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N-Butyl formate traces its story back to the early chapters of organic chemistry, right along with many other esters that built the backbone of modern fine chemicals and industrial solvents. People have looked for effective solvents ever since chemistry turned from an art of alchemy into a calculated science. Chemists found that esters, with their characteristic fruit-like odors, offered more than pleasant scents; they brought practical value to coatings, fragrances, and syntheses. N-Butyl formate emerged as a reliable workhorse among formate esters, never as famous as ethyl acetate or isoamyl acetate, yet critical in many less visible but essential chemical processes. As industries scaled up, especially in coatings, adhesives, and flavors, demand for practical, adaptable solvents like n-butyl formate grew steadily, and manufacturers refined their methods to crank out this ester more efficiently and cleanly than in the early bench-scale days.
You rarely see n-butyl formate grabbing headlines, but it plays an unsung role across many sectors. People in organic synthesis reach for it as a specialty building block, especially where mild reaction conditions help. Its fragrance puts it on the radar for flavors and perfumes, even though it never quite became a standard for artificial flavors. Its role as a solvent makes it especially dear to anyone struggling to dissolve otherwise stubborn resins, inks, or adhesives. Folks working in laboratories know it not just by its main name, but through a list of synonyms: butyl methanoate, formic acid n-butyl ester, and a dozen trade names that often carry little marketing glitz. Real value comes from n-butyl formate's versatility—whether thinning out tough coatings or smoothing out a flavor mix in food science.
Chemists recognize n-butyl formate for its clear liquid state with a faintly sweet, fruity odor, reminiscent of ripe pears. Its boiling point sits comfortably in the middle range for esters, ensuring it evaporates without being overly volatile. This balance keeps it manageable in both small-scale reactions and large industrial operations. Its moderate polarity allows it to dissolve a broad palette of organic compounds, something not every solvent achieves. In labs and plants, miscibility becomes vital—n-butyl formate behaves predictably when blended with ethers, alcohols, or hydrocarbons. Handling it involves fewer headaches compared to pungent solvents like acetone, though it's far from benign. Its flammability means storage calls for care in facilities already juggling fire risks.
No one wants surprises when opening a drum of organic solvent. N-butyl formate usually ships in drum quantities with clear labeling that emphasizes purity, water content, and levels of acidic impurities. Chemists tend to look for purity levels exceeding 98 percent for sensitive applications, with trace moisture content kept far below 0.1 percent. The less water you have, the less risk of unwanted hydrolysis—which turns your hard-bought ester into formic acid and butanol right in your vessel. Labels carry regulatory markings to help with safe storage and handling, flagging flammability and inhalation hazards. Even a whiff in an unventilated space can cause eye or throat discomfort, so common sense dictates thorough ventilation, splash-proof goggles, and chemical-resistant gloves anytime you uncap a container in the lab or on the plant floor.
N-butyl formate comes together through classic esterification, usually from formic acid and n-butanol. People watched Fischer-Speier esterification prove itself for over a century, and this reaction hasn't lost its relevance. Acid catalysts like sulfuric acid push the equilibrium toward the ester, with water as the main byproduct. If you want high yield, you must efficiently remove this water—azeotropic distillation or molecular sieves do the trick. It’s one of those organic reactions that feels almost simple—mix, stir, separate, and purify. That said, at commercial scale, every little inefficiency multiplies, so plants run energy and mass balances to squeeze every gram of solvent while minimizing waste and emissions. Step back, and you see how much process engineering happens behind the scenes to turn an age-old bench reaction into a clean, safe, industrial process.
N-butyl formate opens up possibilities for downstream chemistry. Hydrolysis breaks it back down to formic acid and n-butanol under acid or base, a trick used in many purification steps. In reduction reactions, it delivers a gentle supply of formyl groups—often adding subtlety to synthetic routes in pharmaceuticals or agrochemicals. Chemists who focus on green synthesis appreciate how this ester acts as a mild, tunable reagent without the brute force hazards of other alkylating agents. Its relatively simple structure also lets researchers tweak it into more complex esters or incorporate it as a functional intermediate in laddered syntheses, all while maintaining a more sustainable toxicity and waste profile.
