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Interest in bromoacetates traces back to the late 1800s, as early chemists searched for versatile reactive intermediates for both lab and industrial syntheses. N-Propyl bromoacetate emerged from the push for improved selectivity in alkylation reactions, especially in the pharmaceutical and agrochemical spaces. Researchers began to refine production to reduce byproduct formation, tackle toxicity concerns, and meet growing market demand for cleaner intermediates. The methods used back then sometimes relied on crude distillation and rudimentary purification, but process engineers over the decades stepped up safety, yield, and product consistency. In my work, seeing how the sector evolved from almost artisanal batches to controlled manufacturing shows the impact of tenacity, especially in making chemicals that touch so many sectors.
N-Propyl bromoacetate stands out due to its role as an alkylating agent. Chemists reach for it to introduce propyl and carboxymethyl groups efficiently. You'll see it in organic synthesis, helping build molecules that end up as key parts of pharmaceuticals, specialty chemicals, and even crop protection agents. The structure—bearing a propyl chain esterified with bromoacetic acid—brings versatility and reactivity. Labs value it for work where you need solid selectivity during reactions. Bulk users in industry gravitate to it for process chemistry that calls for reliability and scalability.
N-Propyl bromoacetate appears as a clear to pale yellow liquid, with a faint, sometimes sweet odor. It weighs in at about 1.39 g/mL, and boils just above 200°C. The molecule’s reactivity owes a lot to its labile bromine atom. Hydrolysis produces propanol and bromoacetic acid, so it’s hydrosensitive, especially if exposed to moisture or wet reagents. It dissolves well in most organic solvents—from ether and benzene to alcohols—making it approachable for various reaction setups. Despite the utility, quick skin absorption and vapor inhalation risks mean closed systems and personal protective equipment become part of routine protocols.
Commercial N-Propyl bromoacetate comes labeled by purity percentile, usually ranged above 98%, with trace other bromoacetates as impurities. Sometimes, documentation details refractive index (around 1.46 at 20°C), density, and storage conditions. SDS paperwork accompanies every shipment, describing hazards—such as skin corrosion and acute inhalation toxicity. Labeling follows international norms, like the Globally Harmonized System, with pictograms for corrosive and hazardous substances, plus unique CAS and EC numbers. From handling bottles to shipping drums, all details work toward accountability and safety, as even small-lab spills can spark evacuation or contaminant worries.
The most widely used laboratory approach centers on reacting n-propyl alcohol with bromoacetic acid, under acidic conditions, often catalyzed by concentrated sulfuric acid. Water removal by distillation or azeotropic methods improves yield, since hydrolysis competes with esterification. In large-scale operations, some plants switch to using n-propyl bromide and sodium chloroacetate, capitalizing on more favorable reaction rates and cleaner separations. My experience in scale-up chemistry highlights that minor tweaks, like switching the order of reagent addition or monitoring pH during the workup, can swing yield and safety outcomes. Purification finishes with fractional distillation, as the boiling points of the product and byproducts need careful separation to avoid costly batch contamination.
Explorations in synthetic chemistry make frequent use of the molecule’s alpha-bromoester function. It alkylates amines, thiols, and active methylene groups, crucial in peptide coupling and the creation of complex heterocycles. Researchers develop new analogs with slight tweaks to the propyl chain or bromo position, seeking improved biological activity or lower toxicity. In some medicinal chemistry routes, bromoacetate esters create prodrugs or masks for reactive sites, delaying activation until conditions are just right—enhancing drug stability and targeting. My own attempts with similar bromoacetate esters have shown that strict temperature control and slow addition rates keep unwanted side reactions in check, especially if working with moisture- or heat-sensitive partners.
N-Propyl bromoacetate goes by several alternative names in catalogs and technical documents: 1-Bromomethyl-ethanoic acid propyl ester, bromoacetic acid n-propyl ester, and propyl 2-bromoacetate. Finding a product in a lab catalog sometimes means cross-checking CAS: 35223-80-4, as label updates can shift between full technical names and shorter synonyms. It’s sold by dozens of chemical suppliers under these varying aliases, meaning it’s key for chemists to verify both name and structure on shipments to stop mix-ups with isomeric or closely related bromoacetate esters.
