Calcium sorbate is a polyunsaturated fatty acid salt.
Calcium sorbate is used to inhibit molds, yeasts, and fungi in many foods, such as cheese, wine, and baked goods. It is the calcium salt of sorbic acid.
sorbic acid: InChI=1/C6H8O2/c1-2-3-4-5-6(7)8/h2-5H,1H3,(H,7,8)/b3-2+,5-4+/f/h7H