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2-Hydroxy-4-Methylpyrimidine Hydrochloride

    • Product Name 2-Hydroxy-4-Methylpyrimidine Hydrochloride
    • Alias 2-Hydroxy-4-methylpyrimidine HCl
    • Einecs 624-702-5
    • 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

    792850

    Product Name 2-Hydroxy-4-Methylpyrimidine Hydrochloride
    Cas Number 74769-91-0
    Molecular Formula C5H7ClN2O
    Molecular Weight 146.57 g/mol
    Appearance White to off-white crystalline powder
    Melting Point 203-207°C
    Solubility Soluble in water
    Purity Typically ≥98%
    Storage Condition Store at 2-8°C, protected from light
    Synonyms 2-Hydroxy-4-methylpyrimidinium chloride
    Ph Of 1 Solution 3.0-5.0
    Chemical Class Pyrimidine derivative
    Stability Stable under recommended storage conditions

    As an accredited 2-Hydroxy-4-Methylpyrimidine Hydrochloride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White, opaque sealed bottle containing 25 grams of 2-Hydroxy-4-Methylpyrimidine Hydrochloride, labeled with product name, CAS number, and safety information.
    Shipping 2-Hydroxy-4-Methylpyrimidine Hydrochloride is shipped in tightly sealed containers, protected from moisture and light. It is handled as a non-hazardous solid under normal conditions, but should be transported according to standard chemical safety regulations. Ensure proper labeling and documentation for safe transport and storage.
    Storage 2-Hydroxy-4-Methylpyrimidine Hydrochloride should be stored in a tightly sealed container, protected from moisture and light. Keep it in a cool, dry, and well-ventilated area, ideally at room temperature (20–25°C). Avoid exposure to incompatible substances such as strong oxidizing agents. Ensure storage areas are clearly labeled and accessible only to trained personnel, following standard laboratory chemical safety protocols.
    Application of 2-Hydroxy-4-Methylpyrimidine Hydrochloride

    Applications of 2-Hydroxy-4-Methylpyrimidine Hydrochloride in Industrial Manufacturing

    Our production of 2-Hydroxy-4-Methylpyrimidine Hydrochloride supports specialized chemical synthesis across multiple advanced manufacturing sectors. As a direct manufacturer, we ensure tight process controls, accurate batch consistency, and full traceability to meet the needs of high-purity downstream applications.

    1. Pharmaceutical Intermediate for Antiviral Compound Synthesis

    This raw material functions as a key intermediate in the multistep synthesis of nucleoside analog active pharmaceutical ingredients, including several pyrimidine-based antivirals. Customers rely on its precise reactivity and stability during heterocyclic construction stages, where protection and deprotection sequences require minimal impurity profiles and consistent molar yields. Strict GMP protocols apply throughout handling, storage and transfer to final intermediate formation.

    Industry compliance standards

    • Good Manufacturing Practice (GMP ICH Q7)
    • European Pharmacopoeia (Ph. Eur.) purity and impurity limits on intermediates
    • USP 467 Residual Solvents Control (for APIs)
    • FDA DMF Registration (where required for regulated submissions)

    Typical usage ratio

    • 0.4 to 0.8 molar equivalents per API batch, adjusted based on desired nucleoside analogue yield and side-reaction suppression

    Downstream process integration

    • Input into stepwise heterocycle assembly after halogenation or protection
    • Deployed during pyrimidine ring formation, prior to sugar moiety coupling
    • Pre-purification required before final condensation reactions

    Final product types

    • Antiviral drug substance intermediates
    • Nucleoside-based investigational new drugs (INDs)
    • API master batches for compounding or direct formulation

    2. Agrochemical Intermediate for Pyrimidine Herbicide Manufacturing

    In the agrochemical sector, formulators use this material as a core building block for synthesizing selective pyrimidine-based herbicides. Its function relates to forming the base skeleton before further functionalization with urea or triazole derivatives. The purity impacts catalytic activity and ensures downstream selectivity during post-pyrimidine derivatization processes. Plant QC teams test each batch rigorously for trace precursors and unwanted halides.

