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HS Code |
675733 |
| Cas Number | 126-98-7 |
| Molecular Formula | C4H5N |
| Molecular Weight | 67.09 g/mol |
| Synonyms | Methacrylonitrile; 2-Cyanopropene |
| Appearance | Colorless to light yellow liquid |
| Boiling Point | 96-98°C |
| Melting Point | -51°C |
| Density | 0.805 g/cm³ at 20°C |
| Flash Point | 10°C (closed cup) |
| Solubility | Slightly soluble in water; soluble in alcohol and ether |
| Odor | Acrid, unpleasant |
| Stabilizer | Contains an inhibitor such as hydroquinone or similar |
As an accredited 2-Methylacrylonitrile [Stabilized] factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 2-Methylacrylonitrile [Stabilized], 500 mL, is supplied in an amber glass bottle with a screw cap and safety labeling. |
| Shipping | **2-Methylacrylonitrile [Stabilized]** must be shipped as a hazardous material. It should be packed in airtight, chemical-resistant containers, properly labeled as toxic and flammable (UN No. 2539, Class 3/6.1). Transport requires compliance with international regulations (such as DOT, IMDG, IATA) to ensure safety and environmental protection. |
| Storage | 2-Methylacrylonitrile [Stabilized] should be stored in a cool, dry, well-ventilated area, away from heat, sparks, or open flame. Keep containers tightly closed and protected from direct sunlight. Store separately from oxidizers, acids, and bases. Use only with adequate ventilation and ensure proper labeling. Prevent accumulation of static charges and ground all equipment when transferring the chemical. |
Applications of 2-Methylacrylonitrile [Stabilized] in Industrial Manufacturing2-Methylacrylonitrile [Stabilized] serves as a key intermediate in multiple downstream chemical processes. Our manufacturing experience supports its use in technical polymers, pharmaceutical intermediates, specialty coatings, water treatment agents, and advanced electronic materials. Each sector integrates the material based on practical formulation demand, process safety, and final product specifications. 1. Technical Polymer Synthesis (Specialty Acrylonitrile-Based Polymers)Manufacturers of specialty copolymers utilize 2-methylacrylonitrile as a comonomer for advanced acrylonitrile-based resins. Its incorporation in polymerization reactors enables the production of materials with higher glass transition temperatures and enhanced chemical resistance, particularly for applications requiring dimensional stability under temperature fluctuations. The raw material enters emulsion or suspension polymerization processes using precise temperature and agitation control, contributing directly to the molecular architecture of specialty polymer chains. Industry compliance standards
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2. Pharmaceutical Intermediate ManufacturingPharmaceutical producers use 2-methylacrylonitrile as a crucial building block in synthesizing active pharmaceutical ingredients (APIs) and advanced intermediates. The nitrile group undergoes selective chemical transformations via catalytic hydrogenation, hydrolysis, or cyclization steps in accordance with validated protocols. Each batch requires strict process controls to prevent contamination and to meet trace organic residue specifications, dictated by the targeted API synthesis route and final regulatory filing. Industry compliance standards
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3. Specialty Functional CoatingsProducers of high-performance coatings add 2-methylacrylonitrile to resin formulations, introducing polar nitrile groups for enhanced substrate adhesion and improved weatherability. During resin synthesis, careful ratio control assures compatibility with cross-linkers and pigments. Coating engineers optimize monomer feed and cure conditions to tailor the coating’s flexibility and solvent resistance, matching the requirements of demanding industrial environments. Industry compliance standards
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4. Water Treatment Chemicals (Organic Flocculant Synthesis)Producers of organic flocculants integrate 2-methylacrylonitrile in tailored copolymerization processes, targeting improved performance in suspended solids removal. Its use in formulation enables the production of high-molecular-weight cationic or amphoteric polymers, which deliver efficient charge neutralization and bridging effects during water clarification. The incorporation timing, stabilizer content, and stepwise addition influence polymer chain distribution and final particle size, affecting flocculant dispersion and sedimentation properties in municipal or industrial wastewater applications. Industry compliance standards
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5. Advanced Electronics Material Manufacturing (Functional Monomers for Photoresists and Adhesives)Fabricators in the electronics sector use 2-methylacrylonitrile as a functional monomer in the synthesis of advanced materials required for photolithography and microelectronics assembly. The nitrile functionality provides enhanced dielectric properties and resistance to solvent etching. Process engineers tightly control monomer feed concentration and inhibitor content to prevent premature polymerization, ensuring consistent batch properties suitable for thin film formation and pattern fidelity on silicon wafers. Industry compliance standards
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Out on the plant floor, we work day in and day out with materials that demand not only technical skill but a clear grasp of why purity and stability matter beyond numbers on a certificate. Among these, 2-Methylacrylonitrile [Stabilized] plays an indispensable role for manufacturers focused on polymer synthesis, pharmaceuticals, and specialty chemicals. Having produced thousands of metric tons over the years, we see what happens when every detail—batch consistency, impurity control, stabilization technique—gets the attention it deserves.
