A gentler, fruitier take on heptanal — the acetal form softens the sharp fatty-aldehyde bite into a green, slightly waxy fruit note with hints of unripe apple, pear skin and a whisper of citrus peel. More stable and rounded than the free aldehyde, with a clean, airy character.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 620.
Colorless liquid.
Almost insoluble in water, soluble in alcohol and oils.
Fresh, herbaceous, winey and foliage-green odor, sweeter and much less penetrating than that of the aldehyde.
This Acetal has been suggested for use in Jasmin bases to introduce the winey-green note that forms part of the very complex topnote of Jasmin.
It is occasionally used in flavor compositions for imitation Lemon, Brandy, Cognac, etc., normally in mere traces.
Produced from Heptaldehyde and Ethylalcohol with a dehydrating agent. Another method uses Heptaldehyde plus Formiminoethylether hydrochloride.