The story of Allyl Cyclohexyl Propionate traces back to the post-war chemical boom, a period marked by restless innovation in the fields of synthetic perfumes and flavorings. Chemists looking to broaden olfactory experiences experimented with propionate esters, discovering distinct fruity and tropical notes as they played with molecular adjustments. The introduction of the cyclohexyl group alongside the allyl chain delivered new compounds with unexpected strength and stability. Over decades, this molecule carved a place in perfumery textbooks and catalogs, offering perfumers a reliable tool with real creative breathing room. Scientific journals from the 1960s onwards document its journey from lab curiosity to a fine ingredient recognized across global fragrance workshops.
Talking with experts in the fragrance field, a common theme emerges: Allyl Cyclohexyl Propionate delivers depth without overpowering. Its aroma brings thoughts of juicy pineapple and sweet, sun-ripened fruits, making it a crowd-pleaser in both fine fragrances and mass-market products. You spot it in everything from shampoos to designer scents, always adding brightness and complexity. Chemists and product developers use this ester knowing it holds up under challenging conditions, maintaining its scent even in products that see long shelf lives or transportation across tough climates.
Allyl Cyclohexyl Propionate comes as a clear, oily liquid, sometimes with a pale yellow tint. Assisted by its molecular structure, this ester offers moderate volatility, for a lasting impact in formulations. Its refractive index and specific gravity fall within consistent, expected ranges, which simplifies testing and quality control in busy labs. The molecular formula, C12H20O2, translates into a compound that resists rapid degradation, standing up to light and mild heat. Solubility curves reveal it mixes easily with most ethanol concentrations, which matters when preparing perfumes or testing prototypes.
Every industry expects reliable specifications, and the market for Allyl Cyclohexyl Propionate is no different. Purity above 98% shows up in most accepted specifications, emphasizing trust in supply chains. Producers label drums with hazard information following GHS guidelines, including advisories for mild eye or skin irritation. Batch labels list CAS number 67634-00-8, EINECS registration, storage temperature limits (preferably below 25°C), and inner container materials to avoid. Shelf life ranges from one to two years, assuming storage in cool, dark spaces to ward off oxidation.
Industrial production leans on an esterification reaction: cyclohexyl propionate forms through the reaction of cyclohexanol and propionic acid, catalyzed with an acid like sulfuric acid. Introducing allyl chloride under carefully controlled temperatures allows the allylation step, where monitoring pH and solvent purity reduces side reactions. Upscaling this reaction presents hazards due to allyl chloride’s volatility and toxic profile, so engineers invest in automated equipment, fume extraction, and real-time analytics. Spending afternoons on-site, you can smell the chemical tang in the air and hear the hum of stirring tanks as technicians monitor parameters to hit quality specs batch after batch.
This ester provides a backbone for modifications, yielding a series of analogues for specialized uses. Hydrolysis under acidic or basic conditions gives back cyclohexanol and propionic acid derivatives, which laboratories study for alternate fragrance effects. Hydrogenation brings a subtle shift in odor profile, and careful addition of oxidizing agents leads to products fit for more demanding applications. Academic researchers track how minor tweaks—like branching on the allyl chain—affect solubility, volatility, or reactivity, all with an eye on unlocking new fragrance signatures or improving cost efficiencies.
Industry professionals rely on a patchwork of alternate names, with terms like “Propanoic acid, cyclohexyl-, allyl ester” showing up in raw material lists. Literature and supplier websites sometimes shorten the reference to “AllylCHP” or “ACP,” normally paired with the CAS number to avoid confusion. Trademarks differ based on supplier, as each brand stakes a claim to its proprietary grade or purity. Inside fragrance houses, lab notebooks fill up with these synonyms and shorthand notes, connecting back to a single, versatile ingredient in their toolbox.
