Methyl nonyl carbinol (undecan-2-ol) has a soft, waxy-citrus odor reminiscent of orange peel and fatty aldehydes, with a mild floral-green nuance. It bridges citrus top notes with creamy floral hearts, adding a natural-smelling fatty roundness rather than a sharp aldehydic bite.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 918.
Colorless viscous-oily liquid.
Very slightly soluble in water, soluble in alcohol and oils.
Fatty-oily-fruity odor with a relatively refreshing, almost citrusy note, distinctly different from the primary-Undecanol.
Its taste is more pleasant than its odor, the fatty notes apparently subdued and the fruity-nutty, sweeter notes enhanced at concentrations around 10 ppm.
This alcohol finds limited use in flavor compositions, often in imitation Coconut, sometimes traces in Rum or Brandy flavors.
1) by hydrogenation of Methyl nonyl ketone. 2) from Decanoic acid and Acetic acid by heating their vapors over Thorium oxide at about 450°C. The resulting ketone is subsequently hydrogenated to the alcohol.