2E,6Z-nonadienal (Cucumber CHO)

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.

Tags

More like this

Perfumery aldehydes can often be replaced with the corresponding nitriles affording much greater reactive stability. Perhaps somebody should give a sniff.