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Chemists first recognized the potential of 4-Isobutylacetophenone in the early 20th century. Interest in aromatic ketones grew quickly, especially when pharmaceutical research began relying on small-molecule intermediates. The compound’s structure allowed for straightforward modifications, fueling its adoption across sectors from perfumery to agrochemicals. The discovery period gave way to more optimized preparation methods during the 1950s, as chemical engineers developed safer, higher-yielding syntheses. Over time, improvements in crystallization techniques pushed its accessibility forward. Researchers eventually realized that customizing the isobutyl fragment on this acetophenone core led to new properties in downstream applications, setting the stage for many modern uses.
4-Isobutylacetophenone carries the molecular formula C12H16O, featuring a phenyl ring attached to a ketone group with an isobutyl side chain. On the consumer-facing side, this compound sometimes arises as a key flavoring or fragrance ingredient, though its main usage occurs as an intermediate in synthesis pipelines. Manufacturers value its solid-state stability and moderate volatility, which make both storage and transport relatively simple. Quality standards often demand robust chromatographic analysis to ensure purity above 98 percent, since downstream reactions in pharmaceuticals leave little room for error. Chemists handling this compound look for well-documented batch consistency, as even slight impurities affect both odor and reactivity.
4-Isobutylacetophenone’s white crystalline appearance gives away its aromatic backbone but not its subtle differentiations from similar ketones. Melting point usually ranges around 37 to 39°C, which makes it manageable in standard laboratory environments. Its boiling point hovers near 295°C, so distillation uses do not always make sense, especially compared to easier separation methods. This compound dissolves freely in most organic solvents, including ethanol, ether, and chloroform, but water solubility stays low. Its slight, sweet scent highlights its presence in select perfumes, though only at low concentrations. The molecule stands up well to room air, as it does not oxidize or polymerize easily, but extended ultraviolet light exposure eventually leads to discoloration and mild degradation.
Suppliers usually provide specifications detailing assay, melting range, moisture content, and specific gravity. GC-MS traces enable buyers to spot potential co-eluting impurities or structural isomers. In my experience, labels that clearly show CAS number, UN transport code, and batch number do the most to improve traceability. Strict adherence to international transport standards—like UN 2811 for toxic solids—matters most during shipping, especially across borders where customs officers can probe every manifest. This attention to technical data includes details about lot-to-lot variability and expiration recommendations, which help downstream chemists manage their own regulatory filings.
Manufacturing 4-Isobutylacetophenone typically relies on a Friedel-Crafts acylation, using isobutylbenzene and acetyl chloride as starting materials in the presence of a Lewis acid catalyst such as aluminum chloride. The process benefits from easy scalability and delivers consistent yields when reaction temperature and stoichiometry are controlled tightly. Post-reaction, aqueous work-up removes acidic byproducts and side products like isobutyltoluenes. Modern protocols shift towards greener solvents, emphasizing minimal waste and catalyst recovery. Although older routes sometimes called for chromium-based oxidations or high-pressure techniques, most plants today avoid those steps due to environmental and safety constraints.
The isobutylacetophenone core offers a useful handle for synthetic chemists. Reduction of the ketone creates secondary alcohols, which often serve as perfumery intermediates. Halogenation along the aromatic ring or isobutyl side chain delivers new building blocks for agrochemical agents. Nitration or sulfonation push the molecule towards pharmaceuticals or dye precursors. I’ve seen research groups explore cross-coupling reactions, using the isobutyl motif to introduce steric bulk into catalysts or polymers. The compound’s reliable behavior during most acid- and base-catalyzed transformations has made it a staple in advanced organic synthesis, especially where site-selectivity counts.
Besides 4-Isobutylacetophenone, chemical catalogs sometimes list this compound as p-Isobutylacetophenone or 1-(4-Isobutylphenyl)ethanone. Some older European and Japanese references use names like p-Isobutylaceto-phenone or 4-(2-Methylpropyl)acetophenone. In regulatory filings, the CAS number 7736-99-8 stays consistent and offers the most reliable means of identifying the substance, especially when comparing across international suppliers with slightly different language conventions.
