Ascorbic acid derivative and vitamin C preparation containing the same

摘要

A novel ascorbic acid derivative having both sufficiently improved stability and liposolubility, and facilitated cellular uptake. Also disclosed is a process for producing the derivative and a composition capable of effectively providing the action of vitamin C, for use in medical preparations, agricultural chemicals, animal drugs, foods, feeds or cosmetic preparations. The ascorbic acid derivative is a compound represented by the following formula (1) or a salt thereof: wherein R represents an acyl group having eleven or more carbon atoms and n is 0, 1 or 2.