Molecule 02Molecule 02 The molecule Ambroxan pure and absolute It is a crystal with a chemical structure identical to the ambrox derived from ambergris. For centuries ambergris was perhaps the most prized ingredient in perfumery. It is a somewhat mysterious substance expelled by the cachalot or sperm whale which only attains its fine scent after a long maturation floating in the ocean. Ambergris is rarely found these days, and the amber in a modern fragrance