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Methyl undecanoate first caught the attention of organic chemists searching for versatile fatty acid derivatives. Chemists began isolating fatty acid esters in the early twentieth century, curious about how slight chemical tweaks changed their properties. Methyl undecanoate didn’t just show up as a lab curiosity; it formed part of a growing toolkit for industries experimenting with new lubricants, plasticizers, and flavors. The surge of biochemistry in the 1970s gave this methyl ester another boost, as researchers found it occurring naturally in trace amounts within some plant oils and animal fats. It took years of chemical engineering and feedback from practical applications before methyl undecanoate standards became reliable benchmarks for quality control and research development. Over decades, the compound’s role shifted from curiosity to dependable reference, a journey shaped by technological improvements, practical needs, and the steady rise of environmentally conscious synthesis methods.
Most people outside the chemical field won’t recognize methyl undecanoate on a product label. Inside research labs and specialty manufacturing, though, it has become a backbone compound for calibration, quality checks, and raw material sourcing. Its structure—an 11-carbon fatty acid chain capped with a methyl ester group—offers a balance between volatility for gas chromatography and enough stability for long-term storage. I’ve seen this standard play a role in everything from food flavor analysis to surfactant development, which speaks to its adaptability. It bridges the gap between nature-derived molecules and synthetic targets, offering consistency in an industry that can’t always rely on wild-harvested sources.
At room temperature, methyl undecanoate looks like a colorless to pale yellow liquid. Its faint, sometimes sweet odor hints at its underlying presence in some natural scents and flavors. With a molecular weight just over 200 grams per mole, and a boiling point that crosses 250°C, the molecule offers a midway point between shorter esters (which evaporate too quickly for some techniques) and longer ones (which go waxy and stubbornly resist analysis). This compound dissolves easily in organic solvents, but not in water, reflecting the underlying hydrophobic fatty chain. Its flash point and viscosity give manufacturers workable handling parameters, so they can store and use it with little fuss. From my own time calibrating gas chromatographs, the predictable retention time of methyl undecanoate simplifies complex sample identification, making it a staple for analysts who need reliability batch after batch.
Scientists and regulatory officers ask for detailed technical specifications when buying standards. In the labs I’ve worked with, the purity of methyl undecanoate is usually above 98%, verified by chromatography and mass spectrometry. Labeling on bottles warns about the need for chemical safety, listing storage requirements—usually a cool, dry place away from direct sunlight—and includes hazard statements for safe handling. Each batch of a certified reference material comes with documentation that matters in audits and quality assurance. It’s not unusual to see certificates outlining trace impurities, precise molecular data, and the analytical methods used for validation. Researchers and process chemists rely on this transparency to match laboratory readings with industry protocols. A reputable supplier will never skimp on this paperwork.
Most commercial methyl undecanoate comes from the reaction between undecanoic acid and methanol, catalyzed by strong acids like sulfuric acid. This method—called Fischer esterification—drives the reaction toward the ester end product by removing water as it’s formed. In more recent years, a shift toward greener synthesis has nudged some facilities to try enzyme-catalyzed processes, using lipases under milder conditions. This alternative reduces the need for harsh chemicals and lowers the energy footprint. From my perspective, improving the sustainability of esterification isn’t just about public relations; it affects cost, worker safety, and the attractiveness of this standard for food and fragrance uses. Chemical companies look for ways to scale these greener technologies without sacrificing consistency, knowing that regulations and customer preferences both trend toward cleaner production.
Methyl undecanoate holds up well under a host of chemical manipulations, which helps explain its appeal as a research chemical. You can reduce its ester group to form undecanol, hydrolyze it back to the parent acid, or transform the fatty acid chain through oxidation or halogenation. Researchers often use methyl undecanoate as a base for preparing longer-chain surfactants, or as a building block for more elaborate synthetic targets in pharmaceuticals and agrochemicals. Its chemical profile allows direct participation in transesterifications and amidations under the right conditions. Each pathway opens up doors for the creation of biodegradable detergents or potential therapeutic agents, keeping the molecule at the crossroads of industrial and laboratory science.
