Anhui Liwei Chemical Co., Limited
Products

4-(1-Hydroxy-2-(Methylamino)Ethyl)Phenol


    • Product Name 4-(1-Hydroxy-2-(Methylamino)Ethyl)Phenol
    • Alias Epinephrine
    • Einecs 200-638-1
    • Mininmum Order 1 g
    • Factory Site Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry sales2@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    120891

    Iupac Name 4-(1-hydroxy-2-(methylamino)ethyl)phenol
    Common Name Epinephrine
    Molecular Formula C9H13NO3
    Molecular Weight 183.21 g/mol
    Cas Number 51-43-4
    Appearance White to off-white crystalline powder
    Melting Point 211–215°C
    Solubility Soluble in water and ethanol
    Density 1.28 g/cm³
    Pka 8.6 (phenolic OH), 9.9 (amino group)
    Logp -1.37
    Structure Type Phenylethanolamine derivative
    Smiles CNCC(C1=CC=C(C=C1)O)O
    Inchi InChI=1S/C9H13NO3/c1-10-5-9(13)6-2-7(11)4-8(12)3-6/h2-4,9-13H,5H2,1H3

    As an accredited 4-(1-Hydroxy-2-(Methylamino)Ethyl)Phenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The chemical is supplied in a sealed 100g amber glass bottle with a tamper-evident cap and hazard labeling for laboratory use.
    Shipping Shipping of **4-(1-Hydroxy-2-(methylamino)ethyl)phenol** requires secure packaging, labeling as a chemical, and compliance with all relevant regulations (such as DOT, IATA, or IMDG). It must be shipped in suitable containers, impervious to leaks, with accompanying safety data sheets. Temperature control and restricted handling may be required depending on quantity and destination.
    Storage Store **4-(1-Hydroxy-2-(methylamino)ethyl)phenol** in a cool, dry, well-ventilated area away from sunlight, incompatible substances, and ignition sources. Keep container tightly closed and properly labeled. Use secondary containment to avoid spills. Avoid exposure to moisture. Store at room temperature, unless otherwise specified by the manufacturer. Ensure access to appropriate spill containment and personal protective equipment.
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    Certification & Compliance
    More Introduction

    4-(1-Hydroxy-2-(Methylamino)Ethyl)Phenol: Manufacturer Perspective

    Introduction and Origin of Production

    Working in our own chemical synthesis labs, we have spent many years refining the process for manufacturing 4-(1-Hydroxy-2-(methylamino)ethyl)phenol, sometimes better known in the industry by its common synonym. This compound belongs to the family of phenylethanolamines and serves a clear purpose across multiple verticals, from pharmaceuticals to fine chemistry research. Unlike materials that travel through layers of brokers, each batch of our product starts and finishes under direct, tight process control.

    Establishing a process for this molecule draws on decades of practical engineering. Starting from phenol derivatives, our team controls every detail—from catalyst selection to purification routes. Stabilizing the hydroxy and methylamino functionality poses unique process challenges, especially to avoid over-oxidation or unexpected side reactions. We have tailored instrumentation and real-time analysis tools so each output matches the demanding requirements for both lab development and registered production.

    Chemical Structure and Physical Profile

    Chemically, this molecule presents a benzene ring with a hydroxy group at the para position, and a 1-hydroxy-2-(methylamino)ethyl substituent at the para carbon. Customers often comment on the color and granularity; our standard product appears as a white to off-white crystalline powder with low moisture uptake and a stable melting profile, a result of refined crystallization methods. Each lot undergoes high-performance liquid chromatography (HPLC) and NMR verification, confirming both identity and purity. Through careful drying, we eliminate residual solvents and minimize bound water, an often-overlooked factor that can complicate downstream formulation.

    Our technical staff commits to full disclosure of the chemical's physical form and composition, letting researchers focus on innovation rather than troubleshooting raw material inconsistencies. For those working at bench or scale, reliable handling stems from predictable flow properties and docile storage needs: this material maintains stability when kept in sealed containers and away from strong oxidants. Over time, long-term storage testing has confirmed batch stability under a standard temperature range, free of measurable degradation-related byproducts.

    Utilization in Industry and Research

    In our view, no product exists outside its end-use context. 4-(1-Hydroxy-2-(methylamino)ethyl)phenol stands as a cornerstone intermediate in the synthesis of various small-molecule pharmaceuticals, particularly where specific chiral activity is required. Many of our long-term partners rely on this compound for building active pharmaceutical ingredients (APIs) targeting vasodilatory activity, cardiac modulation, or neural pathways. The key lies with the dual role of the hydroxy and methylamino groups; these enable chemical transformations difficult to achieve with simpler scaffolds.