Names change from lab to lab, catalog to catalog. Butyl methanoate shows up in some older research papers, while European suppliers sometimes use formic acid n-butyl ester for export. Trade and regulatory bodies have harmonized naming, so global safety documents reference CAS 592-84-7. Knowing these alternate names matters—especially if regulations or customs paperwork mention a name you don't usually use. Chasing up synonyms saves headaches for anyone trying to track down the right material in procurement or verify it meets regulatory registration.
N-butyl formate’s hydrophobic and volatile character increases both convenience and hazard. A flash point just above room temperature means just one careless spark could ruin more than your day. Solvent vapors work their way into the air before most people notice, carrying both flammability and health risks—fire marshals never take kindly to an unlabeled, open bottle of it in a busy workshop. Regulations worldwide require solid ventilation, ground-level ignition controls, and sensible PPE. The material safety data sheets lay out the basics, but in practice, workers and chemists watch out for cumulative exposures, splashes, and spills. Skin contact causes irritation, and lung exposure leaves people coughing—risks most acute in smaller workshops or during transfer operations. Chemical hygiene plans spell out the right steps: fume hoods, splash goggles, and regular air monitoring.
Manufacturing paints, coatings, and adhesives would run up against roadblocks without a portfolio of reliable solvents. N-butyl formate finds a niche thanks to its ability to dissolve many binders and resins, giving paint makers a solvent that gets the job done without adding extra toxicity or off-odors. In the flavors arena, chemists keep it in their toolkit even though more volatile esters tend to steal the show—sometimes, you need the subtler note n-butyl formate brings. For synthetic chemists, it’s not just a solvent, but sometimes a nuanced reagent, especially in asymmetric synthesis or controlled reductions. These roles shift as the green chemistry movement pushes industries to rethink every solvent and raw material. People in sustainability focus now look at lifecycle analyses to weigh if n-butyl formate’s impacts stack up favorably against traditional alternatives.
Researchers in academic and industrial labs use n-butyl formate both as a standard solvent and as a focus of study. Investigators keep chasing greener, safer processes—looking into biocatalysts or alternative energy inputs for its synthesis. Papers published over the last decade dig into optimizing catalyst systems that can cut energy and raw material inputs, aiming for tighter atom economy. Product development teams in coatings and specialty chemicals run panels and simulations to try new resin blends that take advantage of n-butyl formate’s solubility without sacrificing performance. In academic chemistry, projects continue to screen its reactivity in areas like transfer hydrogenation and carbonylation, sometimes finding effects that older solvents miss or suppress. There’s a steady interplay between academic curiosity and industry pragmatism, each fueling improvements that ripple across cost, safety, and process reliability.
N-butyl formate doesn’t carry the hazardous reputation of highly toxic solvents, but it still gets scrutinized for workplace and environmental health. Inhalation produces headaches and respiratory irritation. Animal studies show LC50 values that put it in the mild-to-moderate toxicity range. Given wide use in chemical processing, regulatory agencies ask for animal and environmental data to keep exposure limits grounded in science. Bioaccumulation risks look minimal because the body hydrolyzes it out through normal metabolic pathways, but risk models still evaluate long-term or acute high-dose issues. Workers exposed to high vapor concentrations over many hours risk cumulative effects, especially in spaces where ventilation lags or PPE slips. Attention to chronic exposure continues to rise, especially as workplaces push for lower permissible exposure limits and green-chemistry benchmarking.
Sustainability looms large over the future of solvents. Discussions in chemical engineering circles pivot now to renewable feedstocks and energy-efficient synthesis. Efforts grow to replace petroleum-based n-butanol with bio-based sources, setting a path for n-butyl formate to carve out a greener story than older petrochemical solvents. Green chemistry guidelines push researchers and manufacturers to assess every process for energy and emissions, renewing focus on efficient catalysis, improved waste recovery, and new reactor designs. Researchers build on old knowledge, creating ways to perform esterification with minimal water waste, using less hazardous acids, and advancing continuous processing over batch operations. For many industries, n-butyl formate’s balance of solvency, cost, and manageable toxicity keeps it relevant, but its margin sits at the intersection of safety standards, regulatory shifts, and the drive toward cleaner, safer solvents for the generations ahead.
