorinated aromatics as precision intermediates for advanced liquid crystal compounds and organic semiconductors. The material supports high-mobility, high-contrast pixel elements and stable organic field-effect transistor (OFET) layers. Consistency in para and ortho-fluorine placement is critical for optical and charge transport properties, demanding thorough QA documentation on each lot shipped for pilot and mass production use.

    Industry compliance standards

    • IEC 62321 (RoHS content analysis for electronics)
    • ISO 14001 Environmental Management in electronic materials supply
    • QPL (Qualified Product List) as per IEC/EN requirements for critical LCD inputs

    Typical usage ratio

    • Monomer/conjugation ratios: 0.8–1.0 equivalents, tailored per complexation or polymeric chain design

    Downstream process integration

    • Deployed at the molecular alignment/heterocycle synthesis stage for display pixels and at pre-polymerization step in OFET and OLED manufacturing

    Final product types

    • Liquid crystal monomers for high-resolution LCD panels
    • Organic semiconductor layers for OFETs and display drivers
    • OLED intermediates for lighting and high-definition screens

    5. Fluorinated Aroma and Flavor Ingredient Synthesis

    Leading fragrance and flavor compound producers apply this difluorinated aromatic substrate to create unique aromatic molecules where fluorine centers influence volatility, stability, and perception thresholds. High process purity and controlled by-product levels meet the critical safety needs for ingestible and dermal flavor/aroma applications, supporting transparent dossier preparation for regulatory authority submissions within flavor and fragrance formulation frameworks.

    Industry compliance standards

    • IFRA (International Fragrance Association) safety standards
    • FEMA GRAS (Flavor and Extract Manufacturers Association Generally Recognized as Safe)
    • EU Regulation (EC) No 1334/2008 on flavorings

    Typical usage ratio

    • Input: 0.2–1.5 wt% in multi-step syntheses, adjusted for target molecule sensory outcomes and volatility tuning

    Downstream process integration

    • Enters as a substituted aromatic precursor during Friedel–Crafts acylation, reduction, or nucleophilic substitution stages before esterification or aldehyde formation

    Final product types

    • Fluorinated aromatic aldehydes for flavor and aroma creation
    • Stable fragrance esters suitable for fine fragrances and personal care products
    Free Quote

    Competitive L-3,5-Difluorophe prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    L-3,5-Difluorophe: Direct From the Maker’s Hands

    What Sets L-3,5-Difluorophe Apart in Fluorinated Chemistry

    In our labs, L-3,5-Difluorophe stands out because of how it transforms both workflow efficiency and outcome purity when working with aromatic fluorine compounds. Building this product begins with pharmaceutical-grade raw materials, handled by chemists trained to recognize minor variables that less experienced hands overlook. Genuine control at the source lends predictable results, batch after batch. From the first day we offered L-3,5-Difluorophe, our team focused less on catalog numbers and more on feedback from researchers and formulation teams who pressed us for cleaner profiles, fewer side products, and the sort of documentation that saves hours down the line.

    The backbone of this compound—3,5-difluorophenyl—opens up halogen substituent chemistry for both research and finished-drug pipeline teams. It’s become a staple for teams chasing precision in structure-activity relationship studies. Subtle fluorine placement matters: ortho, para, meta combinations bring noticeable changes to metabolic resistance, solubility, and sometimes, the entire fate of a lead compound. We hear from chemists who tried generic multi-fluorinated compounds, only to wrestle with unpredictability or background contaminants. By handling every run internally, our facility eliminates the usual unknowns that come from a loose supply chain.

    Our Manufacturing Lens: Quality, Consistency, and Small Details

    Process knowledge sits at the core of our production pipeline. Our reactors aren’t just regular batch vessels; they are custom-fitted with real-time analysis—GC-MS and HPLC—tailored for difluorophenyl formation. Chemists man the controls, troubleshooting on the fly, recording minor temperature or solvent adjustments. Over years, small optimizations crop up. For example, something as simple as phase separation at 8°C instead of 10°C can impact the final yield, reducing isomeric byproducts that are hard to spot on a spec sheet but show up in your NMR results down the line.

    Our team believes that purity speaks louder than a specification number. Typical batches of L-3,5-Difluorophe hit purities above 99.5%, with water content and heavy-metal traces tracked down to ppm levels. Documentation isn’t just available—it’s generated automatically for each lot and double-checked by two pairs of eyes before a shipment leaves the dock. Researchers have recounted times when they caught minor performance shifts mid-experiment, only to discover the upstream compound’s purity had fluctuated. By managing the full synthesis, isolation, and packaging stages, our people hold full responsibility, so customers don’t have to hedge their bets on lot-to-lot drift.

