The molecule is a ketoaldonic acid phosphate consisting of (2xi)-3-deoxy-beta-D-threo-hept-6-ulopyranosonic acid carrying a single phospho substituent at position 7. It is a conjugate acid of a (2xi)-3-deoxy-7-O-phosphonato-beta-D-threo-hept-6-ulopyranosonate.
(4R,5S,6S)-4,5,6-trihydroxy-6-(phosphonooxymethyl)oxane-2-carboxylic acid