Methyl undecanoate goes by several names across journals and catalogs. You might see it called methyl undecylenate, methyl hendecanoate, or simply the methyl ester of undecanoic acid. These synonyms reflect small differences in naming traditions, but they point to the same chemical entity. Recognizing these alternate names saves confusion for researchers who jump between older scientific articles and current regulatory lists. Familiarity with these synonyms can also help in locating global suppliers and interpreting scientific literature, where translation or editorial choices can shuffle product names.
Methyl undecanoate doesn’t carry major safety hazards compared with many industrial chemicals, but that doesn’t mean you get a free pass on handling. Prolonged skin exposure or inhalation of vapors should always be avoided. The compound can irritate eyes and lungs, especially in concentrated form or poorly ventilated spaces. Laboratories and manufacturing plants enforce standard protocols—gloves, eye protection, and fume hoods keep workers safe. There’s also a push in regulatory circles to harmonize exposure limits and labeling, not just for worker well-being but to simplify international trade. Making compliance straightforward encourages broader adoption of safe practices.
Methyl undecanoate’s reach stretches into a range of industries. Its main uses revolve around analytical calibration for gas chromatography, especially in the testing of food, flavors, fragrances, and occasionally forensic samples. Its role as a reference material helps uncover contamination, map out ingredient lists, or standardize flavor extracts. Chemists use it in surfactant and plasticizer formulation, where its chain length and chemical stability match performance targets for emulsifiers and lubricants. In agriculture, the molecule sometimes sees life as an intermediate for new bioprotectants or synthetic pheromones. Each application area feeds back data that shapes future production standards, product improvements, and regulatory audits. The more consistent and transparent the product, the more trust builds across the supply chain.
Ongoing R&D constantly stretches the boundaries for methyl undecanoate. Scientists tinker with enzyme catalysis to increase yield and purity—making production less wasteful and more cost-effective. Research teams investigate the molecule’s degradation pathways in the environment, aiming to reduce the ecological footprint of fatty acid ester manufacturing. As research into bio-based chemicals advances, methyl undecanoate stands out as a bridge between traditional petrochemicals and renewable feedstocks. Studies on flavor and aroma compounds keep popping up, reflecting consumer demand for natural fragrances derived through what’s known as “green chemistry.” Real innovation comes from labs that integrate analytical, environmental, and production perspectives, balancing demand for purity, performance, and sustainability.
Toxicity data for methyl undecanoate remains limited but suggests relatively low risk compared to many synthetic chemicals. Animal tests so far point to low acute toxicity; the compound generally clears quickly from biological systems and tends not to bioaccumulate. Chronic exposure studies remain rare, partly because the molecule doesn’t see bulk use in consumer-facing products. Even so, ongoing screening for skin sensitization, environmental persistence, and metabolic effects deserve continued attention. Regulatory bodies tend to err on the side of caution, demanding continued monitoring and well-documented safety standards. In my view, the call for rigorous, transparent toxicity research is justified. A single overlooked risk can undermine the trust that technical standards work so hard to build.
Looking ahead, methyl undecanoate isn’t fading into the shadows. Its value as a standard in analytical chemistry continues to grow, especially as more countries demand traceability in food, pharma, and environmental testing. Emerging green chemistry platforms may enable higher yields and cleaner synthesis routes, cutting production waste and cost. Market expansion in cosmetics, specialty lubricants, and nutraceutical ingredients depends on reliable safety and supply. As global standards converge and transparency rises, methyl undecanoate’s fans—whether they work in laboratories or factories—get the operating confidence they need. Continued collaboration among scientists, regulators, and industry could create new applications, safer handling protocols, and more sustainable ways of making this versatile molecule. Its journey mirrors the broader story of science’s drive toward practical, responsible, and forward-thinking innovation.
Methyl undecanoate standard usually occupies a small spot in the chemical supply cabinet, but it has a strong impact in analytical labs. This compound steps up during quality control in food testing, environmental monitoring, and studies on fatty acid metabolism. It doesn’t grab headlines like other chemicals, yet it allows teams to make sense of complex mixtures, especially in gas chromatography (GC) and mass spectrometry setups.
