The molecule is an aldarolactone formed via intramolecular cyclocondensation of galactaric acid. It has a role as a bacterial xenobiotic metabolite. It is an aldarolactone and a carbohydrate acid. It derives from a galactaric acid. It is a conjugate acid of a D-galactaro-1,5-lactone(1-).
(2S,3R,4S,5R)-3,4,5-trihydroxy-6-oxooxane-2-carboxylic acid