What Is Allylione?
Allylione is an aroma chemical belonging to the ketone family, prized for its ability to add a soft floral nuance to perfumes and fragranced products. It was first introduced by Symrise, one of the major suppliers of specialty fragrance materials, though a handful of other manufacturers now offer comparable grades under alternate trade names.
The material is produced through a multi-step synthesis that builds an allylic side chain onto a ketone backbone. This lab-based route delivers a consistently pure product that does not rely on any botanical harvest, which helps keep quality and supply stable year round.
At room temperature Allylione appears as a clear liquid with a faint yellow tint. The viscosity is close to that of vegetable oil, making it easy to pour and measure in a compounding lab. Its mild odor strength means even a small open sample will not overwhelm a workspace.
Perfumers reach for Allylione most often as a modifier rather than a starring note, but it still enjoys regular use in fine fragrance, personal care bases and home products. When stored in a tightly closed container away from heat and light it maintains its quality for about two to three years before the aroma starts to dull.
Cost-wise Allylione sits in the mid range of specialty floral ingredients. It is not as inexpensive as bulk synthetic musks yet remains far more affordable than natural orris or violet extracts, making it a practical choice when a formula needs a powdery floral accent without driving up the budget.
Allylione’s Scent Description
Allylione is classified in the floral family. On a scent blotter it opens with a clear violet impression reminiscent of crushed leaves and petals. Very quickly a cool orris note emerges, adding a gentle powdery feel that softens the initial greenness. As the minutes pass a subtle pineapple tone peeks through, giving the overall accord a playful fruit lift while a whisper of dry wood anchors the harmony.
Perfumers often speak in terms of top, middle and base notes. Top notes are the first, fleeting impressions, middle notes form the heart that carries the character and base notes provide depth and fixation. Allylione sits firmly in the heart: it appears after the lightest volatiles fade yet is not heavy enough to qualify as a base. Thanks to its molecular weight it can still be smelled well into the drydown, linking the brighter start of a perfume to its deeper foundation.
Projection is moderate. The material does not shout across a room but it will radiate gently from skin or fabric for the first few hours then settle close. Longevity is solid for a floral modifier, lasting six to eight hours on a blotter before slipping into a faint sweet powder tone that eventually dissipates.
How & Where To Use Allylione
Perfumers pull out Allylione when a composition needs a gentle bridge between delicate florals and soft woods. Its violet-orris profile slots neatly into lipstick style accords, iris bouquets, green violet leaf themes or any formula looking for a retro powdery touch without leaning on costly natural orris.
At trace levels below 0.1 % it acts mainly as a blender, rounding sharp green facets and giving an overall creamy coherence. Bump the dose to 0.3–0.5 % and the pineapple sparkle comes forward, lifting fruity top notes and adding a playful twist to tropical florals. Push toward 1 % and the material becomes more obvious, laying down a powdery core that can overtake fragile jasmines or lilies if not balanced with brighter allies like hedione or citrus terpenes.
Formulators choose Allylione over ionones or irones when they want a softer less rooty iris effect or when budget constraints rule out naturals. It also stays stable in bleach and alkaline cleaners, making it a go-to for scented soaps detergents and softeners where many fine fragrance materials fail.
There are a few caveats. In very high dosages above 2 % the note can drift into a dusty pencil shaving nuance that muddies transparent florals. It may also flatten fruity top accords by absorbing freshness, so pair it with crisp modifiers like cis-3-hexenol or red berries to keep the opening lively.
Preparation is straightforward: pre-dilute to 10 % in ethanol or dipropylene glycol for easier weighing and quicker evaluation. The liquid blends readily at room temperature and does not need heating or added stabilizers, though a quick shake before use ensures homogeneity.
In short, reach for Allylione when you need a cost-effective powdery veil, dose with restraint to avoid heaviness and always test in the final base to confirm that its quiet floral hum carries just far enough.
Safety Information
Always dilute Allylione before evaluation and avoid sniffing the neat liquid straight from the bottle. Work in a well-ventilated space so vapor build-up stays low. Gloves and safety glasses protect skin and eyes from accidental splashes.
Like many fragrance ingredients Allylione can provoke irritation or sensitisation in susceptible individuals, especially with repeated contact or high concentrations. If you are pregnant or breastfeeding consult a healthcare professional before handling any aroma chemicals.
Brief exposure to low levels during normal compounding is generally considered safe, yet prolonged or concentrated contact can pose respiratory and dermal risks. Wash hands after use and keep containers sealed when not in use to limit evaporation.
Dispose of waste solution via an approved chemical disposal route rather than pouring it down household drains. Clean spills promptly with absorbent material and ventilate the area.
Always review the latest safety data sheet from your supplier and abide by current IFRA guidelines for maximum usage levels in each product category, revisiting both documents periodically as regulations can change.
How To Store & Dispose of Allylione
Store Allylione in tightly closed glass or high-grade plastic bottles kept in a cool dark cabinet. A fridge dedicated to fragrance materials will slow oxidation even more, but normal room temperature is acceptable if the space stays below 25 °C and away from sunlight or heaters.
Use polycone-lined caps for both neat product and dilutions. These caps form a snug seal that limits air seepage better than dropper tops, which often leak and let oxygen creep in. Fill containers as high as practical so the headspace is small. Less air means slower color changes and a fresher scent profile.
Label every bottle clearly with the name Allylione, the dilution strength and the main hazard icons from the safety data sheet. Adding the date you opened or mixed the batch helps track age.
When a stock has degraded or you simply no longer need it, do not wash it down the drain. Although Allylione is readily biodegradable, dumping concentrated liquid can still upset water systems. Collect waste in a sealed jar then hand it to a local chemical disposal service or household hazardous waste site. Soaked blotters and small wipes can go in the trash if fully dry and sealed in a bag.
Rinse empty bottles with a bit of alcohol, add the rinse to your waste jar, then recycle or discard the clean container according to local rules.
Summary
Allylione is a synthetic floral ketone from Symrise that gives a gentle mix of violet, orris, green leaf and a hint of pineapple. In formulas it acts as a soft powdery bridge between delicate flowers and woods, shining at levels below 1 percent.
Perfumers like it because it costs less than natural iris extracts yet still delivers a classic lipstick aura. It holds up well in soaps, cleaners and candles so the same bottle can serve fine fragrance and functional work.
The material stays stable for several years if stored cool, capped tight and protected from light. It is biodegradable and easy to handle though skin and eye contact should be avoided.
Commercial houses can order Allylione directly from Symrise or through major fragrance distributors. Hobbyists will find smaller packs from niche suppliers and generic producers who offer comparable grades for testing and small batch projects.