ISOEUGENOL – spicy, floral and warm note with hints of cloves and ylang-ylang

CAS 97-54-1, 5932-68-3. Slightly viscous, pale yellow or almost colorless liquid, practically insoluble in water, soluble in alcohol, oils, and propylene glycol, turbidly soluble in mineral oil, insoluble in glycerin.
Soft and sweet, rich and floral perfume, very persistent, with great warmth and similarity to the smell of cloves.
Warm, sweet, slightly spicy flavor with floral and spicy notes, which vary according to the quality of the raw materials.
Widely used in perfumery compositions, primarily as a base for clove, but also as a sweetener with excellent persistence. It has a sensitivity to alkaline bases similar to eugenol and a greater propensity to polymerize. Polymerization is accompanied by loss of scent, increased viscosity, and color. Therefore, this material is not recommended for use as a soap fragrance. It can be used in small quantities in other types of products, except for white soaps.
Isoeugenol is a classic ingredient in perfumes like Oregan and can lend a much-desired warm base and powdery note to the violet base. It is found in numerous perfume bases and ready-made fragrances, as well as artificial essential oils (ylang-ylang, nutmeg, etc.), and occupies a unique position in that there are no substitutes for isoeugenol in perfumery.
It is used in moderate quantities to impart many fragrances, for example to imitate raspberry, peach, nutmeg, cinnamon, apricot, as well as in fruity compositions, nuts, mint, as a base for spices and as a seasoning for cloves.
The concentration in the finished food product is usually only a few parts per million, except in chewing gum, where it can be as high as 1000 parts per million.
Isoeugenol is used in clove, spicy, and amber fragrances, often in combination with eugenol. It is often replaced with acetylisoeugenol, which is not regulated.
Turns red when exposed to light. Not suitable for functional perfumery: cannot be used for candles or shower gels.
Isoeugenol has two diastereomers with similar odors. It is precisely the mixture of these two isomers that is most commonly used in perfumery. The trans isomer is the most common in the mixture, as it is thermodynamically more stable.