Anti-Fungal Agent

Undecylenic acid is an unsaturated carboxylic acid.
When Ricinoleic acid, an unsaturated fatty acid containing one - OH group , derived from Castor Oil, is pyrolyzed by heating in the absence of air, it breaks down to give Undecylenic acid and n - heptaldehyde .
It's anti - fungal properties are useful in cosmetics and pharmaceuticals .
Undecylenic acid and its aldehyde are used to formulate perfumes .
Undecylenic acid and its zinc salt are used for the treatment and prevention of superficial fungus infections of the skin , primarily tinea pedis as well as relieves itching , burning and irritation.