Every handler of 4-Isobutylacetophenone should respect its moderate toxicity profile. While not acutely dangerous under brief exposure, repeated skin contact can cause dryness or irritation, and inhaling dust should be avoided. Labs always enforce standard PPE—nitrile gloves, goggles, disposable lab coats—and work in ventilated hoods. Industrial users set up local exhaust ventilation around material transfer points. The compound must stay away from open flames and strong oxidizers; its flash point, above 110°C, offers some leeway, but accidents still occur on poorly managed sites. Safety Data Sheets warn about chronic exposure, and responsible facilities maintain spill control kits with absorbent materials rated for aromatic solvents. Waste streams follow regulatory disposal routes, usually incineration, which reduces risk of improper landfill contamination. Companies often audit their suppliers for compliance with both REACH and OSHA standards before purchase.
Pharmaceutical manufacturing grabs the largest commercial share of 4-Isobutylacetophenone. As a key intermediate in producing non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, its demand tracks global pain medication consumption. Some fragrance houses also blend it as a fixative for floral, spicy, or musky notes, though this market remains small. Agrochemical companies have explored its derivatives as possible herbicide and pesticide precursors, seeking new modes of plant growth control. Academic chemical research uses it as a test molecule for organic synthesis pedagogy and as a model substrate in catalysis studies. Each of these applications leans heavily on reliable quality and crystal structure consistency, since minor impurities skew both reactivity and olfactory impact.
Research teams worldwide continue to investigate derivatives of 4-Isobutylacetophenone, nudged by rising demand for new pharmaceuticals and specialty chemicals. Labs develop more sustainable preparation routes, aiming to replace traditional Lewis acids with recyclable alternatives or enzyme-based catalysts. Analytical chemists design advanced methods to distinguish isomers in trace analysis, helping enforce strict substance controls in medical and environmental testing. Chemoinformatics approaches search for links between molecular tweaks and biological activity, screening derivatives for anti-inflammatory, antimicrobial, or even anticancer properties. University groups have integrated this molecule into advanced lab courses, teaching structure-property relationships and the art of multi-step organic synthesis. Some collaborative projects look far beyond pharma, wondering how its unique aromatic-ketone motif might influence fields from materials science to bioconjugate chemistry.
Toxicological studies have built a solid profile for 4-Isobutylacetophenone. Testing in animal models shows low acute toxicity via oral, dermal, and inhalation routes, but longer exposures produce mild liver enzyme changes. It does not consistently trigger mutagenic or carcinogenic responses, though workplace limits still err on the side of caution. Environmental fate studies indicate moderate persistence in soils, with potential for breakdown via microbial action. Wastewater analysis from pharmaceutical plants sometimes turns up low-concentration residues, pushing regulatory agencies to demand better containment. Independent labs measure how metabolic pathways in model organisms handle this aromatic ketone, seeking out any reactive intermediates that might upset endocrine activity or normal cell functions. Tighter toxicity monitoring underpins much of the regulatory oversight seen in both Europe and North America, where even seemingly safe compounds face continual reassessment as scientific understanding advances.
Interest in 4-Isobutylacetophenone won’t fade soon, as global medicine demand keeps pushing up intermediate needs. Innovations in green chemistry suggest cleaner, faster, and less expensive synthesis may arrive within a decade, reducing both environmental impact and cost. Scientists develop tailored derivatives, searching for better painkillers, antiviral agents, and even new insecticides with improved selectivity and safety. Digital tools, including machine learning, drive rapid exploration of molecular modifications, predicting which analogues offer fresh opportunity. Collaborative, cross-border chemical safety regulations continue to evolve, and with greater transparency, companies aim to limit environmental leaks and worker exposures. The real future of this compound may lie less in scale and more in specialization, as new findings about its chemical versatility unlock doors to applications still over the horizon.
