The molecule is a carbohydrate acid derivative anion obtained by deprotonation of both carboxy groups of (S)-malyl N-acetyl-alpha-D-glucosaminide; major species at pH 7.3. It is a conjugate base of a (S)-malyl N-acetyl-alpha-D-glucosaminide.
(2S)-2-[(2R,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxybutanedioate