© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Butylamine’s story gives us a good example of how basic chemicals have quietly shaped critical industries. Early chemists started isolating and using butylamine more than a century ago, prompted by the need for new building blocks in pharmaceuticals and pesticide development. Rapid industrialization brought a hunger for amines, and butylamine fit the bill. Companies looking for affordable and accessible precursors leaned hard on this compound. I remember reading how German chemical firms in the early 1900s published their syntheses and touted butylamine as a versatile, practical solution for engineers and chemists chasing advances in multiple fields. This wasn’t a substance anyone found in their backyard, but the practical know-how to create it helped scientists push boundaries in dye-making, rubber processing, and synthetic drug design.
Butylamine stands out for its simplicity and punch. It’s an aliphatic amine with a straightforward formula (C4H11N), classified as a primary amine. In practice, most people encountering it see a clear, colorless liquid that brings a sharp, fishy smell. Its boiling point hovers around 78°C, and it mixes well with water and common organic solvents. That unique odor acts as a reminder that small amine molecules tend to carry some punch. Folks in labs usually remember their first whiff pretty well. The combination of being both reactive and stable makes it a reliable tool, whether you’re making something new or modifying an old process.
Butylamine’s basicity draws attention: it pulls in protons with gusto, setting the stage for organic synthesis. Picture a clear, mobile liquid, flashing that unmistakable amine scent. Its density ranks below water, and the molecule doesn’t tend to linger in the environment—sunlight and oxygen break it down pretty efficiently. The free lone pair of electrons on nitrogen makes butylamine reactive enough to interface with acids, alkyl halides, and a host of other functional partners. Once you’ve handled it, you notice the volatility; careful storage remains critical, and labs using it long-term bring in good ventilation and proper refrigeration. Its solubility means that disposal and spillage carry environmental considerations, not just immediate workplace challenges.
Precise labeling on butylamine drums isn’t just a paperwork problem. Concentration, impurity levels, and trace metals influence synthesis outcomes downstream. Pharmaceutical research labs track these metrics to ensure each reaction behaves as expected. Inconsistent labeling pushes up the odds for failed batches, wasted time, and costly cleanup. From my experience, working with untested or off-grade chemicals usually creates headaches—repeated purifications, troubleshooting, or, worst of all, contamination that surfaces only after you’ve moved ahead several steps. Regulators want to know where butylamine came from, its precise identity, and what lurks inside a barrel. Transparency protects workers and the public, and it makes sense for companies seeking reliability and safety.
Production starts with a simple approach—reacting butanol with ammonia over catalysts, bringing together high temperatures and controlled pressures. Watching chemical engineers optimize these conditions reveals just how much trial, error, and experience inform best practices. The choice of catalysts, from alumina-supported precious metals to cheaper alternatives, dictates yields, purity, and profits. Manufacturers track variables like reaction time and temperature shifts; these influence byproduct formation and energy use. I’ve seen teams in pilot plants adjusting feedstock ratios to squeeze a few extra percent out. It’s a dance between chemical efficiency and cost control, informed by decades of recipes and incremental tweaks in production lines around the world.
Butylamine holds a prime spot on the workbench of any synthetic chemist needing alkyl amines. It can pick up acyl groups to make amides, serve as a nucleophile in substitution reactions, or build more complex molecules with pharmaceutical activity. Its primary amine group opens routes for functionalization—catalytic hydrogenation, amide coupling, or Schiff base formation, to name a few. One understated aspect is its role in forming surfactants and corrosion inhibitors. Over the years, researchers have discovered that butylamine reacts cleanly in these pathways, supporting both scale-up and specialty chemicals development. This adaptability means chemists continue exploring its potential—new uses keep emerging as researchers test and fine-tune their ideas.
Scan a chemical catalog, and you’ll run into a handful of familiar names for butylamine. Some labels read n-butylamine, 1-butanamine, or monobutylamine. Nomenclature changes by region and supplier, but the core substance stays the same. Lab veterans know synonym confusion leads to misplaced orders or incompatible substituents, especially when dealing with isomers or similar-sounding compounds. Knowledge about alternate names isn’t just trivia—it’s a shortcut to efficient procurement and safeguards against supply-chain blunders.
Working with butylamine brings clear safety hurdles. The vapor irritates eyes, skin, and the respiratory tract, so fume hoods and gloves become standard gear in labs and factories. Spills call for immediate cleanup since lower flash points present fire risks. Chronic exposure or poor handling can provoke long-term health effects, including sensitization. Regulatory bodies like OSHA and the European Chemicals Agency set exposure limits, demand clear hazard communication, and require facilities to install adequate ventilation. In some plants, regular air monitoring becomes part of the job, and managers keep safety data sheets within arm’s reach. Training on emergency procedures turns into routine, not just a box-ticking exercise. For users, these standards have roots in hard-learned lessons—historical incidents showed that shortcuts in handling small amines rarely end well.