Many chemicals do important work behind the scenes, and 4-Isobutylacetophenone fits that bill. This compound might not appear in everyday conversations, but its impact shows up in a range of industries — from pharmaceuticals to fragrances. I come across questions about chemicals like this quite a bit, especially in discussions about how science shapes modern life. There’s a reason researchers and manufacturers keep coming back to this substance.
First off, the fragrance business uses 4-Isobutylacetophenone as a building block for scents. It delivers a warm, slightly woody smell that blends well with other ingredients, which helps in making perfumes, soaps, and cosmetics. You might notice similar notes in skincare products or even certain detergents, though the label probably won’t spell out the individual chemicals involved.
What makes it useful for scents touches on something broader — the science of how smells influence mood and memories. Fragrance developers often rely on niche chemicals to create new blends or mimic natural aromas, and 4-Isobutylacetophenone offers versatility for that work. Consumers feel the end result in daily routines, from their morning shower gel to the aftershave they pick for special occasions.
Beyond perfumes, this compound serves as an intermediate in drug manufacturing. “Intermediate” sounds technical, but it just means a useful step on the way to making something else. Pharmaceutical labs often start with molecules like 4-Isobutylacetophenone because they allow for easier chemical modifications.
An example from my own conversations with researchers — some types of nonsteroidal anti-inflammatory drugs (NSAIDs) rely on this or similar molecules during their creation. The fact that a starting material can help make medicines that ease pain or reduce inflammation underscores the indirect paths chemicals follow before reaching the pharmacy shelf.
Safety matters. In the world outside the lab, few folks realize chemicals carry risks if mishandled. Even something used for perfume creation, including 4-Isobutylacetophenone, gets careful consideration for storage, disposal, and environmental impact. Regulations in many places enforce those standards — sometimes the rules frustrate small businesses, but public health depends on them.
From what I’ve seen, producers who take health and safety seriously not only gain customer trust but also avoid costly mistakes. Training for workers, proper labeling, and up-to-date records all play a role. For example, the European Chemicals Agency lists detailed guidance on chemicals like this to make sure that anyone handling or transporting them does so safely.
One issue that keeps popping up is a gap between scientific knowledge and everyday understanding. Most people interact with dozens of chemicals every day, often without knowing what’s inside a bottle or why that ingredient got picked. If more companies transparently share what they use and why, consumers could make better-informed choices.
There’s also ongoing research into greener methods for making and processing chemicals like 4-Isobutylacetophenone. Industry leaders see the future in methods that limit waste and use safer raw materials. Adoption takes time and resources, but success in these efforts could improve both workplace conditions and the environment over time.
The uses of 4-Isobutylacetophenone remind me how everyday goods are more complex than they seem. Whether working as a stepping stone in drug labs or shaping the scent in soap, this compound is another example of science at work in daily life. Better education, safer handling, and ongoing innovation will shape how consumers and industries continue to rely on ingredients like these.
4-Isobutylacetophenone doesn’t come up much in daily conversation, unless you spend time in a chemistry lab or have a knack for diving deep into organic structures. It sounds complicated, but the molecule reveals a lot to anyone willing to stare at its pieces. Chemists break down a name like this almost automatically: take acetophenone, add an isobutyl group in the fourth position on the benzene ring, and there’s the core of the puzzle.
Acetophenone itself stands as C8H8O, which already packs a punch in organic synthesis and the fragrance world. Adding an isobutyl chain (C4H9) at the 4-position shakes up those numbers. That’s how the molecule builds to its formula: C12H16O.
If you’ve worked in a laboratory or taken organic chemistry, you learn these numbers fast. They matter for mixing, measuring, and matching. The formula gives away not just how many carbon or hydrogen atoms stick together, but clues to how the substance reacts, smells, or dissolves in a beaker. In real life, knowing something’s formula cuts down on guesswork—no one wants to stand over a hot plate scratching their head about why a mixture didn’t react as planned.
Looking at C12H16O tells a lab tech right away what solvents make sense, what surface or container could work, or even whether a pinch more caution helps in case the compound’s flammable. Without this, nobody’s safe from wasted chemicals or unfortunate lab accidents.
