Benzophenone

Description and usage notes:

A very mild-smelling solid that comes as white flakes. A good fixative for rose and other floral notes that is also very helpful in hot applications like candles and bath oils.

Arctander describes it like this: “Used extensively in perfumes for sweet-woody-geranium-like notes in low-cost fragrances, soap perfumes, etc. Useful as a fixative.

It has an extremely low vapor pressure at room temperature, and its effect upon the fragrance is only perceptible and apparent in mixtures with lower boiling items or at higher temperatures.”