Butylamine blends into everything from rubber chemicals and pesticides to pharmaceutical intermediates and dye-making. In the rubber industry, it helps create agents that control polymerization. In crop protection, its role as a building block for active molecules makes a direct impact on yields and pest management. Pharmaceuticals use it as a reagent in custom syntheses, building molecular complexity without tacking on excessive costs. These uses add up: you find traces of R&D innovation in each application, reminders that chemical foundations help scaffold high-value commercial and public outcomes. Based on discussions with industry chemists, companies continue chasing even broader uses—formulation tweaks, new routes for polyurethanes, and even electronic materials get attention in labs today.
Research spans everything from greener synthesis methods to the discovery of new butylamine derivatives for medicinal chemistry. Academic labs focus on catalytic pathways that lower environmental impact, aiming for minimal waste and higher selectivity. Meanwhile, pharmaceutical companies test derivatives aiming to unlock better biological activity. One bottleneck: controlling side reactions and achieving single, clean products on a large scale. Scientists share protocols and swap tips, but process improvements can take years to propagate through the industry. The hunt for catalysts that handle higher throughput without expensive post-purification gets a lot of attention. Many researchers also test butylamine in emerging materials chemistry, like organic electronics and advanced polymer blends, playing with new hybrids and copolymers. It isn’t just about old-line commodities; the compound remains a jumping-off point for bigger ideas.
Toxicity data spells caution. Acute exposure irritates mucous membranes and impacts respiratory function, while chronic low-level exposure raises concerns about sensitization and long-term toxicity. Animal studies help define exposure limits, but translating this to complex workplaces takes more than charts and graphs. My own experience working near reactors that handle amines has taught me the importance of personal protective equipment and up-to-date training on spill response. Workers must know the symptoms of exposure—headaches, eye watering, or skin irritation—and companies draw on these facts to design robust monitoring and medical check-up routines.
Butylamine may seem ordinary, yet its future looks linked to advances in sustainable synthesis and specialty material development. As green chemistry pushes for less waste and more efficient catalysis, production methods shift toward lower environmental footprints. Startups and research consortia are exploring pathways that slice greenhouse gas emissions while keeping costs in check. In pharmaceuticals and agrochemicals, the need for safer, more selective intermediates keeps this compound in high demand. It has all the hallmarks of a chemical that stays relevant—adaptable, efficient, and trusted by professionals creating breakthroughs in established and emerging sectors. Each advance opens new pathways for discovery, making butylamine a case study in how plain-looking molecules can support innovations for decades to come.
Most people have never heard of butylamine, but the truth is, chemicals like this quietly prop up parts of daily life most folks don't think about. Butylamine is a colorless liquid with a sharp smell—think ammonia with a gasoline twist. Its power comes in what it can do once it’s out of the drum and in the hands of someone who knows their way around a lab bench.
Butylamine plays a behind-the-scenes role in big industries. Its story usually starts in the pharmaceutical world. Here, it’s often picked as a starting material or key step in making everything from anti-tuberculosis drugs to blood pressure medications. In my university days, I saw medicinal chemists work through countless molecules, and butylamine often came up in their research meetings—quick to react, able to build all sorts of useful structures.
Agriculture leans on butylamine as well, especially for making herbicides. Take butralin, a weed-killer. Its backbone relies on butylamine chemistry. Without it, farmers would struggle to protect crops from unwanted pests. Less healthy crops mean more expensive groceries—something every family feels.
Paints, rubbers, and plastics need chemicals with energy, and butylamine has just that. Manufacturers use it as a curing agent in rubber processes, helping tires and seals keep their grip and structure. In certain plastics, butylamine pushes reactions forward fast, which keeps costs down when churning out everyday goods.
On the analytical chemistry front, butylamine shows up as a component in gas chromatography. Labs run countless samples using this technique, searching for tiny traces of pollutants or performance-enhancing drugs. Adding a dash of butylamine improves the separation of specific compounds, giving chemists sharper data.
Butylamine also hooks into the production of flotation agents for mining. This work keeps copper, lead, and zinc flowing, feeding essential technologies. Try building a modern car or wind turbine without these metals—it’s impossible.
Chemicals as reactive as butylamine don’t come without concerns. Breathing in its fumes or getting it on the skin isn’t something to shrug at. I’ve seen too many students underestimate just how fast it stings. Proper training and equipment are non-negotiable. Factories and labs must keep safety high on the list—good ventilation, storage that prevents leaks, and emergency wash stations.
