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. Formula: c22h38o7 molar mass: 414.533 gmol melting point: 116 °c iupac id: [(2s)-2-[(2r)-4,5-dihydroxy-3-oxo-2-furyl]-2-hydroxy-ethyl] hexadecanoate soluble in: ethanol appearance: white to yellowish colored powder