N-Butyl formate lives most of its useful life far away from public attention. Its name rarely pops up at dinner parties, but I’ve found that understanding what goes into everyday products can build trust and appreciation for how things work. N-Butyl formate falls into the family of esters—those tangy-smelling chemicals that often whisper “fruity” or “sweet” in perfumes and flavors. In the world of industry, it isn’t the scent that counts most. People turn to N-butyl formate for its steady hand as a solvent and an ingredient builder.
If you ever stripped paint from a piece of wood, you might’ve caught the sharp smell of solvents. Manufacturers demand something that can break things down, clean up, or help two different materials blend. N-butyl formate’s knack for dissolving varnish or lacquer fits right in. Furniture makers rely on it because it leaves fewer residue headaches and speeds up drying. The rapid evaporation comes in handy—especially when workers need to prepare another layer or finish before lunchtime.
In car workshops and body shops, paint jobs need solvents to apply smoothly and cure evenly. N-Butyl formate works in these spaces because it pairs well with nitrocellulose lacquers, giving car finishes the kind of gloss and polish you can spot halfway down the street. It’s not the only option, but it offers a blend of price, effectiveness, and manageable hazard—important for those thinking not just about cost but about safety and air ventilation.
N-Butyl formate isn’t just about cleaning up or dissolving messes. Chemists use it as a middle step, a sort of “bridge” compound. It can turn into other chemicals that matter for daily living. Take flavors and fragrances—by tweaking molecules like N-butyl formate, specialists create base notes and high notes for perfumes, as well as additives for foods and drinks. These flavors might not jump out, but they fill out jams, candies, and beverages. My own time reading labels at the grocery store shows how many unrecognized compounds shape the bite and aroma of food.
Like any solvent, N-butyl formate asks for respect. If inhaled in large doses, it irritates the nose, throat, and eyes. Production workers definitely wear masks, keep air flowing, and monitor safe handling. Authorities like the EPA and OSHA set exposure limits. Researchers have flagged its flammability and the need for proper storage away from heat sources. This approach isn’t about scaring consumers, but rather about keeping risks as low as possible so that people can keep making products safely. In the US, safety sheets and hazard symbols guide companies in teaching staff and complying with law.
For many, questions remain about whether solvents like N-butyl formate really need to stick around, or if greener, less volatile options can take over. Industry already tests bio-based solvents that keep the same punch without the fumes. Moving large-scale manufacturing toward these alternatives takes more than a memo—it needs strong incentives, research grants, and clear evidence they hold up in practice.
Learning about chemicals like N-butyl formate doesn’t just serve idle curiosity. Whether renovating a kitchen or working in a lab, knowing which compounds power each process makes it easier to weigh risks, choose safer products, and push for reasonable regulation where it matters most. N-butyl formate may hide behind complicated names, but its touch shows up far more places than most folks expect.
N-Butyl formate turns up in places few people expect. As someone who’s spent time in both a lab and the backroom of a paint supply shop, I can tell you that these “invisible” chemicals pop up far more than people think. Its chemical formula, C5H10O2, might look simple at first, yet it shapes a whole chain of experiences for workers and consumers.
Take that formula apart. You’ve got five carbons, ten hydrogens, two oxygens. N-Butyl formate comes together through a reaction involving formic acid and n-butanol. This process gets used in the chemical industry for pretty straightforward reasons—cost, efficiency, and a reliable end product.
Just about every chemistry student spends classroom hours memorizing formulas like this, but knowing a formula isn’t enough. Being able to recite C5H10O2 doesn’t feed a family, keep a workplace safe, or protect an aspiring painter’s lungs. What matters is knowing what the formula means in the real world, how it behaves, and who interacts with it.
N-Butyl formate finds its way into fruit flavorings, perfumes, and solvents for paints or coatings. Anyone who’s ever stripped a piece of old furniture or worked in an industrial print shop has probably breathed in its fruity, pear-like odor. The sweet scent misleads many newcomers. A face mask might not sound necessary in those environments—until headaches and irritation start cropping up. Proper airflow, safe storage, and real commitment to good practice keep both home DIYers and pros away from unnecessary risk.
