|
HS Code |
898503 |
| Chemical Name | Phenol, 2-Amino-4,5-Difluoro- |
| Molecular Formula | C6H5F2NO |
| Molecular Weight | 145.11 g/mol |
| Cas Number | 151254-75-8 |
| Appearance | Solid (usually crystalline or powder) |
| Solubility In Water | Slightly soluble |
| Synonyms | 2-Amino-4,5-difluorophenol |
| Structure | Benzene ring with amino group at position 2, hydroxyl at position 1, and fluorine atoms at positions 4 and 5 |
| Smiles | C1=C(C=C(C(=C1N)O)F)F |
| Inchi | InChI=1S/C6H5F2NO/c7-3-1-4(8)6(10)5(9)2-3/h1-2,10H,9H2 |
As an accredited Phenol, 2-Amino-4,5-Difluoro- factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging for Phenol, 2-Amino-4,5-Difluoro- (25g) is a tightly sealed amber glass bottle with a hazard warning label. |
| Shipping | **Shipping Description:** Phenol, 2-Amino-4,5-Difluoro- should be shipped in tightly sealed containers, clearly labeled and compliant with relevant hazardous material regulations. Protect from moisture, heat, and direct sunlight. Handle and transport according to local, national, and international regulations for hazardous chemicals, ensuring secure, upright placement and spill prevention. |
| Storage | Store Phenol, 2-Amino-4,5-Difluoro- in a tightly closed container, away from incompatible substances such as strong oxidizers and acids. Keep in a cool, dry, and well-ventilated area, protected from light and moisture. Use secondary containment to prevent spills and ensure labeling is clear. Access should be restricted to trained personnel with appropriate safety equipment. |
Competitive Phenol, 2-Amino-4,5-Difluoro- prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Every step in the synthesis of 2-Amino-4,5-Difluorophenol feels familiar after years of refining phenolic intermediates. This compound, known by its molecular structure featuring a phenolic ring substituted at the 2-position with an amino group and at the 4 and 5 positions by fluorine atoms, is not just another name in our catalog. Production floors, complex reactors, and the array of analytical reports coming off quality control labs—all bear witness to the attention that this specialty item demands. Both multi-step chemical synthesis and purification drive home the technical distinction between this substance and the more common phenols or even common fluoro-phenols.
Producers see nuances that casual users or marketers might skim past. Traditional phenol or basic aminophenols often dominate catalog spreads, but the difluoro substitution changes the conversation. Introducing two fluorines next to the amino group and hydroxyl alters everything from melting point to the chemical reactivity seen in downstream transformations. Batch yields rely heavily on solvent conditions and tight control over reaction atmospheres; even slight deviations can alter the product’s purity or its efficacy in sensitive applications.
On production lines, you can’t just substitute another phenolic intermediate and get the same result. The right 2-amino-4,5-difluoro is tricky. Careful control over by-products is necessary, with halogen placement influencing more than just a shift in absorption peaks or solubility; downstream users in fine chemicals or pharmaceutical development demand reproducibility in every kilogram shipped.
Processes inside the plant have taught us that certain molecules defy generalizations, and 2-Amino-4,5-Difluorophenol sits squarely among them. It tends to appear in the research portfolios of companies tackling new drug candidates or looking to unlock properties not available in standard aromatic amines or hydroxylated benzenes. The addition of fluorine atoms — not just one, but two, and at adjacent positions — means unique behavior both during synthesis and in the hands of formulators.
We see demand coming from specialty pharmaceutical projects, as well as innovators in agrochemicals aiming to tweak properties like lipophilicity or metabolic stability without resorting to disruptive new core structures. Simple phenols carry too much reactivity, often oxidizing where selectivity is needed. By contrast, introducing fluoro substituents at the 4 and 5 positions stabilizes the aromatic ring, making it more resistant to unwanted side reactions during downstream functionalizations. This has big implications for researchers planning multi-step transformations.
Performance in scale-up runs sets the actual capability apart from theory. Handling 2-Amino-4,5-Difluorophenol on larger equipment reveals its tendency to demand more intense attention from both engineering and quality teams. Unlike standard phenols, the difluorinated version exhibits a stronger dependency on the quality of raw materials and reaction atmosphere, and its production process remains sensitive even after repeated scale-up adjustments. Control over residual impurities must reach a higher level, as these can inhibit desired reactivity or cause toxicity problems during regulatory testing in pharmaceutical projects.
