Musk

Deer musk trade is tightly restricted; nearly every musk note today is lab-made.

What it is: A classic blend perfumers build from several materials.
How perfumers build it: Galaxolide (musk)Habanolide (musk)Ethylene brassylate (musk)Muscenone (musk)Ambrettolide (musk)Helvetolide (musk)
Known in: Musc Ravageur (Frédéric Malle, 2000)
Worth knowing: Many people can't smell one musk molecule or another, so perfumers layer several to reach every nose.

Named by the house in 127 of the 352 perfumes read so far