The molecule is a carbohydrate sulfate that is the 2-O-sulphate derivative of 5-dehydro-4-deoxy-D-glucuronic acid. It is a carbohydrate sulfate, an aldehyde and a monocarboxylic acid. It derives from a 5-dehydro-4-deoxy-D-glucuronic acid. It is a conjugate acid of a 5-dehydro-4-deoxy-2-O-sulfo-D-glucuronic acid(2-).
(4S,5R)-4-hydroxy-2,6-dioxo-5-sulfooxyhexanoic acid