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5-Methylpyrimidine

    • Product Name 5-Methylpyrimidine
    • Alias 5-Methyl-1,3-diazine
    • Einecs 209-791-0
    • 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

    840179

    Cas Number 1461-77-2
    Molecular Formula C5H6N2
    Molecular Weight 94.12 g/mol
    Iupac Name 5-Methylpyrimidine
    Appearance Colorless to pale yellow liquid or solid
    Boiling Point 166-168 °C
    Melting Point 8-10 °C
    Density 1.062 g/cm³ (at 25°C)
    Solubility In Water Moderately soluble
    Smiles CC1=CN=CN=C1
    Synonyms 5-Methyl-1,3-diazine
    Pubchem Cid 135444
    Flash Point 49 °C

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

    Packing & Storage
    Packing A 100g amber glass bottle with a white screw cap, labeled "5-Methylpyrimidine," includes hazard warnings and batch information.
    Shipping 5-Methylpyrimidine is shipped in tightly sealed containers suitable for chemicals, protected from heat, moisture, and incompatible substances. It must comply with local, national, and international transport regulations, typically shipped as a non-hazardous material. Appropriate labeling and documentation are required to ensure safe handling and delivery during transit.
    Storage 5-Methylpyrimidine should be stored in a cool, dry, and well-ventilated place, away from sources of ignition and incompatible materials such as strong oxidizers. Keep the container tightly closed when not in use. Store it in a chemical storage cabinet, protected from light and moisture, and follow all relevant safety and regulatory guidelines for handling hazardous chemicals.
    Application of 5-Methylpyrimidine

    Applications of 5-Methylpyrimidine in Industrial Manufacturing

    As a core manufacturer of 5-Methylpyrimidine, we supply this building block for diverse chemical sectors. The following sections detail key industrial pathways, specific integration points, compliance standards, and primary manufacturing outcomes from our direct customers.

    1. Pharmaceutical Intermediate Synthesis

    Major pharmaceutical companies utilize 5-Methylpyrimidine during development of selective antiviral, anticancer, and CNS-active agents. The compound acts as a precursor for API scaffolds where methyl substitution enables targeted functionalization steps. Manufacturing runs follow documented routes for substituted pyrimidines, integrating stringent process control and traceability under regulated environments to ensure compliance for human therapeutic use. Material lot tracking, impurity profiling, and validation coincide with international pharmacopoeial expectations, supporting further elaboration toward finished dosage forms.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • EU GMP Annex 1 (EMA guidelines)
    • United States Pharmacopeia (USP) for relevant starting materials
    • European Pharmacopoeia (Ph. Eur.) Section 2.2.13 Purity assessment

    Typical usage ratio

    • 5–15% molar equivalent per synthetic batch, calculated according to the target API's backbone and pathway; final levels may adjust to route optimization findings and impurity limit requirements.

    Downstream process integration

    • Introduced during the heterocycle formation step, commonly amidine condensation, or further methylated to create precise analogs in the core skeletal structure.
    • Process development teams add after solvent charge and before critical heating or catalytic insertion stages.

    Final product types

    • Antiviral pharmaceuticals, e.g., nucleoside analogs
    • Anticancer drug substances
    • Central nervous system therapeutics with pyrimidine cores
    • Generic and patented API intermediates

    2. Agrochemical Building Block

    Producers in the agrochemical sector use 5-Methylpyrimidine as a precursor for constructing pyrimidine ring systems, which form the basis for select herbicide and fungicide active ingredients. The raw material enters synthesis workflows for compounds requiring nitrogen heterocycles with methyl electron-donating effects, which enhance selective bioactivity and environmental stability. This integration supports production scale-up under sector-specific protocols, with audit trails and controlled use declarations as per crop protection regulation. Batch adjustments occur to harmonize residue levels, product purity, and seasonal demand planning.