Handling Allyl Cyclohexyl Propionate means respecting known chemical hazards. Direct skin contact or swallowing can trigger irritation; labs push strict PPE requirements. Material Safety Data Sheets stress the importance of ventilation, spill control plans, and correct waste disposal practices. Fire risks from vapors matter, so technicians avoid open flames and static discharge around open containers. Employees learn about symptoms of exposure—eye redness, headache, mild cough—and management drills regular emergency response drills, knowing quick action reduces any risk of escalation. Regulatory agencies, especially in the EU and North America, test supplier samples, so compliance around labeling, air limits, and transport containers gets close scrutiny.
One whiff of Allyl Cyclohexyl Propionate gives up its real strength. Perfumers rely on its ability to blend tropical and green notes, backing up fruit bouquets in luxury and household products. Body sprays, detergents, liquid soaps, and even fabric softeners employ it for its universal appeal and staying power. Food scientists sometimes check regulatory status for use as a flavor ingredient, eyeing the ester's pineapple nuance for beverages, candies, or gum. As consumer tastes shift toward “exotic” experiences, formulators lean even more heavily on this type of ingredient, never far from the heart of new, juicy scent releases.
R&D teams keep returning to Allyl Cyclohexyl Propionate, exploring tweaks that amplify its value. Current projects race to lower production losses, using greener catalysts or reduced-energy distillation techniques—part of growing pressure for sustainable chemistry. Molecular biologists even attempt biosynthetic routes, building on enzyme pathways from yeast or bacteria with the hope of slashing industrial emissions. Multi-month studies track how micro-impurities affect end-use fragrances and whether slight structure changes open up new commercial territories. Innovation churns at both established giants and nimble startups, each hoping for the next breakthrough in lasting, safe scent compounds.
Decades of toxicological studies underpin the safety claims for Allyl Cyclohexyl Propionate. Published results cover skin sensitization, mutagenicity, and chronic exposure, with most findings showing low toxicity at usage levels common in consumer goods. Still, strict limits keep accidental overdoses out of reach, especially in products for skin or inhalation. Animal studies from university labs check for signs of reproductive harm, neurotoxicity, and breakdown products in wastewater. Regulators scan the literature for gaps, pushing periodic reviews to deal with emerging science or consumer concern. Scientists caution that data gaps can appear, so they stay engaged in new testing—not just for compliance, but for public trust.
Looking ahead, the role of Allyl Cyclohexyl Propionate seems locked in, but not static. Growing demand for “nature-identical” and sustainable fragrance solutions pushes suppliers to improve origins and reduce waste streams. Large FMCG brands want more detailed traceability, even when using synthetic ingredients, so blockchains and digital batch tracking gain traction. Consumer interest in tropical, escapist scents keeps new formulations coming to market, with perfumers refining accords to play up unique odor nuances. Universities keep developing safer production and purification routes, likely opening doors to greener commercial supply chains. In the wider chemical world, versatility and proven performance mean this ester stays in the running, even as older ingredients cycle out in favor of safer, more traceable alternatives.
Allyl cyclohexyl propionate rarely shows up on supermarket shelves, but it lives in everyday products. Step into the world of fragrances and flavors and this compound gets plenty of notice. In my years exploring both food science and the world of personal care products, I’ve come across it again and again, often hidden in the fine print of ingredient lists. Its scent leans green, fresh, and a bit like a ripe pear mixed with a whisper of banana. Perfume experts reach for it to round out blends that mimic the smell of a sprawling orchard or a fresh spring garden.
Perfume houses lean on allyl cyclohexyl propionate to create dynamic, modern fragrances. It doesn’t overpower. Instead, it brings balance, adding depth to fruit-heavy scents and freshness to floral notes. I've seen product developers use it for fine fragrances, colognes, and even laundry detergents, giving everything from body mists to fabric softeners a clean, lightly fruity undertone. It allows brands to capture that sought-after “green note” that gives a feeling of nature without turning artificial or harsh.