Handling N-Propyl bromoacetate in the lab or plant means embracing robust safety habits. The compound causes irritation or burns to skin and eyes, and vapor can cause respiratory issues and dizziness. Spill kits, chemical fume hoods, gloves, and face shields become non-negotiable. In my own years working with acyl halides and similar esters, protocol drills and real-world spill simulations made clear that overconfidence or shortcuts risk more than just compliance tickets; they threaten personal and team well-being. Regulatory oversight by agencies like OSHA or EPA impose rigorous standards for ventilation, storage, and transport. Waste disposal involves neutralization and separation as halogenated organics, never simple drain disposal—emphasizing the blend of responsibility and liability that comes with such chemicals.
N-Propyl bromoacetate finds its way into pharmaceutical building block synthesis, especially for beta-lactam antibiotics and enzyme inhibitors. Agrochemical developers use it to build intermediates for herbicides and fungicides, crediting the ease with which they can introduce customized ester side chains. Polymer chemists exploit it for grafting functional groups in specialty materials, sometimes improving solubility or cross-linking abilities. In some peptide syntheses, its reactivity matches the need for mild but reliable alkylations, keeping sensitive biomolecules intact while building up complexity. From medicinal labs to industrial round-bottom flasks, users return to it for these distinct, reliable transformations.
Many R&D teams focus on greener synthesis—aiming to cut waste, avoid toxic byproducts, and boost atom economy. The push toward more sustainable catalytic processes follows industry-wide trends to lower energy usage and hazardous emissions. Recent publications report on recyclable solid-acid catalysts and enzymatic routes, hoping to push beyond age-old mineral acid strategies. I’ve seen start-ups scramble for intellectual property on new downstream uses of bromoacetates, exploring applications in diagnostics, specialty coatings, and even as initiators for smart polymer networks. While many innovations stay locked behind patents, the general trend lies in cleaner tech, higher-value derivative creation, and deeper collaboration between chemists and regulatory experts.
Toxicologists have flagged N-Propyl bromoacetate’s potential to cause both acute and chronic harm, sparking debate about long-term exposure, especially for industrial workers. Animal studies reveal hepatic and renal disturbances at high doses, raising questions about threshold limits in workplace air or accidental ingestion. Data indicates it acts as an alkylating agent, potentially causing DNA damage at uncontrolled concentrations. Regulatory bodies keep updating exposure guidelines, always erring toward tighter controls as new evidence arrives. Physicians and lab safety officers monitor blood and urine markers in exposed personnel, supporting strict adherence to health monitoring protocols. In my work with hazardous materials, even anecdotal reports of skin irritation or headaches prompt both immediate investigation and long-term tracking, keeping both institutional liability and personal safety in view.
Looking forward, the demand for platform molecules for fine chemicals and pharmaceuticals will sustain focus on bromoacetates, though regulatory pressures may force new synthetic approaches or even replacement by less toxic surrogates. Researchers keep searching for routes with better environmental performance, either by swapping hazardous bromine-based reagents for less persistent alternatives, or by switching to flow chemistry systems that offer safer, scalable, and more automated control. Some labs now integrate digital monitoring and AI to predict reaction outcomes and flag safety issues, turning legacy chemical processes into data-driven operations. As the green chemistry movement gathers pace, future generations of N-Propyl bromoacetate might come from fully renewable feedstocks, produced in plants with closed-loop waste handling and zero hazardous emissions—proving that innovation and responsibility can go hand in hand.
N-Propyl Bromoacetate holds its place in the world of organic chemistry. The formula for this molecule is C5H9BrO2. It’s not the flashiest of chemicals, not the stuff you see flashing across pharmaceutical billboards, but it does important work in labs and sometimes lands a spot in chemical syntheses you wouldn’t expect.
Let’s break down that formula. N-Propyl Bromoacetate takes two main parts — the bromoacetate group and a n-propyl group. Bromoacetate is made from acetic acid, where one hydrogen on the methyl group is replaced by a bromine atom, and the other hydrogen gets swapped for a propyl group. This swap turns the formula into C5H9BrO2, a molecule with five carbons, nine hydrogens, a single bromine, and two oxygen atoms.