    Academic centers turn to our material for method development, mechanistic studies, and custom analog synthesis projects. We have seen these researchers value not only purity but deep traceability back to raw materials, synthesis conditions, and impurity profiles. For pharmaceutical process teams, our in-house route avoids supply bottlenecks and irregularities that plague sourced products. Teams performing scale-up repeatedly emphasize the peace of mind from knowing the synthetic lineage and process history for each lot.

    Outside the pharmaceutical spectrum, the molecule’s phenolic group serves synthetic chemists pursuing functionalized polymers or testing oxidative coupling reactions. Protocols that require robust starting materials with predictable reactivity find value in our confirmed lot-to-lot consistency.

    Setting 4-(1-Hydroxy-2-(Methylamino)Ethyl)Phenol Apart from Other Compounds

    Through years of handling related chemical families, we have seen many buyers mistake analogues, believing minor variations make little difference. A close analysis shows that even a subtle shift—such as replacing the methylamino group with an ethylamino chain or switching the hydroxy group’s position—can cause substantial changes in pharmacological and chemical behavior.

    For example, alternative phenolic compounds may lack the same reactivity in electrophilic aromatic substitution or nucleophilic addition, leading to poor process outcomes or unexpected byproducts. Slight changes in chemical structure often result in unpredictable solubility or loss of selectivity in bioactive testing. Because we manufacture from raw materials up with full analytical backup, any difference in composition becomes clear at both the molecular and batch level.

    Several competitors have sourced products that, on casual inspection, appear similar but exhibit batch-to-batch drift or undetectable contaminants. Our approach draws on rigorous control, with the full run history shared with every customer needing detailed compliance records. Direct synthesis on site allows us to adapt process conditions in real time if a deviation occurs, drastically cutting down on client-side validation failures.

    We routinely benchmark our product against reference standards available globally, using mass spectrometry and advanced chromatographic comparison. Repeated testing consistently shows our outputs match or exceed purity targets set by major pharmacopoeias, and spectral overlays show no presence of common manufacturing byproducts sometimes seen in external or legacy supplies.

    Specifications Informed by Real Workflows

    Specifications for this product stem both from published literature and hundreds of practical application feedbacks from process chemists and end users. While we uphold a minimum purity greater than 99%, more important is the near absence of starting materials, residual catalysts, or secondary amines. Loss on drying, residual solvent limits, and single-point melting range all come from direct experience on production floors, not simply desk-based reviews.

    Importantly, our experience confirms that the order in which impurities appear during reactions with this compound matters for subsequent synthetic steps. We tune not only for gross assay percent but for absence of reactive byproducts that can poison enzymatic steps, interfere with downstream crystallizations, or show up on advanced trace monitoring. Over the years, we have reworked our filtration and isolation schemes to eliminate carried-over organic metals or non-aromatic tailings.

    Each packaging format—whether for kilogram or multi-tonne lots—emerges out of storage data and repeated user experience. Packages seal against atmospheric moisture and allow for easy sampling by end-user teams. Full COA and batch documentation accompany every lot, reflecting not just specification conformity but process transparency.

    Supporting Regulatory and Safety Confidence

    Because we manufacture within a fully documented plant, customers can always request full synthesis route details or residual impurity datasets for regulatory submissions. Our QA department maintains records for every campaign, providing auditors and compliance teams quick access to trace lineage. Material shipped under GDP-compliant processes passes regular inspection and aligns with both international and regional safety norms.

    Safety education forms a core part of our relationship with clients. Handling 4-(1-hydroxy-2-(methylamino)ethyl)phenol does not demand unusual precautions, but years of operations teach respect for both chemical potential and facility safety protocols. We reinforce PPE usage, ventilation, and equipment cleanliness whether for bench chemistry or full-scale reactivity testing. Up-to-date SDS and hazard analysis accompany all documentation, and our team remains accessible to support root-cause investigations or risk assessment queries. Through targeted training, customers bring more confidence to scale-up and pilot studies.

    Solutions to Common User Challenges

    Emerging developers and mature manufacturers each run into similar hurdles: inconsistent material properties, unreliable sourcing, and unpredictable byproduct spectra. In our daily experience, integrating vertical production control solves most of these.

    Many users approach us after facing variability in methylamino group content, leading to failed reactions or low-yield isolations. Our synthesis avoids nonselective alkylation and includes in-line IR monitoring that catches off-target side chains before final purification. Chemists working at analytical scale express frustration over trace metals or organic residues interfering with spectroscopy. We apply metal scavenger columns and repeated recrystallization, maintaining consistently low trace impurity profiles.