The presence of isobutylacetophenone in the lab isn’t pure curiosity. Its chemical backbone links to the building of bigger molecules—think of medicine, scents in soap, sometimes even food additives (though not this one in your dinner). Synthesizing precise molecules relies on exact formulas. If the numbers are wrong by just a bit, the resulting compound could irritate sensitive skin or react in unplanned ways.
Learning the right formula, remembering how to dissect chemical names, these skills end up serving industries way beyond research benches. Pharmaceutical chemists and engineers have to prove what’s in their mixtures before a product sees the market. Chemical safety data sheets, required by regulation, get their backbone from formulas like this. One missed carbon or hydrogen can put a whole operation under review.
Experience tells me students trip up most often when they try to cut corners on naming or forget the chain attachment spots. Honest mistakes turn dangerous when precision falls by the wayside. The trick should always be double-checking the old way: pen on paper, examining structure by structure, carbon by carbon, counting each hydrogen one more time than feels comfortable.
Laboratories could do more to make chemical structure knowledge a big deal at every level. Regular training, easy-to-use digital models, and clear signage in any lab help new workers keep their eyes open. Even old hands sometimes mix up similar names, so building a culture of checking one another instead of just trusting the label makes everyone’s process smoother.
Science teachers help when they show how formulas link to function instead of just having students memorize and move along. After all, knowing the formula C12H16O means knowing much more than just the weight—it means controlling risk, making better products, and running a safer, smarter lab.
4-Isobutylacetophenone pops up as a specialty chemical. Its structure, containing an acetophenone backbone with an isobutyl group, gets attention in both research and some industrial processes. The name might not roll off the tongue, but anyone handling this substance in a lab or factory should care about safety and health impacts for good reason.
Digging into toxicology references and published safety data sheets, 4-Isobutylacetophenone isn’t tagged with the same red flags as some notorious chemicals. It doesn’t grab headlines for being acutely toxic or highly flammable. That offers some basic reassurance, but it doesn’t mean people can toss basic precautions out the window. The chemical can irritate eyes, skin, and the respiratory system. Spills and vapor inhalation both raise concerns. If splashed in the eye or inhaled as dust or vapor, irritation comes up quickly.
Repeated exposure hasn’t been studied fully in humans. Most available toxicology comes from animal models and laboratory analysis. The general trend points toward low acute toxicity; that said, there’s not enough evidence to rule out chronic health effects after long-term use. Any chemical that can irritate or cause inflammation calls for gloves, goggles, and proper ventilation. Overconfidence turns small mistakes into problems fast.
Experience in academic chemistry labs drilled one lesson: substances without a “highly toxic” warning can still pose risks, especially if no one checks ventilation or skips skin protection. Take ketones as a class; some are fairly mild, others cause headaches or skin burns. 4-Isobutylacetophenone doesn’t pack the harsh punch of something like acetone or methyl ethyl ketone, but it shouldn’t be underestimated. A minor skin rash today becomes a bigger concern if contact continues day after day.
Disposal and environmental impact deserve a close look. The chemical lingers if tossed down drains or leaches into soil. Persistence leads to buildup over years. Data suggest it doesn’t break down quickly in water and may pose a risk to aquatic life. Environmental agencies push for proper disposal in controlled facilities, not down the drain with everyday cleaners. Industry regulations push for capture and treatment.
Anyone using or producing this chemical at scale must keep an eye on waste management. Even if it’s not overtly dangerous to people, ecosystems pay the price if chemicals like this enter rivers, lakes, or wastewater plants. This is the reason manufacturers track discharges and train workers. A culture of prevention trumps cleanup after a spill.
People working with 4-isobutylacetophenone need a solid approach. Use fume hoods. Wear gloves and eye protection. Avoid contact with skin or eyes and don’t breathe in dust or vapor. Follow local hazardous waste rules for disposal. Basic respect for chemicals goes a long way in workplaces and labs. Ignoring guidelines rarely ends well, as incidents from chemical exposures have proven for generations.
