This is Lilial (p-t-butyl-alpha-methyl hydrocinnamic aldehyde) — a classic muguet/lily-of-the-valley aldehyde with a clean, slightly waxy floral character. Fresh and slightly green on the top, opening into a soft powdery-floral heart reminiscent of cyclamen and lily. Widely used as a modern floral aldehyde until its restriction under IFRA/EU cosmetic regulations.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 209.
Almost colorless oily liquid
Practically insoluble in water, soluble in alcohol and oils
Sweet, yet refreshing and intensely floral-green odor of considerable radiance, although at the same time quite tenacious
Widely used in soap perfumes and many cosmetic perfumes
Produced by condensation of para-tertiary-Butylbenzaldehyde in Methanol with Propionic aldehyde under alkaline conditions, followed by hydrogenation