    Storage and logistics sometimes challenge customers who receive goods with too much surface moisture or partial oxidation. Our packaging relies on tested barrier laminates and controlled atmosphere fills. No product leaves our site without stability data supporting three to six months of bench storage at ambient temperature. Environmental monitoring allows our team to guarantee quality holds from shipment to warehouse transfer.

    Pilot plant episodes sometimes show kinetic variance because of small contaminant carryover. Listening to operators, we upgraded our distillation regimes to pull off low boilers and educate client QC staff on sample preparation. Open technical collaboration takes precedence over paperwork shuffling.

    Continuous Process Improvement Driven by User Feedback

    We view the manufacturing floor as a place of ongoing discovery. Many process modifications originate from end-users’ bench problems or industrial feedback. A run of recrystallization failures at one client led us to re-examine our crystal habit optimization and drying cycle length, improving downstream filtration efficiency for every subsequent batch. User reports of reaction “stall out” prompted us to adopt more granular monitoring of byproduct peaks and reduce permissible total aldehyde content in final product.

    Working with global partners across different regulatory regimes, we saw that shifts in local storage norms demanded changes to packaging and documentation—our documentation now ships in multiple languages with updated chemical inventory codes as needed. High-throughput pharmaceutical operations called for simplified barcoding and digital transfer of spectrum data. Rather than impose one-size solutions, we maintain a channel for direct technical escalation, bridging gaps before scale-up leads to wasted material or process delay.

    Many of our recent enhancements stem from customer audits and on-site troubleshooting, revealing details about batch stability, dusting on transfer, or analytical drift during long-term storage. By feeding operational learning directly back into the plant, we shrink process drift, shorten lead times, and improve first-pass yields both for ourselves and our clients.

    Commitment to Transparency and Traceability

    Users across sectors—from drug discovery to fine chemical engineering—look for more than a line on a datasheet. We learned early that repeat clients prioritize real traceability: detailed batch records, route-of-synthesis notes, and demonstrable absence of genotoxic impurities. Each lot receives a unique run identifier, reflecting everything from raw material origin to final crystallization date. Process documentation couples with chemical fingerprinting data, helping users face regulatory questions from auditors and quality assurance staff.

    As regulatory standards evolve, we invest in digitized plant systems for automatic lot tracking, linking every batch to raw materials through to shipping container. In practice, this means any query on history, impurity drift, or process step change is resolved within a working day, supporting auditors and users tasked with full lifecycle oversight. This approach reduces risks for teams running long-term syntheses and trials.

    Environmental Responsibility and Sustainable Practices

    Our approach recognizes that chemical production impacts the environment. Over the years, we made steady progress minimizing waste streams that carry over from both the phenol precursor and amination agents. Advanced solvent recovery, in-process water stripping, and catalytic minimization drive down both environmental and cost loads. In several recent campaigns, we pushed solvent recirculation rates up without impurity build-up, easing downstream disposal.

    All process development includes environmental impact analysis. Where possible, we substitute green chemistry options: lower-toxicity solvents, streamlined filtration regimes, and renewable energy inputs now play practical roles across production. New candidates for raw materials receive vetting both for performance and for reduced emissions footprint. Waste tracking and neutralization link to our main plant ERP, with clear forward paths for spent solvents and off-gas scrubbing.

    Collaborative Partnerships: From Purchase to Process Optimization

    Buying from the manufacturer means a direct line to the people who designed the process. Our technical support works alongside formulators and scale-up engineers long after the pallet has shipped. Years of troubleshooting conversations—either around impurity spikes on scale, changes in crystal form, or questions from analytic teams—shape both our product and how we interact with customers.

    Repeatedly, project managers ask for support untangling synthetic dead-ends or planning for modular scale-up. As a practice, we provide digested technical packages with NMR, HPLC, GC, and MS data at the outset, so in-house teams hit the ground running. Ongoing feedback—ranging from alternate process conditions to impurity anomaly detection—informs future rounds of plant upgrades.

    We value partnership rooted in transparency. Whether handling process implementation or needing rapid troubleshooting of an unexpected reactivity issue, our door remains open beyond the transaction. In an industry shaped by constant regulatory evolution and supply chain uncertainty, working directly with a hands-on manufacturer offers both practical agility and a legacy of process experience. By integrating insights from each region and application, we continue to adapt 4-(1-hydroxy-2-(methylamino)ethyl)phenol production for lasting reliability and clean, data-backed results.