Regulators watch butylamine with a care similar to what they give other amines. The EPA and OSHA set rules for handling and exposure, aiming to prevent accidents that can end careers or lives. Companies can’t afford shortcuts here. Public trust depends on it.
Safer alternatives interest a growing number of chemists and environmental advocates. Some research teams are working on tweaks to butylamine’s structure or testing completely different compounds. The goal is to keep performance but reduce danger. None of this happens overnight, but ongoing research promises steady progress.
Butylamine may lack a flashy profile, but its reach is long. Medicine, food, technology—all tie back, in small ways, to the kind of chemistry butylamine makes possible. The drive for safety and sustainability will continue to shape its use in the future.
Butylamine isn’t a household name, but people use it across farms, labs, and factories. Some workers know its pungent smell, since a whiff of it can clear a room. It’s flammable, corrosive, and sometimes causes serious breathing or skin problems if handled carelessly. Agencies like OSHA and the CDC pay close attention to chemicals like butylamine because real harm can happen. Even when labeled correctly and stored well, spills and splashes may lead to chemical burns or worse. People working with it want the truth about its risks, not just another dry data sheet.
Most folks aren’t sipping or bathing in butylamine, but accidental exposure feels ugly and risky. Splashing butylamine on your skin might leave a nasty burn, especially if left for more than a second or two. Breathing in high levels causes throat and nose irritation. Workers have reported headaches and trouble breathing in poorly ventilated rooms. There’s little doubt it’s toxic in concentrated form. Studies point out rats exposed to high levels showed organ changes.
Swallowing this chemical can trigger nausea and vomiting. In some medical journals, doctors mention cases where ingestion led to organ irritation, and immediate treatment was needed. Even for brief tasks, eye protection and gloves save real people from unnecessary harm.
Cheap storage or careless handling multiplies risk. One spark can turn a spill into a flash fire, as butylamine vapors ignite easily. Fire marshals report that even static electricity can light up spilled liquid. In workplaces with tanks or drums, grounding and ventilation stop injuries and property loss. I've seen near-misses in busy workshops, where one forgotten spark from stuck machinery nearly set off a vapor cloud. Stories like these keep safety teams on their toes.
Preventing harm doesn’t need robots or fancy labs. Simple steps, like proper seals on storage drums, help. Teams who learn chemical hazards regularly—hands-on, not from a sleepy PowerPoint—understand dangers much better. I’ve known plenty of older workers who swear by splash goggles, not because it’s regulation, but because they learned from seeing eyes get burned or lungs scorched.
National agencies warn about long-term effects of constant exposure. Over months, even low-level contact causes dry skin, chronic coughing, or long-lasting sinus trouble. Good ventilation isn’t optional in any space using butylamine. Monitoring air levels makes a big difference—if sensors catch a leak early, dozens of health problems never arrive.
Many shops keep antidotes or neutralizing agents within reach, and supervisors insist on emergency drills. The best work floors treat chemical safety like fire safety: not as a once-a-year reminder, but as a routine. Talking about near-accidents, keeping clear evacuation routes, and checking personal protective equipment strengthens the culture on any team large or small.
No one needs a PhD to respect butylamine’s risks. Honest training, decent ventilation, and a watchful eye stop most injuries. Real safety means workers trust each other to warn about shortcuts or trouble. That’s what counts, more than any technical label or release form. People learn to take care of themselves and their crew, not because a rule forces them, but because a little awareness goes a long way in keeping everyone healthy.
Butylamine isn’t something everyone talks about at family gatherings, but it's a simple molecule with a clear identity. Its chemical formula is C4H11N, and it’s a straight-chain primary amine. That means it comes from butane, with one hydrogen swapped out for an amino group. A lot happens on a molecular level, and there’s value in looking close, especially since this compound shows up in many corners of industry and research.
Think about all the materials and products packed into daily life: synthetic rubber, pharmaceuticals, pesticides, dyes. Butylamine has a role in these, starting at the molecular scale and stretching through to the processing floor. Its formula, C4H11N, gives it four carbons, eleven hydrogens, and one nitrogen. That configuration offers just the kind of flexibility needed to tweak performance in drugs or manufacturing chemicals that target pests.
Knowing the chemical formula does more than satisfy a trivia itch. Research and industrial safety rely on it. C4H11N reveals not only butylamine’s structure, but the number of explosion risks and the type of personal protection required in a lab or plant. Nitrogen brings flammability concerns, and eleven hydrogens mean you can expect volatility and a strong, fishy odor. Safety sheets repeat this formula for a good reason. People working with butylamine respect those letters and numbers—it’s not just about mixing stuff, it’s about staying alive and clean.