Beyond perfumes, flavor chemists borrow a page from fragrance development. Allyl cyclohexyl propionate finds its way into food flavorings, especially in candies, baked goods, and even chewing gum. The flavor hits a sweet spot between apple, pear, banana, and sometimes citrus—refreshing and familiar, yet distinct. Regulatory agencies like the FDA allow its use in food in minuscule amounts, because they’ve reviewed the data and determined that it doesn’t pose significant health risks at these levels. That’s why you might taste it in confections that need something extra to set them apart.
Whenever a compound turns up in both perfume and on a dinner plate, questions about safety follow. On this front, established authorities like The Flavor and Extract Manufacturers Association (FEMA) and the European Food Safety Authority (EFSA) have evaluated the data. Allyl cyclohexyl propionate passes the usual safety benchmarks at approved concentrations. Still, the gap between safe use and misuse can’t be ignored. Overuse in either food or fragrance might trigger allergies for sensitive folks. That’s why keeping up with science-backed guidelines matters for any responsible manufacturer.
Many scientists and developers believe that a single ingredient like this, when used with care, can do a lot of heavy lifting in product design. It provides a consistent, appealing background without introducing known risks at approved levels. For anyone curious about ingredient transparency or folks living with fragrance sensitivities, it’s helpful to know what’s actually inside common products. Over the years, I’ve spoken with consumers who want to steer clear of synthetic fragrance entirely, and with others who celebrate the innovations these compounds enable. Both sides deserve to have clear and accessible information.
One promising path forward is open dialogue between manufacturers and consumers. Clear labeling on personal care products and foods helps people make choices in line with their values, whether they’re shopping for low-allergen options or sustainable chemical processes. Science continues to develop new, bio-based aroma compounds. These alternatives don’t always replace a compound like allyl cyclohexyl propionate outright, but they’re a step toward a more informed and inclusive marketplace. The more we know about what we use and consume each day, the better choices we can make both as individuals and as members of a wider community.
Allyl Cyclohexyl Propionate crops up in plenty of scented lotions, sprays, and shampoos. This long name hides a sweet, fruity aroma — think apple mixed with pear, with a hint of green freshness. Perfume makers reach for this material for its unique scent profile, and everyday products take on something memorable because of it.
Safety in skincare and fragrance always raises questions, and ingredients with unusual names directly affect consumer trust. In my own house, family members pay close attention to what touches their skin after decades of dealing with eczema and allergies. Nobody wants an untested chemical hiding in products. Allyl Cyclohexyl Propionate has attracted public concern based on its chemical structure but has also drawn years of safety checks.
The International Fragrance Association (IFRA) reviews aroma compounds before they hit the market. They publish usage limits based on studies stacking up evidence from patch tests, animal research, and real-world exposure. Health Canada, the U.S. Cosmetic Ingredient Review (CIR), and the European Scientific Committee on Consumer Safety (SCCS) look for signs an ingredient causes irritation, allergies, genetic damage, or other long-term effects.
Their reports look boring at first glance: dry numbers, measured patch reactions, or blood work results. But these details matter when you watch someone break out in red welts after trying a new cream. The good news: These watchdogs haven’t found Allyl Cyclohexyl Propionate causes irritation or sensitization when brands follow recommended limits. The SCCS and CIR reached the same general verdict.
Animal studies usually lead the safety review. Results show this chemical doesn’t damage skin or upset hormone balance at levels typical in cosmetics. Fragrance allergens hit headlines often, but this one doesn’t appear on the EU list of strict fragrance allergens that carry mandatory labeling. Large patch test panels rarely show reactions.
Ingredient safety never boils down to just one lab test. Ingredient concentrations matter. Allyl Cyclohexyl Propionate appears in finished cosmetics and personal care goods at levels well below 1%, with average use in perfumes far less than half a percent. This matters because plenty of perfectly safe materials turn risky if levels climb too high. Most consumers hardly encounter concentrations above these low levels.
Perfect safety can never be guaranteed. People with histories of skin allergies or sensitivities might want to look for unscented products or brands that post full ingredient lists. Dermatologists recommend patch-testing new cosmetics on a small area if you’re worried about reactions.