For those outside industry, this isn’t a chemical showing up in everyday household products. The risk sits mainly with researchers, chemical workers, and plant operators. Approaching it with the tools and protocols set by occupational safety groups keeps risks in check. A little training and vigilance beat injury or regulatory fines any day.
4-Isobutylacetophenone stands as one of those specialty chemicals you’d expect to see in both labs and industrial production. It shows up in the fragrance world, also in research. Many don’t pay close attention to the daily life of such compounds. Still, storing this chemical the wrong way can throw off its quality, put people at risk, and set back projects. With a little respect for the stuff and some straight-up practical steps, folks can avoid some headaches.
I’ve seen storerooms where bottles end up next to radiators, under sunlight, in fridges that tend to freeze or thaw every time the door swings open. You want consistency above all. 4-Isobutylacetophenone prefers a place that stays cool, away from sunlight. Now, “cool” means something stable—usual room temperature, somewhere between 15–25°C, not out in the warehouse where heatwaves or freezing spells make surprises. Jumping between hot and cold in storage isn’t only bad for the compound but for the container as well, making leaks or cracks more likely over time.
This isn’t a chemical that takes kindly to moisture. Any humidity creeping in sets off slow reactions many can’t see until the bottle comes out and the material isn’t quite what was expected. You want tight-sealing containers. Glass wins almost every time—polyethylene and some plastics work if they’re strong enough not to react. Screw-top lids with liners or even ground glass stoppers do right by the material. I’ve learned not to trust push-on caps after a few surprises in the back cupboard; the air finds its way in, and things change.
Here’s where a lot of labs and shops fudge things: chemicals shouldn’t sit together just because it seems convenient. 4-Isobutylacetophenone does best away from oxidizing agents and acids. If a bottle of bleach leaks onto the same shelf, you’ve got a mess no one wants to clean up. It pays off to check safety data and arrange shelves with those differences in mind. For small spaces, even a plastic tub or secondary container sets a barrier against spills mixing together.
A clear label sounds obvious until you’ve seen peeled-off stickers or faded ink that leaves everyone guessing. Legible, waterproof labels that cover name, date received, and hazard class go a long way. More important, keep logs—not for bureaucracy, but to track opening dates so old material doesn’t sneak its way into a new batch. From my own time in research, old 4-Isobutylacetophenone can lose its scent, yellow over time, or pick up off-odors. Good records catch that before it hits production.
I’ve had students store chemicals too close to busy walkways or where food was around. Those mistakes sound small until something tips or cross-contaminates. A quick safety audit every few months points out weak spots. Relabel faded bottles. Check that nothing’s leaking or swelling—it happens more with age. With chemicals, an ounce of prevention really does make life easier. Even installing a simple temperature logger and humidity card keeps storage in line, so surprises stay out of the workflow. If a bottle looks odd or the contents don’t match expectations, call it out and dispose according to hazardous waste rules.
Getting storage right doesn’t ask much—just basic respect for the properties of 4-Isobutylacetophenone and a willingness to enforce simple habits. Big spills and batch failures usually trace back to storage corners that got ignored once too often. With attention to temperature, dryness, and separation, most risks shrink fast. It’s these small, regular steps that keep people safe and projects moving forward, without the setbacks that come from treating chemicals as afterthoughts.
People ask about where to buy 4-isobutylacetophenone for many reasons. It’s not a household item. This chemical pops up in fragrance production and in research. Some folks working in flavor labs or with niche syntheses often need it to run specific projects. If you aren’t working in those fields, you might be surprised how careful you have to be with sourcing. Buying chemicals like this differs a lot from picking up bleach or glue at the store.
Every time someone looks for a substance like 4-isobutylacetophenone, they bump into the challenge of vendor reliability. Decent suppliers don’t just show up on the first page of search results. Chemical houses such as Sigma-Aldrich, TCI, and Alfa Aesar carry it, but they run tight checks on buyers, especially folks with no scientific track record. I’ve gone through background checks myself, and you’d never think ordering a small bottle for lab work could involve emails, licenses, and lots of wait time. These hurdles exist because of safety, liability, and legal requirements. Not all chemicals are controlled, but distributors always pay attention to what buyers might do with their products.
