potassium undecylenate

potassium undecylenate

[pə′tas·ē·əm ‚ən‚des·ə′le‚nāt] (organic chemistry) CH2:CH(CH2)8-COOK A white, water-soluble powder, decomposing at about 250°C; used in pharmaceuticals and cosmetics as a fungistat and bacteriostat.