Calone

Say itKAL-ohn

Watermelon rind, sea spray, oyster shell; cool and airy.

What it is: A molecule made in a lab, first made by Pfizer in 1966.
When you smell it: Heart: as it settles.
What perfumers do with it: The founding 'sea breeze' molecule of 1990s aquatics; at traces it lifts and freshens florals
Worth knowing: Found by Pfizer chemists during tranquilizer research; the name is a company code: Camilli, Albert & Laloue plus ketONE.
Known in: Escape (Calvin Klein, 1991); L'Eau d'Issey (Issey Miyake, 1992)
Also called: Calone 1951 (Firmenich trade name); watermelon ketone; methylbenzodioxepinone

On the label of 1 of the 1080 perfumes read so far

Named by the house, not on the label, in 3

Sources