Some compounds slip under the regulatory radar, but butylamine catches attention for its health impact. C4H11N isn’t something you want on your skin or in your lungs. Direct contact can irritate. Breathing it might take a toll. So, labs keep fume hoods ready and gloves handy. On the environmental side, any spill matters. Nitrogen-containing organics in the environment can boost algae growth in waterways and shift delicate balances in ecosystems. Responsible handling starts with understanding that chemical formula and acting on it—not after an accident, but every day.
Being aware and prepared starts with solid chemical literacy. Schools might focus on the basics, but it doesn’t stay academic. Anyone stepping into a lab or production line needs to see C4H11N as a signal to check gear, storage, and readiness in their daily work. Regulators, too, need to keep an eye on demand and production trends, updating guidelines as new uses emerge. It’s worth expanding training, not just among chemists, but also transporters and first responders, who may face an overturned truck or a leaky drum.
Butylamine, or C4H11N, threads through industries and science labs, shaping products that reach shelves and fields. Following its formula reminds us that chemistry’s not just about theory. Each symbol carries real-life impact—on safety, health, and the world outside the lab. Looking at everyday chemicals this way, with knowledge guiding hands-on work, can boost trust and safety all around.
I’ve worked around chemicals for years, and butylamine stands out for its sharp odor and flammability. Picture a liquid that reacts pretty quickly when mistreated—leaks spread fumes, and if it gets exposed to heat or sparks, you might have an emergency. A poorly capped drum in the corner can quickly turn into a problem for the whole workplace. Anyone who has carried a dented container knows anxiety rises fast if you catch that whiff of ammonia while moving through a storage room.
Butylamine, with its low flash point and strong smell, shouldn’t be underestimated. Storing it alongside oxidizers or acids turns small mistakes into dangerous ones. Vapors from leakage can irritate eyes, skin, and lungs almost instantly. I've seen a new worker ignore a pinhole leak—no respirator, no gloves. Within minutes, she had to rinse her eyes. That kind of lesson stays with people.
Steel drums with a tight seal stand up to butylamine, but corrosion adds its own risks. Polyethylene is a better choice, since it won’t break down or react over time. Always make sure container tops actually fit, not just crammed on and left slightly ajar. Don’t rely on makeshift storage—paint cans or glass jugs easily break or get eaten by the chemical.
Don’t just grab any shelf space either. Locate containers in flame-resistant cabinets with plenty of ventilation, ideally with local exhaust. Wall posters sometimes claim it’s “just a small volume” so rules don’t matter, but after seeing one too many desks scorched by a splash fire, I don’t think shortcuts belong anywhere near butylamine. Store it away from acids, halogens, and chlorine bleach to cut down on risk if something leaks or spills.
Heat invites trouble. Even a stuffy storeroom with no direct sunlight can leave butylamine vaporizing into the air and building up in corners. An air conditioner, exhaust fans, and refrigerant units all help prevent fumes from getting out of hand. Storage rooms should hover just above freezing in winter and stay cool in summer, without reaching extremes. There’s wisdom in keeping temperature logs at chemical sites—if a fan breaks or a freezer fails, the problem doesn’t spiral out of control before anyone notices.
It’s easy to overlook safety gear if you’ve never had a scare, but basic gloves and goggles matter for every handoff or pour. Eye wash stations and spill kits should always be close by. Written protocols help, but habits matter most—no food or water in the same area, and don’t let butylamine sit out longer than a task requires.
Shipping and delivery become another choke point. Punctures can go unnoticed, so check labels and inspect every new container before moving them inside. If your team gets regular chemical safety training, problems shrink fast. Fear fades and experience grows. Local fire departments often share updates about storage rules, and partnering with them can keep you ahead of regulations. Compliance means real safety, not just checked boxes on an audit form.
Butylamine doesn’t show up on the average household shopping list—this chemical belongs in the laboratory or industrial setting. Folks working with it see the warnings right on the label: strong odor, flammable, and corrosive. In high school, our science teacher ran us through the basics—never trust a clear liquid based just on how it looks or smells. Butylamine is a reminder that transparent doesn’t mean harmless.
The first step always involves personal protection. My earliest experience with industrial chemicals came as a summer intern, standing uncomfortably in gloves that seemed oversized. That discomfort is a small price; skin absorbs butylamine so quickly you’ll regret skipping protection for even a minute. Nitrile gloves and splash goggles set the baseline. Add a face shield and lab coat if there’s any risk of a spill or splash. Smelling the sharp ammonia-like whiff isn’t a badge of honor—it’s a sign to check the ventilation.
