A green-floral aromachemical with a clear hyacinth character — leafy, watery-green and softly aldehydic, milder and more stable than free hydratropaldehyde. Sits in the heart with a fresh, slightly herbal cast that supports white and green florals without the sharp edge of the parent aldehyde.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 704.
Colorless oily liquid.
Almost insoluble in water, soluble in alcohol and oils.
Powerful, but relatively soft, green-herbal, earthy-green odor, reminiscent of Reseda (Mignonette).
The subject cyclic Acetal is used in perfume compositions to introduce the earthy, almost root-like greenness which is often symbolized in the name Mignonette, a fragrance type which is created by the perfumer and not obtained from Nature.
Produced by condensation of Hydratropaldehyde with 2-Methylpentane 2,4-diol (a chemical obtained in the Acetone reduction process). Mineral acid is used as condensing agent.