    Molecular Precision: Why 3,5-Difluoro Matters

    Aromatic fluorine introduction isn’t just about random halogen swaps. The 3,5-difluoro motif allows medicinal chemists to probe interactions inaccessible to mono-substituted phenyls. Both fluorine atoms provide electron-withdrawing strength, affecting pi cloud density and shifting reactivity in target binding pockets. Several recent publications highlight how switching from 2,4- to 3,5-difluoro can cut metabolic oxidation rates or torque a molecule’s hydrophobic character.

    Our experience tracks with these findings. When formulating kinase inhibitors, one group saw higher selectivity after adapting their core with our L-3,5-Difluorophe. We receive occasional requests to customize further—sometimes pushing for even purer material, other times asking for the compound in solution, ready to inject into a reaction. We work those signals back into production, tweaking drying and filtration in ways that others rarely bother to, because the devil really does hide in residual solvent or fine dust.

    Label Behind the Name: What L-3,5-Difluorophe Means in Practice

    Product names get tossed around with little care for nuance. In our workspace, “L” marks a distinct batch history: material synthesized and isolated in a single, traceable lineage, not pieced together from multiple shipments or brokers. Teams reporting variable results often find these differences crop up because one product stream gets filled by leftovers—ours doesn’t. We track feedstock, monitor stir-vessel loads, and restrict permit limits to protect consistency. No mixed-source stock, no repackaged drum fills.

    This model gives formulation chemists confidence when planning sensitive runs or upscaling from research to kilo-labs. Our process logs trace every gram, and we store retains for possible reanalysis, so questions can be answered. Each shipment comes directly from the original manufacture, untouched by middlemen and consolidated with nothing. That guarantee has meant more trouble for us—no blending, no shortcuts—but changes everything for those who need clarity under a microscope, not wishful promises.

    Specification by the Real-World Numbers

    Most research teams expect to receive pure, white, crystalline solid L-3,5-Difluorophe with batch certificates that confirm the essentials: purity above 99.5%, water below 0.1%, and reliable melting points. But there’s more to trust than a number. Standard spectrometric readouts, with NMR and mass spec, verify that the compound matches the target: no ghost peaks, no sulfur or phosphorus residues.

    In our packaging, air and moisture exposure risks are cut through argon-purged containers, triple-sealed to fight atmospheric contamination. Once we tried vacuum-sealing as a test, only to find trace solvent caused film dissolution—the tiniest oversight can spiral in a sensitive synthesis. The result: nothing leaves the facility until it meets these standards, each drum labeled with a scannable code that takes you directly to that product’s real-time data log.

    Applications Beyond the Obvious: L-3,5-Difluorophe in the Field

    Medicinal chemistry has always been a primary home for L-3,5-Difluorophe, but clients working in material science, agrochemical testing, and OLED design now reach for it, too. University collaboration opened our eyes to less traditional uses—probes, monomeric units, even specialty dyes. In every application, trace metallics spell trouble for high-sensitivity detection or downstream polymerization. Our own chemical engineers leverage the product in custom ligand synthesis, taking full control over side reactions by capitalizing on predictable, clean performance from every bottle.

    Every year, we see new uses surface. Once, a research customer built a diagnostic imaging agent using our compound as a key intermediate. Their feedback drove us to improve post-filtration drying at a critical point, since even a 0.02% uptick in moisture affected spectral clarity. That kind of loop—between the synthetic floor and academic pioneers—keeps us disciplined, never tempted to cut corners, no matter how small or obscure the order might seem.

    What Direct Manufacturing Delivers That Traders Cannot

    Anyone can fill an order with L-3,5-Difluorophe sourced through layers of brokers, each step adding uncertainty. Those handling logistics never witness the nuances: changing solvent lots, pressure deviations, or short-delay shipments leaving product to settle an extra hour. By running our own reactors and packaging lines, feedback loops close fast. Years ago, a minor contaminant crept in because of an out-of-spec cleaning solvent—spotted, traced, and resolved before a single drum left the plant floor. Customers received early warning, and not a single research pathway failed because of it.

    Shipping direct from the plant strengthens document control, real-time shelf-life tracking, and traceability. We don’t remove or alter original certificates to fit downstream branding or relabel timelines. Working hands-on in the facility means product knowledge isn’t diluted. If a researcher asks about the results of a particular batch or wants to know solvent use by date, they hear straight from the source, not filtered through resellers disconnected from the creation.

    Our batch logs grow with each lot, weighed against the lessons of prior years. We store every anomaly and corrective action. These ongoing notes add layers to future runs; chemists and operators meet every Monday to scrutinize outcomes, not as a box-ticking exercise but out of collective pride. Over time, this hands-on learning has driven down variation and empowered us to lean on process data instead of supplier assurances or standards pulled from anonymous charts.