    Industry compliance standards

    • EPA 40 CFR Part 158 (U.S. pesticide registration)
    • OECD Principles of Good Laboratory Practice (GLP)
    • ISO 9001:2015 for agrochemical production
    • China GB 2763-2021 Maximum Residue Limits

    Typical usage ratio

    • 10–20% of the core active material on a molar basis, selectable to match end herbicide or fungicide formulation scaling and designed structure–activity relationships; changes reflect compound bioefficacy and regulatory threshold studies.

    Downstream process integration

    • Supplied during the ring assembly or side-chain alkylation stage of active ingredient synthesis, often under inert gas or controlled temperature depending on reactivity and selectivity goals.
    • QC teams sample at critical intermediates to map conversion and check impurity cutoffs in real time.

    Final product types

    • Systemic herbicides based on substituted pyrimidines
    • Broad-spectrum fungicides for cereals and vegetables
    • Agrochemical intermediates for crop protection synthesis
    • Ready-to-use field formulations post-downstream mixing

    3. Dye and Pigment Intermediate Production

    Specialty dye manufacturers incorporate 5-Methylpyrimidine for azo and anthraquinone dye intermediate synthesis, yielding chromophores with enhanced vibrancy and application durability. The methyl-substituted pyrimidine core introduces desired electron-rich character, tuning color-fastness and solubility profiles necessary for textile, ink, and automotive finishes. Production follows specialty batch analytics, source authentication, and compliance to avoid prohibited aromatic amines. Careful material balancing limits precursor carry-over, controlling shade and contamination during mass tonnage runs.

    Industry compliance standards

    • OEKO-TEX Standard 100 annex for hazardous substance limits
    • REACH (EC 1907/2006) Environmental Safety rules
    • ZDHC MRSL Level 3 for textile dye input controls
    • ISO 14001:2015 for chemical pigment processing

    Typical usage ratio

    • Depending on chromophore construct, 8–25% by mass as a ring system or coupler input; refined based on target hue intensity and downstream conversion rates.

    Downstream process integration

    • Added during diazotization or coupling stage for azo dye intermediates.
    • Discharged into reaction vessels for controlled temperature condensation during pigment manufacture.
    • Monitored for purity, unreacted starting material, and color consistency at pre-dispersion QC.

    Final product types

    • Reactive dyes for cotton, wool, and nylon textiles
    • Industrial pigment dispersions for printing inks
    • Automotive coating colorants
    • Plastics masterbatches with pyrimidine-derived tones

    4. Fine Chemical Synthesis – Heterocyclic Compound Manufacture

    Advanced fine chemical producers rely on 5-Methylpyrimidine for synthesizing specialized heterocyclic intermediates utilized in flavors, fragrances, and performance materials. The compound supplies a modifiable pyrimidine nucleus suitable for tailored substitution, enabling entrance into pathways for aroma molecules, electronic materials, and specialty biocides. Documented batch history supports traceability, while downstream operations use customized process geometry to capture high-purity fractions, limiting secondary byproducts and ensuring reproducibility over large and multi-step campaigns.

    Industry compliance standards

    • ISO 9001:2015 for quality management in fine chemicals
    • REACH (EC No 1272/2008) registration for intermediate use
    • IFRA Standards for fragrance inputs assessment
    • Food Chemicals Codex (FCC) for GRAS-labeled aroma chemicals, where applicable

    Typical usage ratio

    • 5–18% depending on the synthetic route; exact input tailored to downstream multi-functional group incorporation and stepwise mass balance strategies.

    Downstream process integration

    • Charged into multi-phase reactors at early cyclization or amidation stages.
    • May follow direct alkylation or halogenation for conversion to functionalized heterocycles.
    • Split feeding or portionwise addition often used to regulate exothermic reactions and maximize selectivity.

    Final product types

    • Aroma precursors for flavor and fragrance blends
    • Electrical material intermediates for specialty polymers
    • Biocidal agents with heterocyclic scaffolds
    • Photoinitiators and UV-absorber additives
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    Certification & Compliance
    More Introduction

    5-Methylpyrimidine: Experience from the Source

    Understanding 5-Methylpyrimidine from a Manufacturer’s Perspective

    In the world of heterocyclic chemistry, 5-Methylpyrimidine stands apart for its practicality and value across research and industry. Here in our plant, folks work directly with this compound on the line, in analytical labs, and hand-in-hand with process engineers. That perspective has shaped the way we approach each batch, focused on more than just yield. 5-Methylpyrimidine is not a commodity to us. It’s a tool, and its reliability matters to every partner downstream.