We know that this compound’s double bond and nitrile group make it a workhorse in polymers and fine chemicals. What goes into every liter—a focus on minimizing oxygen exposure, a choice of specific inhibitors, and constant batch monitoring—shapes the reliability of the end product. Our stabilized grade draws on lean, oxygen-deficient process streams and employs inhibitors to prevent runaway polymerization before customers ever unseal a drum. The resulting material meets demanding requirements for color, odor, and reactivity, and its stabilization means it arrives with minimal degradation or self-polymerization—no unpleasant surprises, less downtime, and a predictable start to every synthesis.
You won’t hear about subtle shifts in formulation from a catalog. In actual production, 2-Methylacrylonitrile runs up against real challenges: tank heat build-up, seasonal humidity spikes, and the pressures a catalyst system encounters during polymerization. Customers working in copolymer and terpolymer manufacturing quickly notice if a single drum behaves differently from the rest; minor instability shows up as off-gassing, color change, or a sluggish reaction profile.
With decades on the line, we’ve tailored control protocols that track trace metals, peroxides, and chromophores right up until packaging. Our on-site analytical labs catch shifts in purity before they become headaches in the process vessel. What seems like a simple clear liquid can run afoul of downstream blending and extrusion if not kept within narrow margins for acidity, water content, and stabilizer concentration.
The difference in performance between stabilized and unstabilized forms rarely shows itself until a chiller malfunctions, a valve sticks, or a drum goes unused longer than planned. In the field, it’s not the big disasters that lose the most money; it’s the gradual buildup of gels or side reactions that force cleanout and scrap. Our experience led us to screen stabilizers that don’t interfere with radical initiators or catalyst systems, so customers won’t fight induction period delays or inhibition during polymerization. Every stabilization system presents its own quirks, and we select ours for a balance between shelf life and reactivity, knowing the downstream impact.
We supply the stabilized form because years of customer feedback show it stores with far more reliability—no resin rings under drum lids, no thickening after months at ambient temperature, and no sudden falls in assay when stored in bulk. This contrasts clearly with unstabilized variants, which need near-impossible handling vigilance and still present elevated risk during shipping, especially across climates.
We’ve seen process engineers tinker with batch size and agitation only to struggle with runaway reactions when working with less-stabilized 2-Methylacrylonitrile. Excess exotherm or high free-radical activity, even at moderate ambient temperatures, makes unstabilized forms unviable except at the largest, most closely monitored sites. With our stabilized material, users scale up with less risk—plant managers spend less on emergency cooling, QA staff spend less time troubleshooting off-spec batches, and operators face fewer acrid odors from spontaneous partial polymerization.
Some customers ask about alternatives such as 2-Ethylacrylonitrile or standard acrylonitrile. These compounds reflect different balances in volatility, toxicity, and double-bond reactivity. 2-Methylacrylonitrile, due to its branched side chain, offers unique copolymer properties—greater resistance to ultraviolet degradation, a difference in glass transition temperature, and altered mechanical robustness in end-use plastics. In our production lines, careful internal research shows how minor changes in side chain structure shift reactivity and compatibility with functional comonomers.
Trying to substitute base acrylonitrile for the methylated variant almost always leads to trade-offs in product flexibility and weathering. The presence of the methyl group not only introduces steric effects but also changes reactivity ratios, affecting the statistical incorporation into growing polymer chains. For pharmaceutical applications, our in-house team keeps close tabs on critical impurity profiles: methylated variants demand controlled handling to maintain appropriate limits on aldehydic byproducts and volatile organic traces. In practice, the extra stabilization step differentiates our product from others in the market, ensuring a level of predictability not found with more reactive, easily polymerized materials.
From tank truck unloading to the final ribbon mixer, every operator up and down our line tracks each batch through digital and manual logs. Long experience shows us that lot-to-lot consistency matters as much as what’s in the spec sheet. Polymers built on 2-Methylacrylonitrile reveal small differences in molecular weight or branching ratios, and that comes back to purity and inhibitor management during manufacture. We maintain detailed internal data on reactor pressure, batch residence time, and physical handling to trace every shipment. Outliers surface quickly in final product testing, and we take them seriously.
