Sorry, but you're hearing about another odorant today:
2E,6Z-nonadienal is an aldehyde responsible for a good chunk of the ineffable aroma of fresh cucumber. Being an aldehyde, it's a bit of a fragile molecule, and doesn't last long in the pickling process, as this blurb explains.

Molecules: You'd better learn to live with them.
Comments
Ketone?
It has alliteration, but still...
Cucumber Carbonyl works :P
Posted by: Snarfevs | October 12, 2006 1:37 AM
Perfumery aldehydes can often be replaced with the corresponding nitriles affording much greater reactive stability. Perhaps somebody should give a sniff.
Posted by: Uncle Al
| October 12, 2006 12:21 PM
Duly noted; thanks.
Posted by: MoTD | October 12, 2006 3:38 PM
looks like uncle al was right.
Posted by: MoTD | October 12, 2006 3:43 PM