    The simple chemistry of 5-Methylpyrimidine—built around a six-membered aromatic ring with nitrogens at 1 and 3, and a methyl at the 5-position—gives it power as a foundational building block in pharmaceutical and agrochemical development. That methyl group is the real differentiator. With it, this pyrimidine derivative offers unique electronic properties, higher reactivity in certain synthesis routes, and possibilities for selective functionalization lacking in the plain parent structure.

    Why We Make 5-Methylpyrimidine—and What Quality Means on Our Line

    Producing 5-Methylpyrimidine demands attention at every stage. From sourcing of raw reagents to control of temperature and moisture in cyclization steps, we’ve learned over time that shortcuts sabotage both output and reputation. Crystal purity, trace byproducts, and consistency in each lot matter much more to a chemist facing tight regulatory thresholds than to an equipment operator eager to hit the end-of-shift target. Our people know this: a batch gone off-spec means piles of paperwork, reruns, and frustrated customers. So we focus on real-world quality: GC and NMR checks, moisture analysis, and careful in-process controls.

    Often, partners ask us what makes our 5-Methylpyrimidine different from others in the market. From direct experience, it comes down to more than just a purity number. For many pharmaceutical research labs, trace aldehydes, halides, or excess methylated fragments can ruin a synthesis or force expensive downstream purification. By chasing tighter control of side-product formation, and tuning the process to avoid tars and sticky residues, we make sure those trace levels fall below detection or viable impact. A high-purity 5-Methylpyrimidine (typically above 99%) lets researchers focus on product design, not cleanup. Reliability means fewer headaches all around.

    Applications That Drive Demand—And Where Problems Usually Arise

    From our years shipping this product globally, a few uses show up again and again. 5-Methylpyrimidine isn’t just a lab curiosity; it’s a genuine workhorse for synthesizing more complex molecules. Hit any list of pharmaceutical APIs involving pyrimidines, and the 5-methyl variety appears in routes to antiviral, antifungal, and anticancer agents. It finds its place in pesticides, herbicides, and dye intermediates too. Its modest size and single methyl offer synthetic flexibility for forming new C–C, C–N, or C–O bonds.

    Working with large-scale clients, we’ve learned which pain points crop up most often. Moisture sensitivity can become a nightmare in humid regions or with bulk handling—hence the need for tight packaging, robust drying steps, and clear expiry controls. Another difference from more common pyrimidine bases: the methyl group can increase volatility and lower melting points, which forces process upgrades for safe storage and handling. In some cases, labs still struggling with open-topped glassware or hand transfers see greater losses or contamination. Those seeking to scale often ask for premeasured capsules, improved drum designs, or precise lot tracking. Our ongoing investments target these needs specifically, because unlike traders or stockists, we hear about every hiccup first-hand, and we know that customers don’t want fancy marketing—they want less downtime.

    The Science Behind the Synthesis—And Why Process Choice Matters

    Multiple routes can lead to 5-Methylpyrimidine, but not all are created equal when you care about environmental controls, scalability, and off-target residue. Early in our journey, single-batch syntheses provided learning moments: small errors in reagent ratios led to sticky messes, odd colors, or batch failures. Over time, optimization kicked in. We now rely on a carefully controlled condensation process using methylated nitriles and amidines, with continuous feedback on reaction progress. Reflux cycles, pH balancing, solvent removal, and residue purification all get close handling.

    Where some manufacturers rush, we emphasize gradual ramp-up, monitoring each fraction, and using scrubbers to capture stray fumes. The analytical lab checks for halide content, heavy metals, and specific contaminants unique to this synthesis route. Unlike alternatives that leave detectable solvent residues, our process finishes with multi-stage drying under vacuum and inert gas purge. Peers in the market may advertise purity, but real-world impact often comes down to the “invisible” differences: ease of dissolution, reduced polish time, storage stability, and the absence of “chemical ghosts” that spoil sensitive downstream reactions.

