Ascorbyl palmitate is an ester formed from ascorbic acid and palmitic acid creating a fat-soluble form of vitamin C. In addition to its use as a source of vitamin C, it is also used as an antioxidant food additive (E number E304).

It is approved for use as a food additive in the EU,[1] the U.S.,[2] Canada,[3] Australia, and New Zealand.

[4] Ascorbyl palmitate is also marketed as "vitamin C ester".

It is synthesized by acylation of vitamin C using different acyl donors.

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