Polymer scientists increasingly look for materials that offer improved longevity and resistance to heat or light. Our 2-Methylacrylonitrile supports the creation of specialty copolymers, where manufacturers pursue new balances of toughness, transparency, and chemical resistance. In our direct experience, brands searching for weatherable plastics or elastomers have flagged inconsistent starting materials as a chief source of end-product failure. Consistent bulk purity and low moisture help preserve mechanical properties after molding or extrusion.
Research labs have sent us data showing significant reductions in gel formation and haze when using stabilized material compared to unstabilized sources. End-users highlight how stabilized material reduces downtime and cleaning, especially during multi-shift runs where maintaining flow and product appearance are critical.
Analytical chemists within our team bring practical knowledge about what users actually measure, whether it’s by gas chromatography, titration, or spectrometry. Every shipment passes through on-site GC-MS and Karl Fischer titration, but we don’t stop at numbers. We watch for color trends, organoleptic differences, and stability changes between tank bottom and top, particularly after longer holding times in bulk tanks. Problems caught before packaging seldom reach customers; problems not caught at all reflect poorly for months as off-standard product reaches the marketplace.
Knowing how to stabilize 2-Methylacrylonitrile requires more than dropping in a standard stabilizer dose. We monitor temperature profiles, container compatibility, and storage duration, changing inhibitor concentrations if a batch is destined for hot climates or extended warehousing. This hands-on approach reflects daily realities, not lab-only procedures. Above all, field experience shapes not only the minimum spec but an understanding of outlier events that erode product trust quickly.
Shipping 2-Methylacrylonitrile across multiple regions brings practical limits on how long the material survives without unwanted changes. Stabilized product tolerates long hauls better—no polymer crust at the container walls on arrival, less acid formation, and fewer complaints about seal corrosion or gummed transfer lines. Working on hundreds of shipments a year, our team coordinates with hauliers and storage partners who truly appreciate consistency in packaging and container design. The stabilized version lets us offer longer guaranteed shelf life and safer inventory turns for downstream producers.
Spills and accidental polymerization are costly, not only in lost material, but environmental fines, production loss, and plant shutdowns. We’ve seen incidents where unstabilized product took down entire reactor blocks, forcing days of labor-intensive cleaning and air monitoring. Stabilization doesn’t resolve every risk, but it drastically reduces the number of incident reports and emergency maintenance we hear from users. Because stabilized 2-Methylacrylonitrile generates less hazardous waste from spills or equipment fouling, it gives both safety managers and environmental officers breathing room for compliance. The regulatory benefit is clear, but worker safety and process confidence ultimately matter most in real manufacturing environments.
Over the years, lab managers, shift supervisors, and even transportation partners have handed us valuable feedback—anything from residue at the valve to pressure build-up inside drums. This feedback loop fuels process changes on our end. If a plant finds haze in their polymers or notes changes in kettle pressure during startup, we investigate both the inbound material and our handling practices, aiming to fix the source. Years of iterative small adjustments—tweaking inhibitor chemistry, adjusting sequence in the packout—demonstrate how hands-on manufacturing experience translates to a more reliable product for everyone in the chain.
We collaborate directly with industrial chemists in the field, supporting custom application development and troubleshooting. When customers seek to develop unique copolymer blends, we supply samples batch-matched to intended production so they don’t waste scale-up time adapting to small purity shifts. Our technical team has walked plant floors alongside customer staff, viewing their mixing, metering, and storage setups to recommend practical adjustments—whether it’s better drum stirring or pre-conditioning for very cold or hot storage.
Supporting R&D is more than shipping pure chemical. It’s about sharing test experience, discussing inhibitor performance, and looking at trends in regulatory requirements, particularly for users targeting biomed or electronics fields, where impurity or reactivity bottlenecks kill early commercialization efforts. By keeping open channels with users, as well as monitoring our own plant trial outcomes, we can anticipate changing requirements before they officially surface in standards or contracts.
Manufacturing is built around risk mitigation, batch after batch. That means dependable raw materials above all else. Our experience manufacturing 2-Methylacrylonitrile [Stabilized] brings enduring lessons: subtle changes—from trace water content to inhibitor choice to drum linings—show up months after shipping, in places as different as plastic membranes or pharmaceutical intermediates. Each drum reflects not only chemical analysis but a living set of practices, corrections, and hands-on experience.
Many suppliers highlight purity without answering long-term storage or process stability concerns. From our vantage point, producing stabilized material isn’t only about technical achievement in a reactor; it’s about delivering a positive daily outcome to companies counting on raw materials behaving the same today as they did last season. For producers needing reliability—whether in large-volume polymerization or high-value specialty chemical synthesis—stabilized 2-Methylacrylonitrile stands as the trusted choice because each metric ton ships with the assurance built on real production experience and genuine day-to-day contact with every stage of the supply chain.