Accuracy counts for everything in research. If someone runs a GC to study the fats in olive oil, methyl undecanoate standard lets each researcher check if their equipment gives reliable results, batch after batch. It's easier to spot mistakes or instrument drift when you have a known quantity and chemical identity as your reference. This also saves time; nobody wants to re-do a week’s worth of work because of uncertainty.
Nutrition labs regularly check food for specific fats. Governments ask for reports on what’s really inside a product. In these labs, this compound acts as a reference, marking exactly where a given fatty acid appears on a chromatogram. The methyl ester of undecanoic acid breaks down in predictable ways, letting technicians distinguish it from dozens of nearly identical fatty acids found in oils, milk, and other foods.
Outside food science, soil and water testers often need to identify possible pollutants. Methyl undecanoate standard provides an anchor, so results make sense across labs and regions. Without these standards, looking for trace contamination in a muddy river or inside rainwater samples turns into guesswork. Industries handling lubricants, plastics, or surfactants depend on tests built around these benchmarks, too.
I remember a colleague who once re-analyzed weeks of fish tissue samples, all because the team skipped a batch of standards. The results came back off by just enough to raise doubts about the bigger picture. That’s a simple example, but it drives home why repeatable, trustworthy data rests on calibration with standards like methyl undecanoate.
Cost used to hold some labs back, especially local food safety agencies or small research teams. Now, methyl undecanoate standard comes in affordable and chemically stable forms. Clear supplier documentation and tight batch controls mean researchers spend less time double-checking their tools.
Despite easier access, not every lab checks their standards as frequently as they could. In fields like environmental monitoring, where small errors change entire policy discussions, keeping reference standards fresh matters. It’s not only about buying pure chemicals, but also labeling and storing them properly. Sometimes, basic recordkeeping or communication breaks down as teams juggle busy schedules. Training and awareness campaigns, often overlooked, offer a simple fix and keep mistakes from snowballing into bigger headaches down the line.
Methyl undecanoate standard may hide behind the scenes, but its effect reaches from research benches to consumer tables. People expect trustworthy results about what’s in their food or region’s water, and that trust comes from reliable, repeated measurements anchored by proven standards. Handling this chemical with the attention it deserves lets data carry real weight, both in science and in our everyday lives.
Methyl undecanoate standard serves as a reference compound for analytical testing and calibration, especially in laboratories focused on chemistry, biotechnology, and pharmaceuticals. It’s a methyl ester of undecanoic acid, mainly relied on for its sharp, predictable properties that help researchers quantify and identify fatty acids and related compounds. Scientists, analysts, and formulators want their reference standards pure—no strange peaks on the chromatogram, no surprise side-products that might muddy results.
Most certified methyl undecanoate standards arrive with a purity of 98% or higher. The highest-graded ones push past 99%. Analytical work, especially calibration for instruments like GC-MS or HPLC, calls for this kind of purity. Imagine prepping a calibration curve with standard that’s just 90% pure—your readings would drift, the data wouldn’t add up, and time gets wasted troubleshooting false results. Worse yet, in regulated settings like pharmaceutical testing, such drift risks compliance and patient safety.
Even in food or biofuel research, trace impurities can change how a reaction unfolds or how contaminants get detected. I once worked in a quality control lab. When we shifted from 96% to 99% pure methyl esters for calibration, false positives in our contaminant screen dropped to almost zero. It wasn’t just about the numbers; it was confidence in our work.
Producers don’t just guess at purity; they show their work. Certificates of Analysis come standard, detailing test methods (often GC, NMR, or HPLC) and what the batch actually contains. Regulations demand these checks, and buyers dig for that data because it cuts down risk. Without such documentation, research and production slow down, sometimes to a halt—no one wants to repeat a big batch process over doubts about a standard.
High purity also speaks to careful handling. Each transfer, each bit of storage, presents another chance for oxidation or contamination. Companies that make reference standards usually store them under inert gases, sometimes ship them in glass-sealed ampoules, and guard them from light.
