Melozone

Say itMEL-uh-zohn

Watery green melon, fresh air, dewy aldehydic glow.

What it is: A molecule made in a lab.
When you smell it: Top notes: the first minutes.
What perfumers do with it: Aldehydic radiance without soapiness; makes green-floral and aquatic accords feel natural
Also called: melon carboxaldehyde (CAS 30772-79-3)

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

Sources