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Sorbic acid is a crystalline acid with the chemical formula C6H8O2. It can be obtained from the unripe fruits of the mountain ash or synthesized. Sorbic acid and its potassium salt are widely used as preservatives in food products and packaging materials because they inhibit the growth of molds and other fungi. It is one of several organic compounds used for this purpose. Sorbate refers to a salt or ester of sorbic acid, such as potassium sorbate.1234

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