Also known as Aldehyde C-12 MNA (methylnonyl acetaldehyde). A powerful fatty-aldehydic material with a citrus-peel, orange-like character over a waxy, slightly soapy floral undertone. Diffusive and sparkling in the topnotes, softening into a clean waxy floralcy on the drydown.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 915.
Colorless liquid.
Almost insoluble in water, soluble in alcohol and oils.
Powerful and diffusive, dry-Ambrelike, somewhat herbaceous odor of considerable tenacity.
Dry-fruity taste with Honey-Nut-like notes.
This aldehyde is probably one of the most preferred perfumery aldehydes with respect to aldehydic topnote. It blends very well with Galbanum, the Hexenyl family or the Methyl phenyl carbinyl esters, the Methyl-ionones or with Oakmoss. The combination of this aldehyde with Galbanum, Oakmoss and discretely fruity notes form one of the most frequently used characters of modern or recent perfumes.
The aldehyde finds a little use — in mere traces - in flavor compositions, mainly in Citrus complexes, Honey, Coconut, Apricot, Pineapple, etc. or in fruit blends.
1) from Methyl nonyl ketone plus Ethyl monochloroacetate and Sodium ethylate. 2) from alpha-Nonyl acrolein by hydrogenation.