Sugar acid
In organic chemistry, a sugar acid or acidic sugar is a monosaccharide with a carboxyl group at one end or both ends of its chain.
Main classes of sugar acids include:
- Aldonic acids, in which the aldehyde group located at the initial end of an aldose is oxidized.
- Ulosonic acids, in which the hydroxymethyl group at the initial end of a 2-ketose is oxidized creating an α-ketoacid.
- Uronic acids, in which the group at the terminal end of an aldose or ketose is oxidized.
- Aldaric acids, in which both ends of an aldose are oxidized.
Examples
- Aldonic acids
- * Glyceric acid
- * Xylonic acid
- * Gluconic acid
- * Ascorbic acid
- Ulosonic acids
- * Neuraminic acid
- * Ketodeoxyoctulosonic acid
- Uronic acids
- * Glucuronic acid
- * Galacturonic acid
- * Iduronic acid
- Aldaric acids
- * Tartaric acid
- * meso-Galactaric acid
- * D-Glucaric acid