Calcium propanoate or calcium propionate has the formula Ca(C2H5COO)2. It is the calcium salt of propanoic acid . it is White crystalline solid and slightly soluble in methanol, ethanol.
As a food additive, it is listed as E number 282 in the Codex Alimentarius. Calcium propanoate is used as a preservative in a wide variety of products, including but not limited to: bread, other baked goods, processed meat, whey, and other dairy products.
Calcium propanoate is used in bakery products as a mold inhibitor, typically at 0.1-0.4%