The molecule is a ketogluconate that is the conjugate base of 5-dehydro-L-gluconic acid, obtained by deprotonation of the carboxy group. Major microspecies at pH 7.3 It is a ketogluconate and a monocarboxylic acid anion. It is a conjugate base of a 5-dehydro-L-gluconic acid.
(2S,3R,4R)-2,3,4,6-tetrahydroxy-5-oxohexanoate