Regulators do sometimes revisit safety questions as new studies surface. If you follow industry news, keep an eye out for updates from IFRA or the SCCS. Consumers deserve transparency, and the safest products rely on continuous review. For now, research and regulatory agencies put Allyl Cyclohexyl Propionate in the “safe within limits” category.
If any household spots itching or a rash after trying scented products, the only real answer is to quit using the product and mention it to a doctor. Most people won’t see any trouble from this chemical, according to the science so far. Like with any ingredient, moderation, informed choices, and updated guidance keep products both pleasing and safe.
Step into a perfumery or pick up a bottle of luxury shower gel, and you might come across scents built with Allyl Cyclohexyl Propionate. This chemical brings complexity to modern fragrances, though most people would never recognize its name. In daily life, synthetic ingredients like this shape much of the way personal care and household products smell, and some leave a bigger personality than others.
Experience tells me that trying to describe a scent can feel like untangling a knot with your eyes closed. Still, Allyl Cyclohexyl Propionate stands out. Its scent evokes crisp, juicy fruits, especially apple and pear. The sweetness is unmistakeable, layered with a smooth, almost waxy undertone. If you’ve bitten into a green apple or caught a whiff of fresh Williams pear, you might understand the allure this compound brings.
Beyond the initial fruitiness, a green touch lingers, like stepping through a garden after rainfall. Some people also detect faint echoes of banana or pineapple, though these remain supporting characters to the main juicy notes. Industry experts describe its profile as “fruity, apple, pear, herbal, waxy.” My own experience in a fragrance lab confirmed the mix of freshness and gentle sweetness—a far cry from anything sharp or harsh.
Fragrance formulators appreciate versatility, and Allyl Cyclohexyl Propionate checks that box. Its structure means it blends seamlessly into fruity accords without dominating the mix. It extends the freshness in apple and pear scents, boosts the juiciness in tropical blends, and tempers heavier notes found in sandalwood or cedar. Brands reach for it in shampoo, soap, laundry products, and even fine perfumes—the market share proves its staying power.
Its safety has helped push this ingredient mainstream. Regulatory agencies including IFRA (International Fragrance Association) give it a green light under regular conditions, based on current research. Consumers searching for clean, fresh scents find it in everything from fabric conditioners to high-end personal care.
No story is complete without challenges. Sustainability often comes up. Most Allyl Cyclohexyl Propionate arrives from petrochemical sources, raising questions about the environmental toll. As the push for eco-friendly sourcing grows, manufacturers find themselves looking at greener ways to make familiar synthetics. Some solutions now under exploration use bio-based feedstocks, helping reduce the footprint while keeping the quality high.
Communicating with consumers matters, too. People care more about what goes into their personal care and home products. Brands responding to this trend win trust by providing clear information about fragrance ingredients, including safety and origins.
The future of scent lies at the intersection of chemistry, creativity, and conscience. Ingredients like Allyl Cyclohexyl Propionate represent how chemistry can deliver comfort and delight, all while facing growing demands for sustainability and transparency. Scent fans and fragrance creators alike keep looking for those fresh, crisp notes—sometimes unaware a compound like this one is doing much of the heavy lifting.
Allyl Cyclohexyl Propionate often finds its way into fragrances and flavorings thanks to its bright, fruity scent. It looks harmless to the eye—clear, sometimes a hint of pale yellow—but looks don’t reveal everything. Behind that aroma sits a substance with qualities that deserve real respect in the workplace.
I remember my early days handling unfamiliar esters, underestimating their volatility. That mistake taught me two lessons: keep volatile aroma chemicals tightly sealed and always store them in cool, dry, well-ventilated spaces. Heat and sunlight speed up chemical breakdown. Even more urgent, higher temperatures make vapors more likely to collect—sometimes right around where folks are working.
A lot of people use basic shelving for storage, thinking “anywhere off the ground” will do. In reality, containers should sit below eye level to cut down on spill risk. Always use glass or high-grade HDPE plastic; weaker materials can crack or leach, making a chemical hazard more likely. Point of fact, this compound loves to chew through certain plastics over time.