For folks wearing contact lenses, it’s wise to swap them out for glasses on days with butylamine work. Contacts can trap vapors, which makes eye exposure far worse.
Even with gear in place, fumes linger. Proper ventilation makes all the difference. I’ve seen people try to “just crack a window,” but handling butylamine in a fume hood removes a lot of risk. Mechanical ventilation systems pull those vapors away from you and anyone else in the room.
Butylamine comes in bottles that demand double-checking. Storage can’t be a quick toss on any shelf. This chemical belongs in a secure, well-labeled container, far from oxidizers and acids. My mentor wouldn’t shut up about this rule, and for good reason—mixing accidental drips or vapors from the wrong bottles shapes disaster in no time.
If the chemical develops a leak or gets knocked over, immediate cleanup is non-negotiable. The ideal spill kit includes absorbent pads and neutralizing agents. Leaving a mess for someone else breaks trust within the team—and chemicals hold on to resentment.
Accidents still happen, despite layers of care. Splashes on skin require fast action: rinse under running water for at least 15 minutes, then head for medical evaluation. For splashes in the eyes—flush at the eyewash station for no less than 15 minutes, keeping eyes open. Inhalation makes breathing difficult in minutes, so anyone affected should step outside and seek help right away.
The most important lessons about working with butylamine—and any comparable chemical—get passed along by word of mouth and lived experience. Every lab orientation drills into the team that taking shortcuts opens the door to accidents. Every spill cleaned up swiftly cements those habits. Nothing replaces good training: it shows us how to react in a crisis and, more importantly, how to avoid one.
All these safety practices protect real people, not just checkboxes on a clipboard. Anyone new to butylamine will quickly see the value in suiting up, respecting the risks, and talking through every step with coworkers. It truly takes a team approach to keep the work going—and to keep everyone leaving the lab in better shape than they entered.
| Names | |
| Preferred IUPAC name | Butan-1-amine |
| Other names |
1-Butanamine n-Butylamine Butan-1-amine |
| Pronunciation | /ˈbjuːtɪl.əˌmiːn/ |
| Identifiers | |
| CAS Number | 109-73-9 |
| Beilstein Reference | 604080 |
| ChEBI | CHEBI:28838 |
| ChEMBL | CHEMBL509 |
| ChemSpider | 3796 |
| DrugBank | DB01953 |
| ECHA InfoCard | ECHA InfoCard: 100.003.234 |
| EC Number | 205-687-2 |
| Gmelin Reference | 6087 |
| KEGG | C01745 |
| MeSH | D002087 |
| PubChem CID | 8113 |
| RTECS number | EB5425000 |
| UNII | 6K5D0O971H |
| UN number | 1114 |
| Properties | |
| Chemical formula | C4H11N |
| Molar mass | 73.14 g/mol |
| Appearance | Colorless liquid |
| Odor | Ammonia-like |
| Density | 0.742 g/mL at 25 °C (lit.) |
| Solubility in water | Miscible |
| log P | 0.97 |
| Vapor pressure | 10 mmHg (20°C) |
| Acidity (pKa) | 10.8 |
| Basicity (pKb) | 3.3 |
| Magnetic susceptibility (χ) | -7.4×10^-6 cm³/mol |
| Refractive index (nD) | 1.385 |
| Viscosity | 0.59 mPa·s (at 20 °C) |
| Dipole moment | 1.15 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 274.8 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -62.4 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -3347.7 kJ/mol |
| Pharmacology | |
| ATC code | C01DX16 |
| Hazards | |
| GHS labelling | GHS02, GHS05, GHS06, GHS07 |
| Pictograms | GHS02,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H225, H302, H312, H314 |
| Precautionary statements | P210, P260, P280, P301+P330+P331, P303+P361+P353, P305+P351+P338, P311, P405, P501 |
| NFPA 704 (fire diamond) | 3-3-2-A |
| Flash point | -6 °C |
| Autoignition temperature | 340 °C |
| Explosive limits | 1.7% - 10.0% |
| Lethal dose or concentration | LD50 oral rat 366 mg/kg |
| LD50 (median dose) | LD50 (median dose) of Butylamine: 366 mg/kg (oral, rat) |
| NIOSH | KW4025000 |
| PEL (Permissible) | 5 ppm |
| REL (Recommended) | 5 ppm |
| IDLH (Immediate danger) | 340 ppm |
| Related compounds | |
| Related compounds |
Dimethylbutylamine Methylbutylamine Isobutylamine |
