Pear ester

Say itPear ES-ter

Ripe Williams pear, green skin and sweet juicy flesh, slightly waxy.

What it is: A molecule made in a lab.
Where it comes from: the character molecule of Bartlett (Williams) pears
When you smell it: Top notes: the first minutes.
What perfumers do with it: Gives unmistakable ripe-pear realism to fruity florals and gourmand pear accords.
Worth knowing: Orchard growers use it as a lure in traps for codling moth, whose caterpillars bore into pears and apples.
Also called: Ethyl (2E,4Z)-decadienoate; ethyl decadienoate

Not on the label of any of the 232 perfumes read so far.