This might seem like textbook trivia, but behind these numbers, a lot happens. Anyone who’s spent time in an organic lab knows that introducing a bromine like this ramps up reactivity for certain reactions. Bromine is bulky, electronegative, and grabs attention from chemists trying to push a reaction one notch higher.
Chemists expect precision. Mistaking C5H9BrO2 for another formula brings headaches — wrong compounds, failed syntheses, lost hours, wasted money. Personal experience shows the cost of confusion grows with scale, especially where grants, research deadlines, or product standards come into play. One batch with an off chemical throws a whole project sideways.
Beyond the lab, mistakes in chemical formulas have far-reaching consequences. Manufacturing with the wrong reagent leads to product recalls, side effects, liability nightmares, and sometimes, real harm. Reliable information on chemical structure shields users from these pitfalls.
N-Propyl Bromoacetate often steps in for alkylation or as a building block for more complex molecules. It gives chemists a controlled way to add a propyl group or use the bromine for further substitution. This process helps in crafting pharmaceuticals, fine chemicals, and sometimes even fragrances.
Sourcing this stuff means knowing your supplier lists the correct formula. Labs with established quality checks look for C5H9BrO2 and confirm it by spectrometry or NMR. That’s standard. Skipping these steps opens the door for mistakes — a lesson nearly every lab technician learns after encountering their first failed TLC plate or uncooperative NMR spectrum.
Most labs and suppliers rely on established chemical databases, but mistakes creep in. Buying from trusted manufacturers who share documentation and quality records cuts risk. Teams benefit from double-checking formulas, not assuming one staff member handles every detail. Digital record-keeping, audits, and ongoing education for lab techs all help catch mistakes before they become problems.
The chemical formula C5H9BrO2 for N-Propyl Bromoacetate is more than a string of letters and numbers. Behind it lies the daily reality of careful science — accuracy, diligence, and the small but serious cost of getting these things wrong. That’s where reputations are built and real-world impact happens, molecule by molecule.
There are few lab chemicals I’ve seen requested more on reaction lists than N-Propyl Bromoacetate. This compound, which shows up as a clear liquid with a sharp odor, isn’t what most people picture when thinking about innovation. You won’t find it on the shelves of high school science classrooms, but it quietly helps drive many cutting-edge projects across the globe.
The pharmaceutical industry always looks for building blocks that unlock new reactions, and N-Propyl Bromoacetate fits this mission. Its bromoacetate group reacts with a range of nucleophiles, making it popular for creating complex molecules, including drug candidates. In the hands of a researcher, its use in esterification or alkylation paves the way for active pharmaceutical ingredients. Pain relievers, antibiotics, and even antivirals can trace part of their long manufacturing journey back to intermediates like this one.
One of my former colleagues used N-Propyl Bromoacetate while working on small-molecule cancer therapeutics. The ability of its bromo group to act as a leaving group opened up pathways for synthesizing novel heterocycles—scaffolds that form the core of several promising drug classes.
Beyond drug discovery, specialty chemical labs use this chemical for crafting flavors, fragrances, and dyes. It serves as an acylating and alkylating agent, two functions needed in the fine-tuning of products to achieve certain scents or colors. This compound’s manageable reactivity gives chemists control without excessive safety risks, making it a staple in the scale-up stage of production.
Several food science researchers I’ve spoken with have relied on N-Propyl Bromoacetate in the pilot plant. By introducing various esters into formulas, they discovered ways to mimic ripe fruit notes or create subtle vanilla backdrops, especially in processed foods. Even tiny changes in molecular structure due to this compound can make a world of difference for a customer’s sensory experience.
In the realm of polymers and coatings, this chemical brings out new features in plastics or resins. Its dual functionality—thanks to both the ester and bromo groups—allows researchers to tailor-make monomers for specific performance improvements. From water repellency to added strength, the right starting materials, including N-Propyl Bromoacetate, support next-generation materials for aerospace, automotive, and electronics.