Buying 4-isobutylacetophenone brings up questions about state and federal rules. Laws shift from country to country, with the U.S. having more hoops to jump through than many places. I remember talking shop with a university chemist, who explained how paperwork sometimes grinds his research to a halt. In Europe, REACH regulations also shape how labs access substances, with digital tracking and detailed justifications in tow. Part of this is to catch any environmental or safety issues before they hit the public.
People sometimes want to buy specialty chemicals for home science. Here’s where it can get risky. The moment you search for this online, especially without credentials, you may end up scrolling through less-reputable sites or listings from overseas. That path leads to questions about quality and legal standing. Unmarked or mislabeled containers can mean health and legal trouble. Black-market chemical sales have fueled problems that go far beyond hobbyists. Stories hit the news about garage 'labs' causing fires, injuries, and pollution. This draws more scrutiny from regulators, making things even tougher for legitimate researchers.
Folks needing 4-isobutylacetophenone for real projects get the best results by contacting recognized, accredited chemical suppliers. The process involves providing ID, proof of institutional affiliation, and sometimes extra paperwork spelling out the planned use. People outside academic or industrial settings will run into more roadblocks, which protects society as a whole from accidents and illegal activity. Transparency and safety come before anything else.
Staying informed helps a lot. Organizations like the American Chemical Society and similar bodies in other countries explain sourcing and handling rules in plain language. For those who only need 4-isobutylacetophenone out of curiosity or for creative work, the right step is reaching out to scientists or industry professionals. Building trust with reputable suppliers and regulatory bodies often opens doors for future honest work, even if it means waiting and learning for a while.
| Names | |
| Preferred IUPAC name | 1-(4-(2-Methylpropyl)phenyl)ethan-1-one |
| Pronunciation | /ˌfɔːr aɪˌsoʊˌbjuːtɪl æsɪˈtɒfəˌnoʊn/ |
| Identifiers | |
| CAS Number | [5402-55-1] |
| Beilstein Reference | 0957034 |
| ChEBI | CHEBI:78080 |
| ChEMBL | CHEMBL147871 |
| ChemSpider | 30372 |
| DrugBank | DB08797 |
| ECHA InfoCard | 100.141.748 |
| EC Number | 211-714-8 |
| Gmelin Reference | 141944 |
| KEGG | C08075 |
| MeSH | D000072511 |
| PubChem CID | 75342 |
| RTECS number | AM2100000 |
| UNII | N8I3E14V1E |
| UN number | UN1993 |
| CompTox Dashboard (EPA) | DTXSID6020342 |
| Properties | |
| Chemical formula | C12H16O |
| Molar mass | 177.26 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Odor | sweet; fruity; berry |
| Density | 1.020 g/mL at 25 °C |
| Solubility in water | Insoluble in water |
| log P | 3.2 |
| Vapor pressure | 0.00314 mmHg at 25°C |
| Acidity (pKa) | 15.95 |
| Basicity (pKb) | 4.43 |
| Magnetic susceptibility (χ) | -70.0×10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.518 |
| Viscosity | 2.27 cP (25°C) |
| Dipole moment | 2.10 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 383.6 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -241.4 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -3115 kJ/mol |
| Pharmacology | |
| ATC code | N02BE01 |
| Hazards | |
| GHS labelling | GHS07 Warning H315-H319-H335 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | H315, H319, H335 |
| Precautionary statements | Precautionary statements: "P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378 |
| NFPA 704 (fire diamond) | 2-2-0 |
| Flash point | 120°C |
| Autoignition temperature | 482°C |
| Lethal dose or concentration | LD50 (oral, rat): 1,595 mg/kg |
| NIOSH | WA2625000 |
| REL (Recommended) | 125 mg/m³ |
