The molecule is a carbohydrate acid derivative anion that is the conjugate base of mycophenolic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a mycophenolic acid O-acyl-glucuronide.
(2S,3S,4S,5R,6S)-3,4,5-trihydroxy-6-[(E)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1H-2-benzofuran-5-yl)-4-methylhex-4-enoyl]oxyoxane-2-carboxylate