A sharp, highly volatile ketonic note reminiscent of acetone with a fruity-fermented lift — solventy and pungent on first sniff, with a faint sweet banana/apple facet underneath. Flashes off quickly leaving little residue.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 956.
Colorless liquid.
Soluble in water, miscible with alcohol, propylene glycol and oils.
Powerful and very diffusive, ethereal-fruity odor of 'heavy' type (meaning 'pungent', but not lasting).
Sweet, ethereal-fruity, Banana-like taste in concentrations below 50 ppm.
This ketone finds use in flavor compositions, particularly in the very 'radiant' fruit flavors, such as Pineapple and Banana. It is also used in various fruit complexes.
The normal concentration is about 12 to 35 ppm in the finished product.
1) by oxidation of 2-Pentanol. 2) from Methyl ethyl ethylene oxide, by heating. 3) from n-Propyl Magnesium bromide plus Acetaldehyde via the alcohol. 4) from 2-Pentene and Hydriodic acid via Methyl propyl carbinyl iodide.