The molecule is a delta-lactone that is D-galactono-1,4-lactone in which the hydroxy group at position 6 has been oxidised to the corresponding carboxylic acid. It is a delta-lactone and an aldarolactone. It derives from a D-galactono-1,4-lactone. It is a conjugate acid of a D-galactaro-1,4-lactone(1-).
(2S)-2-[(2R,3R,4R)-3,4-dihydroxy-5-oxooxolan-2-yl]-2-hydroxyacetic acid