What Is Iso Cyclo Geraniol?
Iso Cyclo Geraniol is a synthetic aroma chemical first introduced by International Flavors & Fragrances, better known as IFF. While IFF remains the primary source, several other suppliers now offer comparable grades, so perfumers can find it under slightly different trade names.
The molecule belongs to the family of terpenoids and is made through controlled chemical reactions that refine naturally occurring raw materials into a pure fragrance ingredient. The finished product appears as a clear to faint-yellow liquid that pours easily at room temperature, making it simple to weigh and blend.
Its use is widespread in modern perfumery because it fills a special niche in the spicy floral space, acting as both a character note and a smooth connector between other materials. You will encounter it in perfumes, home scent products, and even fragranced soaps where it shows very good performance.
When stored with the cap tightly closed in a cool, dry spot away from direct light, Iso Cyclo Geraniol keeps its quality for roughly two to three years before subtle oxidation may start to dull its brightness. Compared with many niche aroma chemicals it sits in the moderate price range, so it is accessible for both large and small-scale creators.
Iso Cyclo Geraniol’s Scent Description
This material is generally grouped within the spicy olfactory family, yet it also carries a green floral edge that recalls fresh carnation petals.
Off a smelling strip the first impression is a lively, peppery sparkle followed by crisp green nuances similar to crushed stems. As the minutes pass a gentle floral body unfolds, hinting at clove bud, rose leaf and a soft waxy sweetness. The blend of spice and petal stays smooth rather than sharp, making the note feel natural and well rounded.
In the classical top, middle and base note framework, Iso Cyclo Geraniol sits firmly in the heart where it bridges brighter openings and deeper drydowns. It rises within the first ten minutes, sings for two to three hours, then settles into a faint spicy warmth that can be detected on paper up to a full day later.
Projection is moderate: it diffuses enough to add presence without overwhelming nearby notes. Longevity is above average for a heart note, giving compositions a steady floral spice glow well into the drydown.
How & Where To Use Iso Cyclo Geraniol
Perfumers reach for Iso Cyclo Geraniol when a formula needs a spicy lift that still feels green and slightly floral. It shines in carnation and clove accords, adding realism and depth without the raw bite that pure eugenol can give. A touch can also freshen rose, muguet or herbal bouquets, while in masculine fougères it supports lavender and oakmoss with a clean leafy hum.
The material works best in the heart of a composition, bridging top sparkle and base warmth. At trace levels below 0.1 %, it reads mainly as dewy foliage. Around 0.3-1 % the clove facet blooms, giving a soft peppery glow. Push it toward 2-3 % and the note gains body and persistence, helpful in soap where fragrance often flattens after curing. Going past 4-5 % risks a medicinal edge that can crowd out delicate florals or create an unwanted disinfectant vibe.
Applications are broad: fine fragrance, candles, air care, fabric spray and especially bar soap thanks to its very good performance and good stability in alkaline media. It tolerates moderate heat, so it can be added during the cool-down phase of melt-and-pour bases or directly into hot process soap just before pour. In alcohol perfume it dissolves readily with no clouding issues.
Drawbacks are minor but worth noting. High dosages can clash with heavy aldehydes or certain fruity esters, making the blend smell muddy. In highly acidic cleaners it may lose some lift, so test first. It is non-biodegradable, so avoid applications where rinse-off volume is high unless local regulations allow.
For bench work, premix Iso Cyclo Geraniol to 10 % in ethanol, dipropylene glycol or IPM for easier weighing and safer smelling. The liquid is medium viscous but pours cleanly; warming the bottle slightly in a water bath can help on cold days. Always label dilutions clearly and record batch numbers to trace any future odour drift.
Safely Using Iso Cyclo Geraniol
Dilution is key. Prepare a 10 % or weaker solution before evaluating the scent to keep vapour levels low and to protect your nose from overload. Avoid direct sniffing from the bottle; instead wave the blotter lightly under the nose. Work in a well-ventilated space or under a fume hood to prevent buildup of airborne droplets. Gloves and safety glasses provide a basic but important barrier against accidental splashes.
Like many aroma chemicals, Iso Cyclo Geraniol can irritate sensitive skin or trigger allergic reactions in predisposed people. If you notice redness, itching or any discomfort stop contact immediately and wash the area with mild soap and water. Those who are pregnant or breastfeeding should talk with a healthcare professional before frequent handling of any fragrance raw material.
Short encounters with low concentrations are generally considered safe, yet prolonged exposure or working with neat material can strain the respiratory system and dry out skin. Keep the workplace clean, cap bottles promptly and avoid eating or drinking near the bench to cut the chance of accidental ingestion.
Always consult the latest safety data sheet from your supplier and review it periodically as classifications can change with new research. Follow current IFRA guidelines for maximum use levels in each product category to ensure both consumer safety and regulatory compliance. Proper documentation today saves headaches tomorrow.
How To Store & Dispose of Iso Cyclo Geraniol
Iso Cyclo Geraniol keeps its character best when it is cool and protected from light. A refrigerator set around 4 °C slows oxidation, yet a cupboard that stays below 20 °C and out of direct sun is usually fine for day-to-day work. Whichever spot you choose, make sure the bottle is upright and away from heaters, windows or busy walk paths where it might get knocked over.
Use bottles fitted with polycone caps because the flexible insert forms a snug seal that limits air seepage. Dropper tops breathe each time they are squeezed so avoid them for anything more than a one-day test mix. Try to keep the container at least three-quarters full; topping up with nitrogen or adding glass marbles can displace air in partly used stock.
Store diluted solutions in amber glass or high-quality HDPE and label every vial with the material name, CAS number, concentration, date and any hazard phrases. Good labels cut the risk of mix-ups and help anyone who shares the bench know what they are handling.
When a batch is no longer needed do not pour it down the drain since the material is classed as non-biodegradable. Small amounts can be wiped with an absorbent pad, sealed in a solvent-resistant bag then placed in the chemical waste bin for solvent incineration. Larger volumes should go to a licensed disposal contractor who can handle flammable organic liquids. Rinse empty bottles with a little alcohol, add the rinse to your waste container and deface the label before recycling the glass or plastic as local rules allow.
Summary
Iso Cyclo Geraniol is an IFF-created aroma chemical that adds a spicy green carnation note to perfumes, soaps and home fragrance. It acts mainly as a heart note, bridging bright tops with deeper bases while offering good staying power and a smooth blend.
Perfumers value it for the way it lifts clove, rose or herbal accords without turning harsh. Stability in soap, a moderate cost and easy solubility make it a staple on many workbenches, though its specific clove-like tone means it suits some themes more than others.
The material is sold in bulk by IFF and other commercial suppliers. Hobbyists can find smaller bottles from fragrance labs and reseller websites that carry generic grades under the same CAS number. With mindful storage, careful dosing and proper waste handling it is a reliable tool for anyone exploring the spicy side of scent design.