11-Oxahexadecan-16-olide is an outstanding fixative and an exquisite musk odour with a pleasant note resembling Ambrette-seed oil. This musk is used in perfume compositions at concentrations of 0.5 % or higher, although lower concentrations are known to have had a perceptible effect. The use of this material in minute traces in beverages, chewing gum and other flavoured products is known, but the correct dosage in flavours is much more critical than in perfumes. The suggested use level is normally well below 0.1 ppm in the finished product and lowest in beverages.
