What Is Syringa Aldehyde 50%?
Syringa Aldehyde 50% is a floral aroma chemical supplied in a diluted form that makes it easier to handle and dose in the lab. The most widely distributed grade comes from Givaudan, one of the major names in the fragrance industry, though several other suppliers offer comparable qualities under generic names.
The molecule itself is produced through standard organic synthesis from simple petrochemical or bio-based building blocks. Once purified it is blended with a neutral solvent to exactly fifty percent strength, which keeps the material pourable and helps control its powerful odor profile.
At room temperature the ingredient is a clear, water-thin liquid with no visible color. It ships in metal or amber glass to protect it from light and air. When stored in a cool dry place, unopened drums or bottles normally stay in good shape for around two to three years before the scent starts to lose freshness.
Perfumers reach for Syringa Aldehyde when they need a strong yet refined floral-green effect, so it turns up in fine fragrance, soap bases and household products. Usage volumes are usually low because the material is potent, which keeps the overall cost of a formula down even though the raw material itself sits in the mid-price bracket.
Syringa Aldehyde 50%’s Scent Description
This ingredient falls solidly into the floral family. Off a blotter the first impression is a burst of dewy lilac backed by fresh cut grass. Within seconds a honeyed sweetness rises, softening the green edges and hinting at spring blossoms just coming into bloom. As the minutes pass a faint rosy nuance appears, keeping the accord elegant rather than heady.
Perfumers classify notes by how fast they evaporate. Top notes greet the nose in the first few minutes, middle notes build the heart of the perfume and base notes linger the longest. Syringa Aldehyde behaves as a bright top-to-heart bridge: it flashes quickly to grab attention yet holds on long enough to blend into the central bouquet.
Projection is strong, so even a trace can influence an entire accord. On a paper blotter the scent stays recognizable for close to ten hours before fading to a soft green whisper. That makes it an excellent choice when you need early lift plus decent staying power without relying on heavier base materials.
How & Where To Use Syringa Aldehyde 50%
Perfumers pull out Syringa Aldehyde 50% whenever they need a crisp realistic lilac or hyacinth effect at the very top of a formula. The molecule brings instant lift to floral bouquets, especially those built on rose, jasmine or muguet where a touch of leafy freshness stops the heart from feeling heavy. In a classic lilac accord it usually works alongside lilial, hydroxycitronellal and traces of phenyl acetaldehyde, filling the gap between sharp green aldehydes and creamy petal notes.
At levels around 0.1-0.5% of the finished perfume it smells bright and dewy. Pushing it toward 1% shifts the profile to a greener sharper tone that can dominate supporting florals. Above 2% the sweetness turns almost sugary and a plastic nuance can creep in which is why most functional products keep the dose below that range. If you need only a whisper of spring freshness, a few drops in a kilo of concentrate are often enough.
Its strong projection makes it a go-to for soaps, shampoos and fabric softeners where bloom out of water is critical. In candles it survives the burn reasonably well though some of the leafy facets fade. It performs less impressively in very acidic cleaners where the aldehyde can degrade, so citric toilet blocks or vinegar based sprays are not prime targets.
Overuse risks crowding the top of the perfume, giving an overtly green edge that clients may read as synthetic. It can also clash with citrus terpenes, so test the blend early if you are building a sparkling floral cologne.
The ingredient arrives pre-diluted but still benefits from further thinning to 10% in ethanol or dipropylene glycol for precise weighing. Gentle warming of the drum to 25 °C loosens viscosity for easier pouring. Keep pipettes and beakers scrupulously clean because even tiny residues of phenolic materials can skew the odour.
When sketching a formula treat Syringa Aldehyde 50% as a link between top and heart notes. Add it after the volatile citruses yet before heavier florals to ensure the evaporation curve feels seamless. Always run a stability test in high-pH bases like bar soap, as aldehydes can undergo aldol reactions over time.