Quality checks in our operation are more than a regulatory necessity. We see the direct link between impurity profiles and customer outcomes—especially for a molecule with this substitution pattern. Spectral signatures, TAN (total acid number) values, and residual moisture measurements all provide clues that direct troubleshooting on the floor. During early production runs, even a variable such as the age of a catalyst or subtle changes in the work-up procedure have triggered quality deviations, highlighting the fragility of a product in this niche.
Some buyers bring in questions about trace metal content or demand customized documentation for regulatory filings. The day the reactors run, meticulous logs of each addition, every change in pressure or temperature, make up the backbone of a reliable supply record. End users expect not just an HPLC or GC-MS report, but process transparency when scaling from development to commercial quantities. Without this, instability in reactivity or a spike in impurities risks disrupting sensitive synthetic steps later in the value chain.
Here, the differences between this product and other phenolics become technical but meaningful: 2-Amino-4,5-Difluorophenol stays stable longer in storage, given proper containerization, yet picks up trace acidity faster than its monofluorinated cousins. Shipping procedures have evolved to take into account its higher chemical persistence against oxidizing environments—something customers appreciate when working at bench or pilot plant scales across long delivery chains.
Over time, batch records and incident reports have revealed which steps allow safe margin and which demand zero compromise. Typical phenolic syntheses may tolerate broader ranges in temperature, but the double fluorination combined with an amino group changes the entire thermodynamic landscape of these reactions. The exothermic profile of intermediate formation, for example, differs sharply from unsubstituted phenolic routes, causing torsion in equipment loads and sometimes unexpected heat release. Operators routinely recalibrate both analytical expectations and physical process controls to maintain the consistent profile our most exacting customers require.
A line worker or process chemist, standing over a glass reactor or reviewing a chromatogram, learns quickly that handling this molecule calls for respect. Isolation from organic solvents differs compared to basic aminophenols—the volatility and interaction with base or acid wash steps change the nature of in-plant safety protocols, directly impacting exposure control and maintenance planning. Over multiple campaigns, we’ve recognized strategic points where investment in upgraded extraction and purification technology yields real dividends in both batch-to-batch reproducibility and environmental compliance.
Scale-up required adaptation. Initial runs at kilogram level didn’t translate directly into commercial-scale output. Crystal formation induced clogging in legacy filtration equipment, prompting shifts to newer, higher-tolerance filter designs and tighter temperature regimen controls. Now, schedules for regular process re-validation grow from hands-on production data rather than simulation. Feedback from downstream formulators continues influencing our logistics—helping us prioritize robust shelf stability and protection from inadvertent moisture ingress during extended storage or shipping.
Across years of fulfilling orders, certain customer profiles come back repeatedly. The common thread is a need for high selectivity and stability during further synthesis, something that sets 2-Amino-4,5-Difluorophenol apart from other options. Medicinal chemistry teams pushing fluorinated building blocks into new candidate molecules, crop protection labs engineering molecules for both resistance and prolonged bioactivity, and electronics manufacturers exploring new insulating coatings all look for reliability and uniform performance.
Comparing alternatives, we watch how other difluorinated phenols sometimes lack the amino group’s reactivity, thereby reducing utility in coupling reactions or specific enzyme studies. Conversely, mono-fluorinated or unfluorinated aminophenols often underperform in stability or resistance to metabolic breakdown, particularly in biological screening assays. Repeated analysis under stress conditions—temperature cycling, exposure to ambient light, or agitation in mixed solvent systems—shows that our product consistently outlasts and outperforms these siblings.
Across all usage profiles, there remains an underlying expectation for process transparency. Leading research teams now tie procurement decisions to not only purity or the presence of traditional certificates of analysis, but also the technical narrative behind each batch—that includes handling, analytical logs, and problem-solving acumen of the manufacturing team. This dynamic, born from the realities of regulatory submission and patent filing, turns every batch shipped into an implicit partnership, backed by our in-plant experience and accumulated technical knowledge.