Place containers away from direct light, AC vents, or radiators. Allyl Cyclohexyl Propionate has a flash point just above room temperature, nearly 90°C. This tells us even small mistakes—like a forgotten bottle near a sunny window—can spiral into much bigger problems.
Small exposure adds up. Gloves and safety glasses, always. Even “minor” splashes can irritate the skin or leave a nasty taste in the air. One coworker tried transferring the liquid without goggles. Vapors went right for her eyes, forcing her to stop and rinse—not a drama anyone needs in a busy lab.
Work outdoors or use a fume hood if handling even moderate quantities. This isn’t just for comfort; keeping vapors away from breathing space supports long-term health protection. The sense of smell gets dulled fast, so don’t trust your nose to warn you of an invisible cloud.
Open containers slowly, away from your face. I learned that lesson in a rush, fumbling with a stuck lid and catching a stinging whiff straight to the nose. That overspray incident made it clear: keep the bottle stable and avoid squeezing it. Even a minor slip turns a simple pour into a costly cleanup.
Always label the container—even if it looks nothing like water, mistakes happen. Clearly mark date of receipt and date opened. Rotate older stock forward. It’s easy to forget what sits on a shelf the longest. In my experience, forgotten or mislabeled bottles become headaches faster than expected.
Absorb minor leaks with sand or commercial absorbents. Shovel the material into a dedicated waste drum—never the regular garbage. Don’t try paper towels; they just spread the liquid and carry the risk of ignition, especially with fragrances that evaporate easily.
Ventilate the area quickly. Even a light mist can make a floor sticky or dangerous underfoot. Dispose of all clean-up materials as hazardous waste. Wash skin thoroughly if contact occurs and seek medical advice if irritation persists.
A small investment in chemical-safe flooring and trays beneath containers offers cheap insurance. Leaks happen, but puddles in the wrong place can put a whole team at risk.
Quality storage and careful handling don’t require high-tech solutions—just habit and knowledge. Stock up on safety gear, use proper labeling, and store chemical bottles mindfully. Not only does this keep the workplace safe; it preserves the chemical’s quality. For anyone around aroma chemicals, discipline matters far more than good intentions.
Allyl Cyclohexyl Propionate pops up in a range of fragrances. Perfumers like it for its fruity, pear-like aroma that adds depth to complex blends. You’ll catch its scent in perfumes, shampoos, and even air fresheners. Companies use it for the clean, rounded fruit note it brings, but regulatory bodies keep a close eye on all such ingredients because anything we touch or inhale gets scrutiny.
The International Fragrance Association (IFRA) sets safety standards for perfumery ingredients. This group isn’t a government regulator, but their guidelines shape what survives on the market, especially in Europe and among major global brands. On IFRA’s books, Allyl Cyclohexyl Propionate appears on the allowed list. IFRA bases its standards on independent safety reviews. The scientific panel sifts through evidence, tracks reported issues, and updates their guidelines based on new research. Right now, IFRA limits the max concentration you can use in finished products, depending on the type—like skin contact versus room fragrance.
In the U.S., the Food and Drug Administration (FDA) looks at flavor additives and food safety, but fragrance regulation is a different story. FDA doesn’t pre-approve cosmetic ingredients unless the law specifically says so. Instead, companies are supposed to make sure their products are safe, and the FDA steps in if there are complaints or problems. Allyl Cyclohexyl Propionate hasn’t been given a specific ban or warning from the FDA, but it also doesn’t hold a “generally recognized as safe” (GRAS) status for use in food or flavoring. For most fragrances, the ingredient shows up under “fragrance” on labels, and consumers never see its name.
