KC3H5O2

KC3H5O2 is the chemical formula for potassium propionate. It is the potassium salt of propionic acid, which is a naturally occurring organic compound. Potassium propionate is a white crystalline solid that is soluble in water. It is often used as a food preservative, particularly in baked goods, to inhibit the growth of mold and bacteria. This preservative action is due to the propionate anion, which can interfere with microbial metabolism. In addition to its use in food, potassium propionate can also be found in some animal feed and in pharmaceutical applications. It is generally recognized as safe (GRAS) by regulatory bodies when used within specified limits in food products. The compound's chemical structure consists of a potassium cation (K+) and a propionate anion (C3H5O2-). Propionic acid itself is a three-carbon carboxylic acid.