Buyers sometimes request explanations for price variations in this segment. The difference reflects the intense capital investment and risk mitigation practices built into our workflow. Double fluorination and amination processes require specialty reagents and entail longer synthesis times, more complex waste handling protocols, and tighter QA checkpoints. Direct labor commitment grows not only during production, but through analytical release and compliance reviews prior to dispatch. The global supply of certain key precursors, prone to volatility, impacts delivered costs well before raw intermediate barrels reach our plant’s loading dock.
Logistical support pulls in as much planning expertise as technical teams. Phenol, 2-Amino-4,5-Difluoro- rarely fits basic commodity chemical transit models. International carriage involves compliance with fluorinated compound handling ordinances. Our logistics group assembles custom packaging solutions adapted to the molecule’s persistence and sensitivity, balancing safety requirements with client expectations for timely, undamaged delivery. Shipment includes monitoring for security and environmental integrity throughout the route from warehouse to destination lab or factory.
Supply chain unpredictability never disappears, particularly for niche intermediates in a competitive innovation landscape. We’ve shifted to building working inventories and redundancy at both the raw material and finished goods stages, minimizing lead time impact on clients facing rapid project pivots or scale-ups. Each shipment factors in traceability and the documentation needed to ease regulatory filings in destination markets.
No batch comes off the line without feedback shaping the next run. Cross-team reviews dissect process deviations, from minor color shifts in the solid product to unexpected transient impurities in a tailing chromatographic peak. Meeting new customer requirements frequently means developing and validating entirely new analytical methods or pushing purification techniques beyond the routine. Regular training for technical staff and plant operators keeps risk of cross-contamination low and efficiency high, safeguarding the technical edge built into our process.
Process safety reviews share equal priority with yield optimization — this remains especially true as regulatory climates become more concerned with fluorinated compound stewardship. Even with recycled solvent recovery and state-of-the-art gas scrubbing, lessons learned feed system upgrades, new procedural benchmarks, and more effective engineering controls. Where upstream innovation through better catalyst systems or greener reagent options become accessible, we trial and validate these improvements, trying to pass sustainability gains directly to our clients.
The technical data flow—backed by product consistency over successive lots—forms the language of trust between manufacturer and client. We continue investing both in documentation standards and digital batch tracking, helping end-users trace every metric relevant to their studies or production. Certification audits, though demanding, make up the background of daily operations rather than disruptive special cases.
Rapid changes in global research, especially in pharmaceuticals and advanced material science, constantly shift the bar for chemical intermediates. Our position as primary manufacturer of 2-Amino-4,5-Difluorophenol gives us real-time insight into these evolving needs. New requests for enantiomeric excess control, advanced impurity mapping, or extended documentation requirements signal where markets head, well before the broader industry standards update officially.
Every order and conversation serves to expand the technical repertoire. Direct experience with regulatory audits in different regions, dealing with emerging environmental requirements for fluorinated materials, or supporting clients through scale-up data submission, all illustrate why the actual manufacturing track record remains the most valuable asset. Instead of speculative claims, production data and transparent quality management practices fill the gap, supporting both reliability and regulatory compliance.
Looking ahead, expanding the toolkit for monitoring in-process quality and integrating more predictive analytics into batch manufacturing will only improve performance and supply chain resilience. Training internal teams to adopt these new technologies matters most, since frontline process knowledge consistently proves itself as the foundation for every technical advance.
Years of producing 2-Amino-4,5-Difluorophenol have taught us that value in specialty chemical manufacturing grows out of hard-won technical insight and open communication with clients, not marketing abstraction. Each kilogram originates from choices made in real-time on the floor, under the guidance of experienced staff responding to both explicit specification sheets and the tacit expectations built into each customer’s process.
Differentiation in this sector ties directly back to visible performance in research and manufacturing results. The project teams depending upon our material rely not just on meeting current requirements, but on partnering with manufacturers committed to continuous improvement, transparent dialogue, and a willingness to evolve with client demands. The reassurance comes not from a name on a drums' label, but from accumulated cycles of innovation, production, feedback, and technical accountability.
New challenges and applications for 2-Amino-4,5-Difluorophenol will surely emerge. The commitment to producing exactly what research and industrial partners need underpins not only long-term relationships, but the advancement of entire fields where molecular precision and material reliability drive progress. Every operator, chemist, and logistics coordinator understands this. From plant floor to customer bench, performance is always personal—never generic.