A softer, rounder version of aldehyde C-11 (methyl nonyl acetaldehyde) — the dimethyl acetal form tames the sharp fatty-waxy bite into a smoother, cleaner aldehydic-citrus effect with orange-peel and slightly floral facets. It reads fresh and sparkling on top, with a mild soapy-waxy trail as it develops.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 916.
Colorless liquid.
Almost insoluble in water, soluble in alcohol and oils.
Refreshing and lemony-green odor of moderate tenacity.
This acetal is not often offered under its proper chemical name, but it finds use as a 'captive' perfume chemical in several specialties where it may form part of the topnote complex in citrus bases, aldehydic-citrusy complexes, etc.
Produced by condensation of methyl nonyl acetaldehyde with methanol, using dry hydrogen chloride as condensing agent.