Propylparaben is a cosmetic preservative rather than a fragrance material — it is essentially odorless in use, with at most a very faint waxy or slightly phenolic character detectable at high concentration. It contributes no meaningful olfactory note to a formula.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1191.
White or colorless crystals.
Soluble in water, soluble in alcohol and most oils.
This material is virtually odorless, and the aqueous solution is practically tasteless.
It is mentioned in this work because it is a relatively important preservative and fungistat in food products and flavor compositions.
The concentration used in beverages, candy, baked goods etc. is about 30 to 100 ppm, while in ice cream the concentration may be as high as 130 ppm.
Potassium salicylate yields by heating para-Hydroxybenzoic acid, from which the esters are prepared by conventional methods.