I’ve seen teams push the limits of thermal stability in circuit board coatings by using modifications accessible through this very intermediate. Electrical engineers care about more than just conductivity; the right protective film means longer device lifespans, even in harsh environments.
Green chemistry advocates seek to minimize waste and improve reaction efficiency. N-Propyl Bromoacetate’s reactive profile supports milder reaction conditions and fewer unwanted byproducts. This shift is key for reducing environmental impacts and keeping manufacturing costs in check.
I’ve witnessed this compound do the heavy lifting in contract research settings, where customers often have unique, proprietary requests. Chemists value flexible reagents, since clients tend to bring highly specific needs. Here, N-Propyl Bromoacetate stands out, combining compatibility with a wide variety of synthetic pathways and reliability batch after batch.
Of course, one shouldn’t overstate safety: handling organic bromides calls for ventilation, gloves, and protective eyewear. Mishandling can lead to irritation or more serious consequences. The best labs reinforce safety protocols and track every drop, knowing the value and risks this chemical brings.
From medicine to materials to consumer products, N-Propyl Bromoacetate remains a backbone of modern chemical research and manufacturing. Its range of applications, coupled with decades of proven success, make it an example of effective and essential chemical design.
N-Propyl Bromoacetate shows up in a bunch of chemical syntheses, especially in pharmaceuticals and research labs. It’s clear, usually a pale liquid and it packs a pungent, harsh smell. Anyone who's spilled just a few drops learns fast that this is one chemical you don’t want leaking out in the open. Even brief exposure reminds folks that safety comes ahead of cutting corners.
This material thrives in a dry, well-ventilated spot with a tight-fitting cap. Never store it near heat sources or open flames—its vapors catch fire easily. Leaving it on an open shelf near direct sunlight or a radiator courts disaster. The shelf-life holds strong at lower temperatures, so an explosion-proof refrigerator works best for small bottles.
Avoid storing it near acids, bases, or strong oxidizers. These react with N-Propyl Bromoacetate and can spark dangerous byproducts. Metal shelving stands up better than old wood in case of leaks. The container should always be airtight; humidity speeds up breakdown and builds up pressure inside the bottle, turning it into a ticking hazard.
Proper handling starts long before the pour. Safety goggles and gloves aren’t optional; they stop splashes that can burn eyes or irritate skin. Even a whiff of the vapors leads to headaches or worse. Chemical hoods provide clean air and confine fumes. Never pipette this stuff by mouth. The seasoned lab techs know: accidents wait for nobody.
Label every bottle, even temporary containers. Unlabeled chemicals sow confusion and pile up risks. Spill cleanup kits need to sit nearby, stocked with absorbent pads and neutralizing agents. Cleaning spills with bare hands or rags spreads contamination fast. If something goes wrong, a shower and eyewash stay within arm’s reach.
A strong safety culture grows from stories of things that went sideways. Labs that skip steps because “it’s just a quick reaction” tend to see emergency room visits rise. According to data from the U.S. Chemical Safety Board, improper storage or casual handling causes a big chunk of lab injuries. It only takes one mistake for bromoacetate vapors to fill a cramped room and trigger a full-scale evacuation.
Anyone managing a storeroom or lab sits in a position of trust. PPE is just as crucial as keeping the area tidy and supplies organized. Inspections—both self-checks and formal audits—catch corroded caps or forgotten bottles before they become major headaches. Regular training, including refreshers for veterans and clear instructions for newcomers, makes a difference. Folks in the trenches often spot the gaps that managers miss.
I’ve seen good habits pay off. A colleague walked into our lab one morning, spotted condensation on a rarely-used container, and called for a check. Turns out, the bottle had cracked. Because we’d kept it isolated on a spill tray and followed storage rules, clean-up ran smooth. Had it been shoved under a bench or between other chemicals, the story might have ended with alarms blaring.
Ultimately, working with N-Propyl Bromoacetate brings no shortcuts: store it cool and dry, handle it with respect, keep gear handy, and train everybody who comes near. Small steps keep people and property safe, day in and day out.