Safely Using Syringa Aldehyde 50%
Handle Syringa Aldehyde 50% with the same respect you give any potent aroma chemical. Dilute before evaluation to avoid overwhelming odour exposure. Never inhale straight from the bottle; instead fan a smelling strip a short distance from the nose. Work in a space with good airflow or under a fume hood so vapours do not accumulate. Wear nitrile gloves to prevent skin contact and safety glasses to shield your eyes.
Like many aldehydes, the material can provoke irritation on sensitive skin if used neat or at high concentration. Occasional low-level inhalation during compounding is generally safe, yet prolonged exposure may lead to headaches or respiratory discomfort. Anyone who is pregnant or breastfeeding should seek medical advice before routinely handling any fragrance raw material.
Eye splashes cause stinging and redness; flush immediately with plenty of water and seek medical attention if discomfort persists. Should the liquid contact skin, wash with soap and water rather than solvents which can spread the residue. Spills on benches wipe up easily with paper towels followed by alcohol but avoid flushing large amounts down the drain.
Store the bottle tightly closed in a cool dark place, ideally between 10 °C and 20 °C. Keep it away from oxidising agents and strong acids to prevent unwanted reactions. Dispose of expired or contaminated stock through a licensed chemical waste contractor instead of household trash.
Always consult the latest safety data sheet from your supplier and update your records whenever a new revision appears. Follow current IFRA guidelines for maximum use levels in each product category and document those limits in your formula files.
How To Store & Dispose of Syringa Aldehyde 50%
Store Syringa Aldehyde 50% in a tightly closed amber glass or stainless-steel container kept in a cool dark cupboard between 10 °C and 20 °C. A refrigerator is not essential but slowing the temperature a few degrees helps preserve freshness beyond the usual two-to-three-year window. Always position bottles away from radiators, direct sunlight and any source of ignition.
Swap standard screw tops for polycone caps once you open the drum. Their conical liner forms a tighter seal that blocks slow vapour loss and stops oxygen creeping in. Avoid dropper bottles for long-term storage because the rubber bulbs wick scent and let air circulate back into the liquid.
Try to keep each container as full as possible. Decant what you need into a smaller bottle rather than leaving a half-empty original. Less headspace means lower risk of oxidation, which can flatten the green floral sparkle and pull the scent toward an off-sweet note.
Label every vessel with the full ingredient name, the main CAS numbers and hazard phrases such as “Flammable liquid, may irritate skin” so anyone who handles it later knows exactly what is inside. Include the date you first opened the batch and the suggested review date two years on.
When it is time to discard old material remember that Syringa Aldehyde 50% is readily biodegradable and considered non-hazardous in the environment, yet its strong odour can overwhelm domestic drains. Small laboratory residues can be diluted with plenty of water then sent to a municipal treatment facility only if local rules allow. Larger volumes or concentrated waste should be collected in a sealed can and handed to a licensed chemical disposal contractor or solvent-fuel recycler. Rinse empty bottles with a little alcohol, let them air dry in a fume hood and recycle the glass where facilities exist.
Summary
Syringa Aldehyde 50% is a pre-diluted floral aroma chemical from Givaudan that delivers a crisp lilac and hyacinth effect with a sweet green edge. It shines as a top note that bridges smoothly into the heart, offering ten-hour blotter hold and outstanding bloom in soap while remaining less harsh than phenyl acetaldehyde.
Perfumers value its ability to lift rose, muguet and mixed bouquet accords at doses as low as 0.1 percent, though going past 2 percent can turn the profile sugary and plastic. The material holds up well in alkaline bases, costs more than standard extenders yet stretches far because of its impact and arrives ready for easy weighing.
Stability is good in most formats, but prolonged heat, light or excess air will still nudge the aldehyde toward dullness, so mindful storage is key. If you need a realistic spring floral flash in fine fragrance, soap or fabric care, few ingredients hit the mark as neatly.
Commercial houses can buy direct from Givaudan or its distributors in kilogram lots, while hobbyists and indie brands will find smaller packs through specialist fragrance suppliers and generic manufacturers that sell compatible grades.