|propionic acid (prō'pē-ŏn'ĭk) Pronunciation Key
A liquid fatty acid found naturally in sweat and milk products and as a product of bacterial fermentation. It is also prepared synthetically from ethanol and carbon monoxide, and is used chiefly in the form of its propionates as a mold inhibitor in bread and as an ingredient in perfume. Chemical formula: C3H6O2.
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