Accidents related to mishandled solvents aren’t rare. Stories circulate in workshops—someone gets dizzy, someone else gets a chemical burn. It’s the sort of experience that sears safety into your mind but doesn’t always make it into textbooks.
The formula C5H10O2 might stay the same on the test paper, but experience shapes its meaning out in the world. I’ve seen coworkers react to these vapors without enough fresh air, and it draws attention to why clear labeling and education matter. Colorful hazard symbols and Material Safety Data Sheets make a real difference, especially for those just getting started. Plenty of seasoned pros still underestimate organic solvents until something goes wrong.
Enforcing stronger guidelines on clear ventilation, practical PPE, and updated training can reduce health incidents for anyone working with chemicals like n-butyl formate. Introducing low-toxicity alternatives or limiting volatile exposure indoors would go further in protecting health. Most importantly, workers and students both remember real stories and shared experiences—more than lists of properties—so open conversations about chemical hazards should become part of regular practice.
Knowing the formula C5H10O2 helps identify n-butyl formate, but recognizing its impact and keeping people safe builds real expertise. Whether working at a production facility or mixing up a fruit-scented cleaner, everyday decisions hinge on more than chemical equations. Health, awareness, and the willingness to speak up make the biggest mark.
N-Butyl Formate sounds harmless, almost like an ingredient you’d find in a chemistry set from high school. In reality, it packs some real hazards. This liquid, used as a solvent and sometimes popping up in the flavors and fragrances world, can become a problem fast without the right respect. Anyone who's handled industrial solvents knows the sharp smell, quick evaporation, and the sting in your eyes or nose if you get too close. At the jobsite or in the lab, a quick slip-up can land you in trouble before you realize what’s happened.
Cracking open a drum or beaker, the first thing you notice is the sharp, fruity odor—almost sweet, kind of misleading. Fumes rise quickly, and they shouldn’t be taken lightly. Ventilation matters. Working in a closed area means those fumes build up, and too much exposure brings on headaches, dizziness, and nausea. I’ve watched colleagues come away red-faced and woozy because the exhaust fan was off or the window was closed for “just a minute.” That minute cost them the rest of their shift.
Splashing is another real risk. The liquid burns on contact with eyes or skin, so anyone handling it needs splash goggles and chemical gloves—latex isn’t enough; nitrile or neoprene work better. Wash stations should stand nearby. Fast response makes a difference. In one small spill I saw, a tech rinsed his skin right away, and it stopped a minor accident from turning into a hospital visit.
N-Butyl Formate ignites at low temperatures and spreads flames quickly. Static electricity or a dropped tool can spark a fire. I’ve sat through fire drills that felt like overkill until the day a spill near a hotplate turned the lab into a scramble to reach extinguishers. No one wants to test if emergency gear works during an actual fire. Keeping containers tightly closed and storing them away from direct sunlight and ignition sources isn’t just good practice—it’s a lifesaver. In practice, that means no space heaters nearby, and always using grounded equipment to prevent static shocks.
Emergency spill kits should sit within easy reach, not locked away in a supply closet. During my time in a manufacturing plant, a quick-thinking coworker surrounded a spill with absorbent pads and kept it out of the drains. It saved both time and a call to the fire department. Absorbents soaked with the chemical should go into a sealed metal container, away from anything that can burn.
Getting rid of N-Butyl Formate waste can't be an afterthought. Pouring leftovers down the drain risks fouling water supplies and can be illegal. Collected waste gets transferred to a labeled, sealed drum, treated as hazardous until picked up by a certified disposal team. Documentation matters, too; fines for cutting corners come down hardest on people who think they’re too busy to write things down.
Safety training should get treated as a real job, not a box to check. A culture of prevention sticks when everyone—from the new hire to the plant manager—models the right steps. In places where safety talks happen regularly and people feel empowered to speak up, accidents drop off. Trust takes shape when teams know someone’s always ready to step in and do what’s right, every single time the drum gets cracked open.