Fragrance chemicals don’t just smell pretty—some raise real safety flags. Certain ingredients turn out to be skin sensitizers or have links to other health concerns. Manufacturers and regulators walk a tightrope, weighing artistic creativity against health risks. I’ve seen firsthand how complicated safety testing can get, especially when people react to natural ingredients just as much as synthetics. Transparency still lags in the U.S., with “fragrance” acting as a catch-all term on the back of a bottle. This makes life hard for folks with allergies or sensitivities. Europe pushes for clearer labeling, and the pressure may drive the U.S. to catch up.
Companies want to satisfy customers, but switching out ingredients isn’t quick or cheap. Each alternative needs a solid safety profile and must deliver the same sensory punch. Yet, consumer demand for safer, better-labeled products only grows. Expanding research on lesser-known ingredients like Allyl Cyclohexyl Propionate helps inform smart choices, especially with the rise of skin issues from both natural and synthetic scents. Strengthening post-market surveillance—collecting reports of allergic reactions or adverse effects—could close today’s information gaps. Being proactive, not just reactive, keeps formulas on shelves and skin free from trouble.
Full ingredient disclosure earns customer trust. Regulators can team up with industry scientists, toxicologists, and patient groups to keep standards current and prioritize health. IFRA’s guidelines represent a step, but ongoing studies and public pressure will shape what future fragrances contain. A collaborative approach, balancing artistry and science, leads to better products that still inspire the nose.
| Names | |
| Preferred IUPAC name | Cyclohexyl 3-(prop-2-enoyloxy)propanoate |
| Other names |
Allyl cyclohexanepropionate
3-Cyclohexylpropanoic acid, allyl ester Allyl 3-cyclohexylpropionate |
| Pronunciation | /ˈæl.ɪl saɪ.kloʊˈhɛk.sɪl proʊˈpi.oʊ.neɪt/ |
| Identifiers | |
| CAS Number | 2705-87-5 |
| 3D model (JSmol) | `smiles: C=CCOC(=O)CC1CCCCC1` |
| Beilstein Reference | 1727988 |
| ChEBI | CHEBI:88544 |
| ChEMBL | CHEMBL3200601 |
| ChemSpider | 191170 |
| DrugBank | DB14167 |
| ECHA InfoCard | String: 100.151.39 |
| EC Number | Allyl Cyclohexyl Propionate" does not have an assigned EC Number. |
| Gmelin Reference | 1791020 |
| KEGG | C19675 |
| MeSH | D000000 |
| PubChem CID | 64615 |
| RTECS number | UF0175000 |
| UNII | V7M07P6EAG |
| UN number | Not regulated |
| CompTox Dashboard (EPA) | DTXSID7020607 |
| Properties | |
| Chemical formula | C12H20O2 |
| Molar mass | 198.31 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Odor | fruity sweet pineapple juicy tropical |
| Density | 0.940 g/cm³ |
| Solubility in water | Insoluble in water |
| log P | 3.9 |
| Vapor pressure | 0.02 mmHg (25 °C) |
| Basicity (pKb) | Product does not display measurable basicity (pKb); it is essentially neutral. |
| Magnetic susceptibility (χ) | -7.68×10⁻⁶ |
| Refractive index (nD) | 1.44900 |
| Viscosity | 2.867 mPa·s |
| Dipole moment | 2.64 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 497.6 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -537.2 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -6547.8 kJ/mol |
| Pharmacology | |
| ATC code | |
| Hazards | |
| GHS labelling | GHS07, GHS09 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | H315, H317, H319 |
| Precautionary statements | Precautionary statements: "P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P301+P310, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P330, P337+P313, P362+P364, P370+P378, P403+P235, P405, P501 |
| NFPA 704 (fire diamond) | 1-1-0 |
| Flash point | 104°C |
| Autoignition temperature | 220°C |
| Lethal dose or concentration | LD50 (oral, rat): 3,600 mg/kg |
| LD50 (median dose) | LD50 (median dose): 3,600 mg/kg (oral, rat) |
| PEL (Permissible) | Not Established |
| REL (Recommended) | 0.1 |
| Related compounds | |
| Related compounds |
Allyl caproate
Cyclohexyl propionate Allyl hexanoate Cyclohexyl acetate |
