The molecule is a galactosiduronic acid in which beta-D-galacturonic acid is linked glycosidically to a 3-aminopropyl group. It is a conjugate acid of a 3-aminopropyl beta-D-galactopyranosiduronate.
(2S,3R,4S,5R,6R)-6-(3-aminopropoxy)-3,4,5-trihydroxyoxane-2-carboxylic acid