N-butyl formate, a clear liquid with a pleasant, fruity odor, enters labs and factories for plenty of reasons. The boiling point draws attention because it sets the stage for how this solvent acts under heat. Experts put its boiling point right at 107°C, or about 225°F. Don't just file this number away. For chemists and industries, this figure tells you how careful you have to be once the heat turns up. The risk of vapor formation, fire, or even potential exposure grows as you approach this temperature.
During my years in both academia and manufacturing, I’ve seen folks shrug off numbers on a safety sheet, treating the boiling point as a mere fact. Once, while working in a small lab, a colleague misjudged the rate at which N-butyl formate evaporated. The result: an entire room filled with that distinctive odor—and a whole lot of fresh air required to clear things out. If you’re heating this compound, that 107°C mark isn’t just trivia. It’s the line between safe handling and accidental inhalation.
Humidity, airflow, and equipment all play their part. Every time we used open beakers, especially on a summer day or with spotty ventilation, even keeping well below 107°C let enough fumes loose to get some stares from folks down the hall. A good fume hood and a temp check on the thermometer kept problems to a minimum. Watching these details keeps the workspace safe, and no one gets a headache from the solvent vapors.
The boiling point offers valuable clues to companies exploring safer and more sustainable ways to make products. In the perfume world, for example, a low-boiling point solvent like N-butyl formate helps extract fragrances from plants with less heat. The result? Gentler processing, fresher aromas, and less breakdown of delicate oils. If someone bumps the temperature too high, you end up with lost product and foul-smelling residue.
On the flip side, manufacturers in coatings and paints favor this ester for its volatility. They want the solvent to evaporate at a predictable rate. A boiling point of 107°C strikes a balance: fast enough to deliver a quick-drying finish, slow enough to let the liquid level out smoothly across the surface.
Knowing the boiling point gives a head start on hazard prevention. The higher the temperature, the greater the vapor pressure. If containers aren’t sealed well, the risk of accidental emissions or fire jumps. I once watched a coworker forget this lesson. One improperly closed container left near a radiator meant a room full of harsh fumes within minutes. It hammered home the message that solvent safety starts with the basics: tight lids, cool storage, and respect for the numbers on the datasheet.
Teaching new lab workers or operators should always focus on these data points, not just safe use but also response in case of accidental heating. A clear evacuation plan and easy-to-read safety instructions keep small incidents from turning into emergencies.
Regulators ask for accurate boiling point data to set workplace exposure limits. 107°C gives both regulators and safety managers a foundation for reasonable safety practices. With more industries moving toward worker health and green chemistry, understanding these properties gets everyone on the same page—no guesswork, no second-guessing.
N-butyl formate’s boiling point at 107°C might look like a number on a chart, but it’s a key detail in chemical safety, product innovation, and protecting workers’ health. Every step from storage to application builds on this one temperature, and respecting it pays off, both in quality and safety.
N-Butyl formate pops up in laboratories and industrial settings for good reason. As a solvent in coatings or flavors, it gets the job done. Still, this stuff is much more than a line on a purchase order. N-Butyl formate brings some tricky hazards. It’s volatile, catches fire quickly, and inhaling too much can wreck your day. Getting careless with its storage invites trouble for workers, equipment, and even the neighbors down the street.
Cramming N-butyl formate into any old storeroom might look like a shortcut, but it opens a big can of problems. Leak a little, and the vapors don’t just stay put; they float, ready to ignite from a static spark or pilot light. Even forgetting a closed lid for a few minutes can mean trouble because fumes build up in cramped spaces. Safe storage isn’t just about following a rulebook; it’s about keeping real people away from avoidable harm and stopping small accidents from spiraling.
Metal safety cans with self-closing lids outlast ordinary containers. Flame arrestors add another layer of defense, turning a risky bottle into something a little more reasonable. In my time around busy shops, I’ve seen the difference between storage inside a steel flammable cabinet versus a cluttered shelf. The steel keeps the contents isolated from heat and limits the fallout if something really goes wrong. Most cabinets have ventilation slots, but don’t just open them up to any workroom. Always check for strong airflow pulling vapors outside and away.