    Industry compliance standards

    • ISO 9001-certified agrochemical manufacturing protocols
    • REACH registration (Annex VIII) for industrial chemical intermediates
    • ECHA pesticide approval requirements
    • FAO/WHO Minimum Purity Standards

    Typical usage ratio

    • 15%–22% by weight of total pyrimidine core in technical concentrate formulations, with adjustment based on targeted herbicide activity profile and process scale

    Downstream process integration

    • Batchwise addition following initial condensation step
    • Continues through cyclization and subsequent amination operations
    • Remains under inerted atmosphere to prevent side oxidation during handling

    Final product types

    • Pyrimidine herbicide technical concentrates
    • Emulsifiable herbicidal formulations
    • Pre-mix granules for broadleaf and grass weed control

    3. Fine Chemical Intermediate for Dye and Pigment Synthesis

    Dye and pigment manufacturers employ the compound for constructing high-value pyrimidine heterocycles. The hydroxyl group and methyl substitution enable targeted nucleophilic aromatic substitution, critical for designing bathochromic shifts and improved lightfastness in specialty pigments. Quality parameters include absorption maxima, minimal residual base, and strict particle control post-precipitation. The material’s high purity minimises off-color or shade drift in downstream pigment batches.

    Industry compliance standards

    • ISO 14001 Environmental Management (chemical dye plants)
    • RoHS and REACH SVHC screening for colorants
    • EN 71-3 Heavy Metal Restrictions (textile dyes and pigments)
    • OEKO-TEX Class I Composition Controls

    Typical usage ratio

    • 3–8% by total pigment mass, depending on chromophore depth and hue stability required

    Downstream process integration

    • Initial heterocycle coupling via nucleophilic aromatic substitution
    • Introduced prior to azo coupling or metal-complexation stages
    • Subjected to repeated recrystallization for optical purity

    Final product types

    • Specialty printing inks (pyrimidine class)
    • Textile and industrial coating pigments
    • High-performance color concentrates for plastics

    4. Material for Photographic Chemical Synthesis

    Photographic chemical manufacturers integrate the material into the synthesis of pyrimidine-derived sensitizing dyes. Consistency in chemical structure directly affects photoreactivity and grain boundary formation on silver halide substrates. Downstream partners demand narrow melting point distributions and low trace metal contents for use in high-resolution imaging and archival media.

    Industry compliance standards

    • ISO 18902 Imaging Materials – Storage and Handling of Processed Films
    • DIN 15555-2: Stability Tests for Photographic Chemicals
    • TSCA Inventory Disclosure for US import/export
    • Product-specific QC documentation (spectral purity, low water content)

    Typical usage ratio

    • 1.5–4% of total dye mass, adjustable for sensitizer activity and application format (film or paper)

    Downstream process integration

    • Solubilization and coupling during early dye precursor synthesis
    • High-vacuum drying to remove residual chlorides before silver salt integration
    • Final product ion exchange for imaging-grade purity

    Final product types

    • Photographic sensitizing dye concentrates
    • Archival and high-resolution photo layers
    • Imaging-grade emulsion additives
    Free Quote

    Competitive 2-Hydroxy-4-Methylpyrimidine Hydrochloride 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.

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    Certification & Compliance
    More Introduction

    2-Hydroxy-4-Methylpyrimidine Hydrochloride – Insights from the Manufacturing Floor

    Daily Work with 2-Hydroxy-4-Methylpyrimidine Hydrochloride

    Our team produces 2-Hydroxy-4-Methylpyrimidine Hydrochloride every day, and we understand intimately just how much this compound matters to those pushing the boundaries in pharmaceutical research, fine chemical development, and diversified synthesis. We do not approach this material from behind a desk, we make it, we test it, and we troubleshoot every batch ourselves. Each run brings fresh demands, but over years of hands-on experience, we have learned what works well, what risks crop up, and how to realize consistent quality. We have listened to chemists and formulation scientists, absorbed their frustrations with off-spec material, and have taken their requirements as our own benchmark.

    What Stands Out: The Heart of the Molecule

    This hydrochloride salt of 2-Hydroxy-4-Methylpyrimidine doesn’t act like more generic pyrimidines or their derivatives. It behaves with reliable solubility under reaction conditions favored by process chemists. The methyl substitution at the 4-position and the hydroxy group at the 2-position open unique pathways in heterocyclic synthesis, and we see many teams leveraging this for custom intermediate work, API development, and lead compound optimization.