    Differences Versus General-Purpose Fluorinated Phenyls

    From firsthand experience, generic difluorophenyl intermediates—often 2,4- or single-substitute versions—don’t match the reactivity window of L-3,5-Difluorophe. It comes down to the molecular fingerprint: the 3,5-fluorine pattern shifts both steric footprint and electron density, creating more consistent behavior during cross-coupling or functionalization. Teams using our product call out sharper selectivity in Suzuki and Buchwald reactions. Lower background impurity levels reduce side product headaches, meaning more target hits and less purification effort.

    Commodity materials, bought on the open market, arrive in glossy packaging but often bring unknown history. Moisture or trace acid traces, picked up in shipment, have triggered failed catalyst runs—stories we hear regularly in troubleshooting calls. By providing full documentation and a single chain of custody, we erase that uncertainty. Material science researchers see sharper spectral profiles and less degradation, while pharmaceutical formulators see major boosts in scale-up reproducibility.

    Our decision to keep every production stage in-house—sourcing, reaction, isolation, and final packaging—wasn’t made lightly. It meant holding back on capacity increases in favor of traceability. Over years, that choice paid off in reduced claims, sharper analytical data, and growing credibility with partners willing to bet their research timelines on us. Real differences show both in the numbers and in the health of the teams who trust their progress to a product made with their own standards in mind.

    Addressing Common Issues: Trace Residues and Side Reactions

    Every experienced chemist has struggled with ghost contaminants: a tinny residue after reduction, an unexplained yellow color at the end of crystallization. L-3,5-Difluorophe, manufactured on our lines, comes direct from a closed system, minimizing the carryover of fine metallics or side products. Instead of hunting through questionable documentation or running extra preps, our partners access full disclosure—spectral scans, cleaning histories, and run logs that reveal each variable.

    Teams routinely call us about trouble with moisture-sensitive stages in peptide syntheses or C-N coupling. High-performance packaging protects against overnight humidity shifts or months at ambient storage. Clarity about each lot’s exact trace content means less finger-pointing if an experiment stalls. We cut out chase-the-contaminant cycles through up-front openness, saving days or weeks in troubleshooting, and enabling teams to stay focused on results instead of backtracking.

    Supporting Progress: Customization, Scale, and Real-Fit Service

    Industrial labs and university research programs often ask for adjustments: custom aliquots, pre-dissolved solutions, and specialized blending for rare reaction conditions. Without flexibility and a direct line to the people making the compound, these requests bounce between middlemen. Our technical team has built protocols for made-to-order packaging, fast-track isolations, and even rush reanalysis. We batch samples for rapid pilot-scale synthesis runs, tailored by the same chemists who scale metric tons for established pharma pipelines.

    Having the actual syntheses in-house brings accountability. If something shifts—crystal habit, color, trace odor—our people troubleshoot fast, supplying early insight and quick remediation. Adjustments are tested on the line, then shared openly with collaborators to speed up critical research. This open, practical, hands-on structure collapses the lag time between field issues and actionable fixes. Over years, direct feedback from both industrial and academic users drove us toward continuous process improvements, not static guidelines on a shelf.

    Ensuring Reliability Into the Future

    The future of niche aromatic intermediates like L-3,5-Difluorophe depends on the kind of long-term commitment rarely seen in short-term sourcing markets. From raw-material security audits to partnership with solvent and reagent suppliers who match our standards, every decision pivots on preserving the reliability that underpins high-value research.

    We invest in analytical upgrades each time a new challenge emerges—a new LC-MS’s lower detection threshold or a tweak to the melting point protocol that sharpens lot-to-lot results. Never content with benchmarks, our internal KPIs track shipping deviations, complaint rates, and purity drift. Each year, we present anonymized case studies to industry partners, showing not only failures and fixes but why they matter in real-world R&D.

    Talent development forms another layer of reliability. Chemists learn by shadowing senior staff throughout every synthesis, packaging, and QC round. Accountability isn’t a buzz-word but part of the daily routine—each signed batch brings personal pride and company credibility, linking face to outcome.

    Summary View: More Than a Chemical, It’s a Partnership

    L-3,5-Difluorophe reflects our manufacturing philosophy: detail-focused, feedback-driven, and fiercely protective of reliability. Rather than treat this molecule as a commodity, we handle it as both a responsibility and an opportunity for partnership. Every lot is more than a reagent—it’s a segment of shared progress for those pushing boundaries in science and industry.

    Users who choose our product know that from first inquiry to final documentation handoff, they deal with the people who make the compound, solve issues on the spot, and adapt to evolving research needs. That link—between creator and user—changes how progress is made, consolidating trust through transparency, experience, and the quiet satisfaction that only comes from owning the full journey from synthesis to shipment. In this way, L-3,5-Difluorophe carries forward not just molecular function but a dose of human effort invested in every shipment.