Add Spectra ( Help ). From Wikipedia Gluconic acid is an organic compound with molecular formula C 6 H 12 O 7 and condensed structural formula HOCH 2 (CHOH) 4 COOH. It is one of the 16 stereoisomers of 2,3,4,5,6-pentahydroxyhexanoic acid. In aqueous solution at neutral pH , gluconic acid forms