Aldehyde C-12 MNA

Say itAL-dih-hyde see-TWELV em-en-AY

Dry, clean aldehyde with ambergris-like warmth, incense and fresh snowy air.

What it is: A molecule made in a lab.
When you smell it: Top notes: when you spray it.
What perfumers do with it: One of the best-performing aldehydes; lifts colognes and gives aldehydic florals their cool, radiant sheen.
Worth knowing: Houbigant used it in Quelques Fleurs in 1912, nine years before Chanel No. 5 made aldehydes famous.
Known in: Quelques Fleurs (Houbigant, 1912); Chanel No. 5 (Chanel, 1921)
Also called: 2-methylundecanal; methyl nonyl acetaldehyde

Not on the label of any of the 1080 perfumes read so far.

Sources