    Bulk orders don’t really tell the whole story. Most of our partners care about assured batch-to-batch quality and patience in fulfilling custom requests: a slightly adjusted granularity, a narrow moisture range, or a precise titration result. Close control over crystal form, purity above 99%, and reproducible color and flow all meet tight downstream specs—details traders cannot promise. We build those results day-in, day-out behind the reaction vessel.

    How Our Process Shapes the Product

    Instead of buying intermediates and blending, we direct-synthesize from quality-controlled raw materials, checking every precursor before acceptance. Our reactors are equipped to manage the heat and acidity swings that can plague less careful manufacturers. Each filtration and drying step gets real oversight from trained eyes, not just a cycle on a machine.

    Customers trust that our 2-Hydroxy-4-Methylpyrimidine Hydrochloride arrives untainted by residual solvents or unexpected metals, because we have set up our own analytical lab right next to the production line. Every batch passes LC, NMR, Karl Fischer, and heavy-metals screens before it goes to packaging. Our chemists are not afraid to reject product that doesn’t meet our internal markers—lost revenue is cheaper than a failed customer synthesis down the line.

    Specifications Built from Feedback

    Over years, we’ve revised our specs in response to what users actually confront in their workflows, not just what reference books print. Most of our batches achieve minimum assay of 99.5% by HPLC, moisture below 0.5%, and low residual solvent content verified by gas chromatography. Crystal habit, flowability, and color are tracked against established baselines. Even seemingly “tidy” products can harbor micro-impurities. Our tight process yields a hydrochloride salt with minimal tautomeric ambiguity and consistently sharp melting points, because the feedback loop from R&D labs makes us aim higher than industry norms.

    Real-world complaints—batch discoloration, persistent odor, handling issues—show us where minor contaminants hide. We routinely scan for genotoxic byproducts and record their results, even when nobody requests it. This attention builds confidence for researchers pushing towards regulatory submission or early-phase clinical work, where every anomaly matters.

    Handling, Packaging, and Traceability

    We fill, seal, and label every container under low-humidity air to keep clumping and hydrolysis at bay. Barcoded traceability isn’t an afterthought, it’s our habit, giving each lot a full record from precursor in-take to final drum. Minor packaging “improvements” like thicker bags or tamper-evident closures came straight from conversations with our users, not consultant jargon. No third party breaks bulk or rebottles: quality is only as strong as the weakest hand on the supply chain.

    Usage Across Industries

    Nearly every kilo we ship heads toward a synthesis that matters. Medicinal chemists build this compound into candidate API structures, thanks to its well-understood reactivity and clean transformation under mild conditions. Many teams designing kinase inhibitors, nucleobase analogues, or specialty agrochemicals have told us our product helps them avoid difficult purification steps that plague generic versions. Its hydrochloride counterion brings not only solubility advantages but also shelf-stability—critical in plant environments prone to variable temperature and humidity.

    The feedback loop from our customers tells us what generic suppliers miss. Many knockoff versions contain more residual base or inconsistent crystallinity, creating foaming, caking, or unexpected reactivity in target processes. Regular users know to ask about these features. We often receive samples from outside suppliers with inconsistent powder color, erratic solubility, sharp acrid smells, or degraded purity after only a brief shelf period. These seemingly small differences can decide between a successful batch in drug discovery or a failed screen.

    Beyond the Basics: Real Manufacturing Challenges

    Some challenges come from the intrinsic chemistry. The pyrimidine ring can pick up colored byproducts under high heat or extended acid exposure, so we optimize reaction profiles and time at each stage. The hydrochloride group enables easy work-up but can also absorb water from ambient air, causing caking or reducing shelf-life if packed without care. Instead of shortcutting, we dry and fill each pack under monitored conditions, logging every deviation from expected metrics. Customers have asked why our material resists discoloration, why its powder stays free-flowing months after receipt—these answers come from our attention to each micro-step, a discipline lacking in many high-volume settings.

    We remember early years troubleshooting off-colored product and learning that a seemingly minor temperature fluctuation or raw material grade could wreak havoc downstream. Since then, raw material prequalification and supplier relationships became central to our approach. We audit upstream partners and refuse shortcuts, even under pressure from cost-sensitive customers or tight schedules.

