The molecule is a carbohydrate acid derivative that is alpha-L-iduronic acid in which the hydroxy group at position 2 has been converted into the correspondinghydrogen sullfate derivative. It is a carbohydrate sulfate and a carbohydrate acid derivative.
(2R,3S,4S,5R,6R)-3,4,6-trihydroxy-5-sulfooxyoxane-2-carboxylic acid