Methyl heptyl ketone (2-nonanone) has a fresh, fruity-herbal odor with a slightly fatty, waxy undertone reminiscent of unripe pear, melon rind, and cheese-like nuances. It carries a mild citrus-green freshness that softens quickly into a creamy ketonic warmth.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 879.
Colorless oily liquid.
Insoluble in water, soluble in alcohol and oils.
Fruity-floral, slightly fatty and herbaceous odor of moderate to poor tenacity.
This ketone finds some use in perfume compositions as a powerful ingredient in Lavender compositions, in Citrus cologne types and in variations of New Mown Hay, etc.
It finds also some use in flavor compositions, e.g. in imitation Rose and Tea, in fruit complexes or various berry compositions.
1) by Grignard type synthesis from Octyl magnesium bromide with Ethyl formate or ortho-Formic ester. 2) by oxidation of secondary-Nonylalcohol.