Testing standards have a ripple effect. Instrument calibration leans on these compounds, and tiny miscalculations in standard purity will echo down through every subsequent analysis. In environmental labs, trace pollutants can look like they're present in a sample just because a reference standard had a tiny impurity that matched the detection window. In pharma or clinical work, such confusion can carry legal or regulatory consequences. Consistent results tie directly back to purity.
Anyone purchasing methyl undecanoate standard should look past just the catalog description. Ask for a Certificate of Analysis, check that the stated purity matches your requirements, and see what impurities are specified. Buy from reputable suppliers that test every batch, not just the master lot. In the lab, treat chemicals labeled as ‘standard’ as if they’re precious—store them cold, dry, and protected from light. Revalidate or check standards regularly, especially for time-sensitive or high-stakes projects.
Higher purity costs more, but it saves money (and headaches) on the back end. Researchers and production teams who keep a close eye on standard quality avoid repeat experiments, uncertain data, and regulatory snags. In a world that’s driven by data, the little details—like a few tenths of a percent in chemical purity—make all the difference.
Anyone working in a chemical lab gets used to double-checking details, from reading labels to logging batch numbers. Methyl undecanoate standard holds an important place in labs, especially during quality control and analytical testing. I’ve seen how the smallest oversight in storage ruins entire sample sets or skews months of reliable results. It’s not just about protecting the bottle for the next person, but about building trust in every GC run and every research conclusion.
Methyl undecanoate tends to react to light and air. Every time the cap pops open, there’s a small chance for oxygen or moisture to sneak in. That contamination doesn’t always stand out at first. Over time, though, impurities start to build up. The International Union of Pure and Applied Chemistry and organizations like Sigma-Aldrich recommend storing methyl undecanoate in airtight amber vials. These do two things well: they keep light out, and they lock oxygen away from the substance.
It’s tempting to leave solvents and standards on a benchtop to save time. Yet methyl undecanoate breaks down easily at room temperature, especially in humid or warm conditions. I once saw a colleague lose weeks of calibration because the standard lost potency after sitting next to a sunny window. Industry guidelines—drawn from chemical safety datasheets and supplier advice—point to cold storage as the best bet. Keeping samples in a refrigerator, ideally between 2° and 8°C, slows degradation. Fluctuating temperatures speed spoilage and risk phase separation, never ideal outcomes if you want consistent, traceable results.
Repackaging can open the door to mistakes. I’ve learned not to trust generic plastic bottles or makeshift vials. Suppliers usually send standards in inert, sealed glass, with tamper-evident caps. There’s good reason for this: glass doesn’t react, and a clean seal keeps contaminants out. Reusing containers might look economical, but it compounds the risk of introducing residues or trace solvents, and you can’t always guarantee the absence of cross-contamination.
Precise labeling seems basic, but it’s a simple step that people skip when they’re rushing. Every storage unit—or refrigerator shelf—benefits from clear signage showing who owns what and when each bottle arrived. Logbooks and digital sample management systems save headaches later. In regulated labs, this is about more than convenience; it’s a legal safeguard. If an audit arrives, clear paper trails and evidence of temperature control help avoid costly setbacks.
Not all labs have luxury freezers or climate-controlled rooms, but basic steps consistently protect these reference materials. Keep vials cold, dry, away from direct light, and always sealed. Use fresh, clean pipettes for sampling. Flask sharing or “borrowing a drop” leads to unseen contamination. Every person in the lab can help by speaking up when something doesn’t look right—odd smells, cloudiness in solution, or unfamiliar labeling. Investing in extra amber bottles and labeling systems proves cheaper than repeating whole projects.
Many mistakes in storage come from hurried routines or from letting training slide. Ongoing reminders about best practices, even laminated beside fridges or on storage doors, raise everyone’s standards. Sharing real stories—failures as well as successes—keeps lessons fresh. In research, accountability and transparency start at storage, ripple out through analysis, and anchor the results in data that peers can trust. For anyone relying on methyl undecanoate standard, careful storage isn’t a chore, but the foundation of reliable science.
Methyl undecanoate shows up in laboratories across the world. Its molecular formula is C12H24O2. You get this formula by counting eleven carbon atoms from the “undecanoate” part and one more from the methyl group connected at the end. Chemists know it by this formula and rely on it to prepare reagents or run tests in food analysis, fragrances, and even plastics research.