    What Differentiates Us from Third-Party or Reseller Products

    Every week, we receive questions like, “Can you provide certifications?” or “Is this the exact product used by reference labs?” These are not empty queries. A trader or reseller, even with the best intentions, cannot speak to the reactor control, the metal content in process lines, or the pulse of the filtration process. They repeat phrases from datasheets, but they never see a reaction run. We provide paperwork because customers ask, but the real assurance stems from knowing that every step is under one roof.

    Third parties often lack visibility into their source’s manufacturing, so they can neither guarantee trace impurity profiles nor respond to detailed analytical queries. We often receive requests to replicate or improve upon samples that other suppliers failed to control. In most cases, their issues trace back to inconsistent manufacturing practice—a missed step, a switch in precursor lot, or an unmonitored filter aid. Our detailed logs, archived aliquots, and direct process control let us reproduce or improve every batch, answer custom queries, or troubleshoot obscure impurities.

    Working Closely with Customers’ Development Teams

    Many breakthroughs from our customers came after honest, detailed discussions about their specific challenges—a dissolved impurity blunting a screen, a material stability concern, or a need to scale up for pilot plant trials. Some teams need kilograms, others start with only milligrams. We have adjusted our production to handle both, because our understanding of the end-use lets us optimize for practical bottlenecks, not just catalog sales.

    Site visits, virtual technical walkthroughs, and precise reporting practices let us respond quickly. We design processes that match regulatory needs and inform necessary documentation, from batch traceability to impurity profiling. Our goal is confidence at every scale—from proof-of-concept synthesis to larger volume, and eventually, to cGMP-validated runs.

    Continuous Improvements: A Live Process, Not a Static Recipe

    Each campaign brings us new learning. We encounter downstream bottlenecks that labs may not foresee—unusual impurity carryover from new solvents, atypical particle size requests for spray-drying, or compounded moisture uptake during shipment to humid countries. Responding to these surprises helps us grow. We review post-shipment feedback, analyze returned product, and scrutinize every upset until root causes are found. Small changes—for example, updating filter aids, refining drying cycles, or retesting sealing liners—have tightened our controls and preempted recurring problems.

    This isn't theoretical improvement. We have invested in newer detection equipment, and we constantly review our standard operating procedures by running test batches with deliberate variation. Cross-functional teams from chemistry, engineering, and QA all sit at the discussion table. These disciplines enforce accountability, drive continuous improvement, and shake loose lessons that static, distributor-driven models never encounter.

    Looking Forward: Shaping the Next Generation of Compound Supply

    Researchers’ expectations keep moving forward—lower impurity levels, improved reproducibility, and speedier timelines. Our culture rewards direct engagement with technical users, not just procurement departments. We thrive best with partners who see us as an extension of their lab, not just a cost line item.

    Requests to tune solid-state properties, supply with alternate counterions, or hit new analytical thoroughfares all push us to improve. Only by maintaining our link between process, analysis, and real-world application do we continue to lead over impersonal bulk suppliers. Every technical advance that eases a customer’s path to market or research success is shared, not hoarded.

    Why In-House Manufacturing Remains Essential

    The controlled, transparent manufacturing environment we uphold cannot be replicated by branded repackagers or resellers. From ingredient purchasing, through to reaction, isolation, analysis, and shipment, each variable stays in knowledgeable hands. This chain of trust cannot be replaced by quality systems that only sample at the endpoints. Unbroken process control is the only way to promise the levels of reliability, documentation, and technical accountability that true innovators require.

    Our presence in the industry has been shaped more by listening than by lecturing. Feedback from working chemists, formulation researchers, and quality professionals sets the bar. Every insight they offer—every criticism, every leak in a drum, every tip-off about a problematic impurity—ends up reflected in a product that real experts prefer.

    Your Work, Our Drive

    If you are driving research, development, or production work that needs 2-Hydroxy-4-Methylpyrimidine Hydrochloride with rock-solid dependability, the differences become clear on your bench, not just our balance sheet. Our team stands behind every batch because we shape it, test it, and answer for it ourselves. This level of involvement only comes from those who are truly invested in your success, not in trading volume.

    We remain committed to learning from our customers’ experiences and building every batch as if it were our own. Anything less falls short of what you—and we—need to keep advancing chemical innovation. New problems will always surface. We stake our reputation on meeting them directly, with transparency, speed, and technical know-how born of real, hands-on experience.