N-Propyl Bromoacetate doesn’t get talked about much outside lab circles, but those who’ve spent time in a chemistry lab know it comes with a reputation. The chemical brings a biting odor and can cause irritation almost immediately. Touching this substance or breathing in its vapor may lead to headaches, dizziness, eye irritation, and problems with the respiratory tract. Even a bit on the skin may cause redness or blistering. Anyone who has accidentally splashed it on themselves learns fast to respect the stuff.
The real worry with N-Propyl Bromoacetate goes beyond minor irritations. Prolonged or repeated exposure has a track record for harming the nervous system. Inhaling larger amounts can bring nausea, confusion, or worse. Aside from health concerns, this chemical mixes poorly with fire: It catches flame and burns quickly, giving off toxic fumes as it does so. That’s a risk, especially in settings without good ventilation or slick emergency plans.
Researchers, chemical plant workers, and people in pharmaceutical industries come across N-Propyl Bromoacetate the most. My own time in a university lab showed me the everyday risk. I remembered new graduate students nervously donning gloves, double-checking goggles, and pausing before opening the bottle. Experienced chemists always double-checked that the fume hoods worked and made sure not to leave any open containers out. There’s very little margin for error when breathing the vapors can disrupt your whole shift—or worse, send you to the hospital.
Talking about lab safety isn’t just for show; real injuries happen when corners get cut. Anyone using N-Propyl Bromoacetate learns quick habits that become second nature. The best defense comes from working inside a fume hood. This pulls away vapors before they reach your face and keeps everything contained. Wearing gloves made of nitrile or butyl rubber protects the skin. People often double up if they know they’re dealing with larger volumes or spills. Eye shields and lab coats add extra defense if a bottle gets knocked over or a reaction splashes.
Storage matters just as much as handling. Keeping the chemical in a tightly sealed container, stored in a cool spot away from direct sunlight or sources of ignition, cuts down the risk of fire. A locked cabinet marked with warning signs stops someone from accidentally grabbing the wrong bottle. Regular checks for cracked lids or crusty residue go a long way.
No matter how careful, things sometimes go wrong. Having an eye wash station and emergency shower close by keeps panic to a minimum during an accident. Quick training for spill response saves a lot of trouble—a box of absorbent material nearby, neutralizing agents handy, and clear instructions for disposal make all the difference. In labs I’ve worked in, every spill—no matter how small—got logged and reviewed. That’s how you catch patterns and keep folks honest about risks.
Good ventilation, solid personal protective equipment, and clear protocols keep danger at bay. Open dialogue, regular drills, and honest risk assessment make environments safer for people and better for business. N-Propyl Bromoacetate’s risks can’t disappear, but strong habits and a culture of looking out for colleagues goes a long way.
N-Propyl bromoacetate finds plenty of use in organic synthesis. If you've ever stepped foot in a chemistry lab, you know that product quality matters more than flashy marketing claims. Chemists face headaches when a reagent skips out on purity standards. Most researchers and industrial users count on a purity level around 97-99%. Anything below that shoots reliability out the window—unwanted byproducts creep in, and reaction yields tumble.
A batch with 99% purity allows for predictable outcomes. Synthetic chemists and production managers depend on reliable figures here, especially during scale-up work where even a small impurity can cost weeks of effort. My own years working with intermediates like this taught me to double-check those purity sheets. Labs that cut corners to shave off a few bucks never do anyone any favors. Distributors know that too. Many reputable suppliers publish analytical methods like NMR, HPLC, and GC-MS data to back their claims, giving buyers solid ground for trust. A Certificate of Analysis (COA) should always come with the purchase, showing both the percentage and testing methods for peace of mind.
Packaging for N-Propyl bromoacetate comes in more than just the basic plastic bottle. Small-scale lab researchers looking to run test reactions grab bottles as small as 25 grams or 100 grams. I’ve done plenty of rookie mistakes by guessing at my reagent quantities—no one likes cracking open a kilo bottle when all they need is a scoop.