Tucking chemicals into a back corner invites mixing with incompatible stuff. Store N-butyl formate in a spot away from acids, oxidizers, and open flames. Even a single stray bottle can kick off a reaction if it meets the wrong neighbor. Many accidents start small and come from cracks in routines. Drawing from my years working around storage spaces, routine checks on containers catch leaks before they build up. Labels fade, caps loosen, and little details like that mean everything.
N-butyl formate breaks down if it gets too hot or sits in strong sunlight long enough. Aiming for cool, shaded areas shields it from early decay and reduces the risk of pressure building up inside containers. Internal pressure makes lids fail or containers burst. Keeping it cool means less vapor in the air, lowering the fire risk. Do what you can to store it at a temperature between 15°C and 25°C (59°F to 77°F).
Even careful teams make mistakes. Spill kits with absorbents showing up nearby save time during mishaps. If someone forgets their gloves or goggles, emergency showers and eyewash stations change the outcome. Go through emergency drills often. Quick, confident responses come from repetition. Most places with chemical storage use signage and access restrictions, not just for insurance compliance, but because it works in the heat of the moment.
It’s easy to think paperwork handles most of the heavy lifting. The reality speaks differently. Direct conversations, sharing near-miss stories, and actually walking the storage space with a checklist stop most issues before they grow. Better storage practices aren’t just about safety data sheets—they’re about everyone heading home in one piece. That sticks with you longer than any set of laws or signs.
| Names | |
| Preferred IUPAC name | butyl methanoate |
| Other names |
Formic acid n-butyl ester Butyl methanoate n-Butyl methanoate Formic acid butyl ester Butyl formate |
| Pronunciation | /ˈɛnˈbjuːtɪl ˈfɔː.meɪt/ |
| Identifiers | |
| CAS Number | 592-84-7 |
| Beilstein Reference | Beilstein Reference: 1718737 |
| ChEBI | CHEBI:44372 |
| ChEMBL | CHEMBL504916 |
| ChemSpider | 12611 |
| DrugBank | DB14507 |
| ECHA InfoCard | 100.007.796 |
| EC Number | 203-700-6 |
| Gmelin Reference | 5881 |
| KEGG | C19596 |
| MeSH | D019275 |
| PubChem CID | 8057 |
| RTECS number | LQ9625000 |
| UNII | 0U5IEH5D2K |
| UN number | UN1129 |
| Properties | |
| Chemical formula | C5H10O2 |
| Molar mass | **88.12 g/mol** |
| Appearance | Colorless transparent liquid |
| Odor | fruity odor |
| Density | 0.871 g/cm³ |
| Solubility in water | 9.6 g/100 mL (20 °C) |
| log P | 0.97 |
| Vapor pressure | 17 mmHg (20 °C) |
| Acidity (pKa) | 7.83 |
| Magnetic susceptibility (χ) | -8.44 × 10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.391 |
| Viscosity | 1.045 mPa·s (20°C) |
| Dipole moment | 1.92 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 246.8 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -444.1 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -2341 kJ/mol |
| Pharmacology | |
| ATC code | V03AB44 |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS02,GHS07 |
| Signal word | Warning |
| Hazard statements | H226, H315, H319, H336 |
| Precautionary statements | P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P305+P351+P338, P370+P378, P403+P235 |
| Flash point | 17°C |
| Autoignition temperature | 185 °C |
| Explosive limits | 1.4% - 8.0% |
| Lethal dose or concentration | LD50 oral rat 3,080 mg/kg |
| LD50 (median dose) | LD50 (median dose): Oral rat LD50 = 3,000 mg/kg |
| NIOSH | WA2150000 |
| PEL (Permissible) | PEL (Permissible Exposure Limit) of N-Butyl Formate: 100 ppm (parts per million) |
| REL (Recommended) | 2 ppm |
| IDLH (Immediate danger) | 340 ppm |
| Related compounds | |
| Related compounds |
Methyl formate Ethyl formate Propyl formate Isobutyl formate Butyl acetate |
