Stabilized derivatives of ascorbic aicd
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United States of America Patent
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Issued Date -
Jul 19, 2007
app pub date -
Apr 21, 2004
filing date -
Apr 21, 2003
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Abandoned
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Abstract
Ascorbic acid derivatives of the general formula 1: wherein R<1> is a C2-C22 acyl group, an amino acid group, or a C1-C17 alkyl group; R<2> is ammonium or a metal cation; and each of R<3> or R<4>, independently, is hydrogen, a C2-C22 acyl group, an amino acid residue, or a C1-C17 alkyl group, are more stable than ascorbic acid and can be used as a source of vitamin C in pharmaceutical, nutraceutical and cosmetic compositions.
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