Production facilities have different needs altogether. Larger drums—1 kilogram, 5 kilogram, or even 25 kilogram containers—are routine for industrial users. Moving these quantities means regulations and safe handling step into the spotlight. Chemical stability isn’t just theory here; the wrong cap or container can ruin a lot of material in a hurry. Glass bottles, amber jars, or HDPE drums usually shield sensitive compounds from light and moisture. Some vendors even use sealed ampoules for ultra-sensitive applications, though they’re less common with larger volumes.
Getting sloppy on purity costs both time and money. Unwanted materials trigger new side reactions, bump toxicology concerns, and force clean-up processes that no staff member enjoys. I learned to ask for testing specifications in the early days, even before any order got placed. Once during my time at a pharmaceutical startup, a 98% batch tripped up our lead synthesis and we spent a week chasing shadows before finding a contaminant linked back to the extra 2%. It’s a lesson that sticks.
Transparent supply chains help address these worries. Bulk buyers sometimes request customized container sizes, or extra packaging layers, to match their handling systems. Some even opt for powder or solution formats for uniform metering. While purity stands front and center, packaging shapes day-to-day workflows—every missed step leads to frustration, waste, and more phone calls with the supplier.
Getting the right purity and packaging isn’t just about ticking boxes on a form. Ask for recent test data. Talk to suppliers about procedures they use for storage and shipping. Labeling must include both batch and purity, and fragility warnings are a must with reactive chemicals like N-Propyl bromoacetate. Keeping these basics in mind pays off, as anyone who’s had to answer for unplanned lab downtime can confirm.
| Names | |
| Preferred IUPAC name | Propyl 2-bromoacetate |
| Other names |
Propyl bromoacetate Bromoacetic acid n-propyl ester n-Propyl 2-bromoacetate |
| Pronunciation | /ɛn-ˈproʊpɪl ˌbroʊmoʊəˈsiːteɪt/ |
| Identifiers | |
| CAS Number | 35223-80-4 |
| Beilstein Reference | **87875** |
| ChEBI | CHEBI:51679 |
| ChEMBL | CHEMBL4194877 |
| ChemSpider | 68023 |
| DrugBank | DB03860 |
| ECHA InfoCard | ECHA InfoCard: 100.009.789 |
| EC Number | 211-733-8 |
| Gmelin Reference | 22850 |
| KEGG | C18637 |
| MeSH | D017927 |
| PubChem CID | 12315 |
| RTECS number | UF3850000 |
| UNII | U12Y4M7TQZ |
| UN number | UN2345 |
| CompTox Dashboard (EPA) | DTXSID9020392 |
| Properties | |
| Chemical formula | C5H9BrO2 |
| Molar mass | 167.04 g/mol |
| Appearance | Colorless to light yellow liquid |
| Odor | pleasant, fruity |
| Density | 1.421 g/cm³ |
| Solubility in water | Slightly soluble |
| log P | 0.9 |
| Vapor pressure | 0.3 mmHg (20°C) |
| Acidity (pKa) | 25.5 |
| Basicity (pKb) | pKb = 11.0 |
| Magnetic susceptibility (χ) | -7.03 × 10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.4480 |
| Viscosity | 1.733 mPa·s (20 °C) |
| Dipole moment | 2.20 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 373.6 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -117.0 kJ/mol |
| Hazards | |
| Main hazards | Harmful if swallowed, causes skin and serious eye irritation, may cause respiratory irritation. |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H302, H312, H315, H319, H332, H335 |
| Precautionary statements | P210, P261, P280, P301+P312, P305+P351+P338 |
| NFPA 704 (fire diamond) | 2-2-2-W |
| Flash point | 85 °C |
| Autoignition temperature | 335°C |
| Lethal dose or concentration | LD50 (oral, rat): 950 mg/kg |
| LD50 (median dose) | LD50 (median dose): 1,542 mg/kg (rat, oral) |
| NIOSH | PB6300000 |
| PEL (Permissible) | Not established |
| REL (Recommended) | 2-8°C |
| Related compounds | |
| Related compounds |
Isopropyl bromoacetate Ethyl bromoacetate Methyl bromoacetate tert-Butyl bromoacetate n-Butyl bromoacetate Bromoacetic acid |