    Packaging, Storage, and Transport: Real-World Choices

    Once manufactured and tested, keeping 5-Methylpyrimidine safe and stable through global distribution poses its own set of challenges. The compound enjoys relative stability under dry conditions, but humidity or rough handling can degrade its quality. From experience, plain steel drums or single-seal plastic rarely suffice. We stick to double-lined, nitrogen-flushed vessels with tamper-evident seals, and we discourage any transfer outside clean rooms. Over the years, changes in regulations forced upgrades in container selection—translucent bottles and polypropylene drums now stand as our standard, ensuring light and air exposure stay minimal.

    It’s not uncommon to see competitors shipping powders that cake, darken, or clump from insufficient moisture protection. Users then spend hours or days trying to dry, sieve, and re-test, which costs more than premium packaging ever would. Our returns and complaints dropped drastically after we improved packaging and lot tracking. Working with freight partners who understand chemical sensitivities—avoiding direct sunlight, extreme cold, or long customs holds—makes a world of difference for the end customer. Having our people track every shipment, not just ticking off a dispatch list, closes the loop between production and use.

    5-Methylpyrimidine Versus Other Pyrimidines

    Much of the nuance in value for 5-Methylpyrimidine comes from real distinctions with its cousins. Standard pyrimidine shares the same skeleton but lacks the organic “hook” brought by the methyl group. That difference—minor on paper—translates to shifts in electron distribution, more predictable substitution chemistry, and higher lipophilicity in drug design. Labs looking to build complex heterocycles find the 5-methyl version less prone to random side reactions, cleaner separation in chromatography, and (in many documented cases) higher yield routes.

    Our laboratory comparisons of 5-Methylpyrimidine with 2-methyl or 4-methyl analogs also highlight big distinctions. The methyl at position 5 changes both physical properties and reactivity—melting point, solubility in organic solvents, and ease of further functionalization with common reagents (like halogenators or metal catalysts). In pilot plant trials over the years, we found that switching from basic pyrimidine to the 5-methyl product almost always reduced the amount of purification effort after core synthesis steps in many patent-protected active compounds. For customers, that impacts both cost and timelines.

    Working Safely with 5-Methylpyrimidine—From Manufacturer to End User

    Anyone with time in a chemical plant knows safety never fades into the background. Direct handling of 5-Methylpyrimidine reminds you of its solvent-like nature—pungent, volatile, and swift to move through cracks if not properly enclosed. Over the years, the team’s adjustments in ventilation, personal protective equipment, and air quality monitoring have cut down on exposure incidents. For those using it in research or scaling later, the same lesson applies: Always work in well-ventilated spaces, avoid open-top transfers, and use non-reactive gloves. We handle potential spills as major events, not afterthoughts, knowing respiratory irritation or chemical burns result from lax standards.

    One often-overlooked point for end users is the hazard of mixing residual product with oxidizers or acids. After one early incident in an R&D wing, we revised how we communicate safe disposal practices, adding more granularity and site-specific instructions. Customers working at the bench say the real trust comes from a partner who phones back about an issue, not just quoting a safety data sheet.

    Regulatory, Environmental, and Market Trends

    The world of fine chemicals faces new scrutiny every year. Many end-users rely on us to stay ahead of regional regulations and documentation demands. For 5-Methylpyrimidine, purity requirements trace back to national pharmacopeias, pesticide active ingredient certifications, and major international standards. That’s why our QC staff spend as much time reading regulatory updates as running HPLC samples.

    New market entrants from budget producers often cut corners—skipping high-standard analytics, reusing solvent batches, or stretching expiry dates. Customers concerned about regulatory inspections find that these shortcuts come back to bite later, through failed certifications or unexpected side products. We refuse to blend off-grade material or reuse aging stock just to save cash. Partners who’ve seen failed audit cycles appreciate the difference our track record brings, especially when every document and batch sample remain available for years after delivery.

