A protected acetal form of phenylacetaldehyde — softer, greener and less pungent than the free aldehyde. Smells of hyacinth and honeyed rose petals with a leafy green facet, opening slowly and lasting longer than PAA itself without the harsh, oxidised sharpness.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1081.
Colorless oily liquid.
Almost insoluble in water, soluble in alcohol and oils.
Earthy-green, pungent floral odor of moderate to poor tenacity.
Although this odor can be classified as a Hyacinth, it has not become very popular. There are similar acetals with Hyacinth type odor, floral, green and earthy, and some of them are superior in performance.
Produced by condensation of Phenylacetaldehyde with 1,2-Butylene glycol.