Not a Perfume in not really a perfume but fragrant AMBROX in a flacon. C16 H28 O is formula of Ambroxan, the only key ingredient in this non-perfume. Ambrox was born in the 1950's in Firmenich as substitute for grey amber which was very expensive for a common use in compositions. Ambrox is typically used as one of base notes of compositions, while it has a leading role in this non-perfume. Not a Perfume is a provocative declaration which does not follow the rules of modern perfumery. Not a Perfume is based on contradictions, since its composition is created of molecules and is the only fragrance without allergens.