    Customers also ask about the environmental side. Our long experience with local and international environmental standards leads to investment in closed-loop solvent recycling, scrubber systems, and careful tracking of waste. These updates make day-to-day work smoother, cut costs for compliance, and support sustainable business. Whether it’s regulatory inspections or shifting customer preferences, we see transparency and proof of practice as insurance, not just box-ticking. Firms building new pharmaceutical lines or seeking partners for green chemistry pilots tell us our operational transparency and willingness to share process improvements distinguish us.

    From Lab Scale to Industrial Production: Lessons Learned

    Scaling up 5-Methylpyrimidine production marked one of the most challenging but rewarding chapters in our plant’s history. At the bench, reactions behave well—yield consistent, color pure, and side products low. Scale introduces new variables, from batch mixing efficiency to heat transfer in larger vessels. We’ve solved these headaches through hands-on experience—installing variable agitators, double-jacketed reactors, and real-time temperature control. Downstream, filtration upgrades and automated bagging made operations smoother.

    Real-world feedback loops drive much of our improvement. Chemists moved from troubleshooting endless crystallizations to sending fewer samples, after on-site tweaks to solvent ratios and cooling rates. Customers upscaling their own syntheses with our product report fewer batch failures or reprocessing needs. Investing in operator training, not just automation, ensures everyone understands the practical quirks of 5-Methylpyrimidine and how slight deviations in process impact downstream chemistry. The payoff shows up in fewer complaints, steadier schedules, and supply contracts renewed year after year.

    How Direct Manufacturer Relationships Matter

    Unlike traders or stockists, direct manufacturers hold deeper responsibility when it comes to product quality, responsiveness, and continuous improvement. Each client comes with unique technical challenges and real deadlines—no two production runs use our 5-Methylpyrimidine quite the same way. Some pursue gram-scale screening runs, others demand tons for launch lines. Being close to the production source means the answers to technical queries come from people making the compound daily, not call center scripts.

    We’ve seen cases where emergency orders arrived in the middle of local holidays; where pilot plant hiccups meant rapid troubleshooting of application questions; where changes in international shipping rules forced last-minute packaging updates to meet a region’s strict import requirements. The people handling these requests are the same people watching the reactors tick down to completion, the same hands labeling and sealing each finished drum. That direct line brings satisfaction to both sides—customers know us by name, and our team takes pride in seeing a compound built from scratch go on to power world-class research and production.

    Looking Ahead: Future Directions for 5-Methylpyrimidine

    Demand for 5-Methylpyrimidine has trended upward over recent years, fueled by deeper pharmaceutical pipelines and expansion in crop protection agents. Advances in green chemistry point toward milder, lower-waste syntheses—goals we share, as energy and waste costs shape life on the plant floor. Staff in our labs collaborate with academic and industrial partners to test new routes, aiming for lower temperature, less solvent-intensive processes. Pilot trials aim to shorten run times while maintaining the same tough purity expectations. Each improvement directly strengthens downstream reliability for our customers.

    Collaborative research sometimes points toward functionalized analogs, building upon the reliable base we’ve refined over years. We track these developments not just as observers, but as solution partners, working with process developers, academic groups, and end-use innovators. The next generation of 5-Methylpyrimidine derivatives may tackle tougher targets in disease and material science, opening new markets for advanced heterocyclic chemistry. Our ongoing investment in R&D, process safety, and greener pathways shows our commitment to both productivity and responsibility.

    Conclusion: A Manufacturer’s Commitment

    Building 5-Methylpyrimidine from the ground up means taking responsibility for each step in its journey—from raw reactant to packaged product ready for labs and factories worldwide. Decades of experience have strengthened our focus on practical, real-world quality, direct communication with end users, and adaptability in the face of changing technical and regulatory landscapes. We believe technical excellence shows itself not in buzzwords, but in purity lots that pass without extra fuss, packaging that holds up under stress, technical answers that help solve problems, and a focus on further improvement—year in and year out. From synthesis bench to global shipment, our view remains the same: producing 5-Methylpyrimidine isn’t just business; it’s a craft built on earned trust and continuous effort.