The molecule is a monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of mycophenolic acid. It is a conjugate base of a mycophenolic acid.
(E)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1H-2-benzofuran-5-yl)-4-methylhex-4-enoate