The molecular weight lands at 200.32 g/mol. Every researcher turning to gas chromatography or mass spectrometry will jot this number in their notebook. Accurate records call for exact measurements. Calculation errors or mix-ups set the stage for failed reactions or wrong quantifications, wasting both time and chemical stock. Lab practitioners know mistakes cost money and trust, especially when working on tight budgets or for regulatory verification.
Methyl undecanoate makes its way into daily life by acting as a marker for quality control in food safety labs. Fish oil manufacturers depend on it for calibration curves that show purity. In perfumery, even the smallest difference in weight or formula influences scent profiles. Professionals involved in synthesizing biofuels and biodegradable plastics often turn to this compound to study reaction courses. Reliable standards mean reproducible research, which buyers and consumers both depend on.
Reliable information supports safe, predictable work in science and industry. Mistakes or sloppy records hurt reputation and could bring regulatory hassles. As someone who has handled chemical standards, I’ve seen how even seasoned lab techs double-check the molecular weight and formula before placing supply orders. It means not getting caught by surprise with a shipment of the wrong standard, which delays production runs.
Trust comes from solid, published data. Analytical labs rely on reference materials from organizations like NIST and Sigma-Aldrich. Supplies come with reference sheets confirming identity, formula, and weight. Researchers tend to keep the manufacturer data and run their checks with spectrometers or chromatography so nothing goes amiss.
Maintaining accuracy with methyl undecanoate involves both technology and good habits. Most labs invest in well-maintained balances, pure calibration gases, and regularly updated software. Staff training makes a difference—lab technicians learn early in their careers never to use guesswork or substitute similar-sounding standards. Institutions that supervise compliance focus on these best practices so reports and published findings hold up to review.
Documentation, secure labeling systems, and batch traceability cut down on mix-ups. For food and pharma, regulators demand hard proof that the substance matches its label—no room for error. Accurate molecular data protects consumers and helps labs meet strict rules like those set out by ISO and FDA agencies.
Errors or missing data ripple down the line, risking sample recalls or, worse, unwanted side effects in end products. Labs that double-check their methyl undecanoate and document everything show their dedication to safety and credibility in their work.
Choosing a trusted supplier for methyl undecanoate secures quality from the start. Investing in skilled staff, reliable measuring equipment, and transparent paperwork helps everyone feel confident. Quality standards give scientists control and peace of mind—everyone from lab assistants to heads of research benefits from getting it right the first time.
For those in routine analysis or custom synthesis, keeping reference materials and supplier sheets on hand cuts down on confusion. Simple routines—check the label, confirm the weight, and note the formula—build trust with lab partners and customers alike.
People working in laboratories know the drill when an unfamiliar chemical pops up on the safety sheet. Methyl undecanoate isn’t one of those big red-flag substances like benzene or hydrofluoric acid, but it gets a few looks because it’s rare outside certain research or industrial settings. The Material Safety Data Sheet (MSDS) offers the clearest picture: exposure brings low acute toxicity, which means direct skin or eye contact won’t trigger an emergency, but it still deserves respect.
Skin and eyes might get irritated after contact, usually prompting redness or itch. Breathing in its vapors won’t cause major respiratory misery for most people, but headaches or slight dizziness after heavy exposure can show up. That’s not uncommon for a lot of esters and similar organic compounds. Ingestion, although rare in lab situations, should be avoided across the board.
Walking into a workspace where methyl undecanoate standard is on the shelf, someone used to dealing with solvents and organic materials might notice it doesn’t ask for more personal protective equipment than your average ester. Gloves, goggles, and a lab coat work fine. A glove box isn’t necessary unless specific experiments call for a very clean environment.
Ventilation matters. Fume hoods aren’t just for noxious or highly volatile chemicals; they back you up if a spill or splash happens. Even though methyl undecanoate doesn’t throw off strong fumes, using it in open air goes against good safety habits. Most reputable labs keep spills contained and wipe down surfaces using standard cleaning solvents, rarely needing hazardous material teams.
Handling a methyl undecanoate standard may not ring alarm bells, but there’s more at stake than personal safety. Spills seep into drains unless someone pays attention. Like other esters, it breaks down fairly easily, but that doesn’t mean dumping it down the sink is smart. Local guidelines almost always require containment and disposal by a licensed waste handler.
Store it in a tightly closed bottle away from strong acids or oxidizers. Significant heat or sunlight can speed up decomposition, which can create pressure in a sealed container or alter its profile. Most bottles go in a cool, dark chemical cabinet—nothing fancy, but never at room temperature in direct sun. Fire risk rates low; methyl undecanoate does burn, but ignition isn’t likely without an open flame and some encouragement.
On a few occasions, I’ve seen new students make mistakes with organic standards by skipping gloves or using open benchtops. Luckily, the worst result was an afternoon itch, but that doesn’t mean the rules don’t matter. Over time, complacency stacks up, leading to accidents even with less-dangerous materials.
Standard training helps. A short reminder from a more experienced chemist about PPE, waste disposal, and cleanup keeps everyone a bit safer. Colleges and companies back this up with regular safety sessions, always citing the same facts from regulatory bodies like OSHA and the European Chemicals Agency. Those agencies agree: treat methyl undecanoate with care, stick with best lab practices, and serious accidents become rare.
Good safety habits mean less stress and fewer sick days. Everyone in the lab benefits from a shared understanding that all chemicals, even those labeled “low hazard,” deserve handling with care. Methyl undecanoate doesn’t call for the most advanced protection, but respecting standard precautions always pays off. This simple approach lays the foundation for a culture of health and responsibility, and it never hurts to walk out of the lab with peace of mind.
| Names | |
| Preferred IUPAC name | Methyl undecanoate |
| Other names |
Methyl undecanoate Methyl undecylenate Undecanoic acid methyl ester |
| Pronunciation | /ˈmɛθ.ɪl ʌnˌdɛk.əˈnoʊ.eɪt ˈstæn.dərd/ |
| Identifiers | |
| CAS Number | 111-82-0 |
| Beilstein Reference | 1721482 |
| ChEBI | CHEBI:46708 |
| ChEMBL | CHEMBL141828 |
| ChemSpider | 13113 |
| DrugBank | DB14497 |
| ECHA InfoCard | 03ebd0b2-48b8-4136-be26-ce6b1dae7bbe |
| EC Number | 214-013-9 |
| Gmelin Reference | 143857 |
| KEGG | C16547 |
| MeSH | D000446 |
| PubChem CID | 12497 |
| RTECS number | SL8585000 |
| UNII | C874T8ZL6S |
| UN number | UN1993 |
| CompTox Dashboard (EPA) | DTXSID8035108 |
| Properties | |
| Chemical formula | C12H24O2 |
| Molar mass | 214.36 g/mol |
| Appearance | Clear colorless liquid |
| Odor | Fatty |
| Density | 0.86 g/mL at 25 °C (lit.) |
| Solubility in water | insoluble |
| log P | 4.7 |
| Vapor pressure | 0.03 mmHg (25°C) |
| Acidity (pKa) | 15.6 |
| Basicity (pKb) | 14.22 |
| Refractive index (nD) | 1.429 |
| Viscosity | 5.127 cP |
| Dipole moment | 3.48 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 545.6 J/mol·K |
| Std enthalpy of formation (ΔfH⦵298) | -670.5 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -7115.2 kJ/mol |
| Pharmacology | |
| ATC code | V03AX |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | H319: Causes serious eye irritation. |
| Precautionary statements | Precautionary statements: P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235 |
| NFPA 704 (fire diamond) | Health: 1, Flammability: 2, Instability: 0, Special: -- |
| Flash point | > 113 °C |
| Autoignition temperature | > 220 °C |
| LD50 (median dose) | LD50 (median dose): Rat oral 5,000 mg/kg |
| NIOSH | Not listed |
| PEL (Permissible) | Not established |
| REL (Recommended) | 100 mg |
| IDLH (Immediate danger) | IDLH not established |
| Related compounds | |
| Related compounds |
Undecanoic acid Methyl decanoate Methyl dodecanoate |
