Mycophenolic Acid O-Desmethyl Impurity

;|(4E)-6-(1,3-Dihydro-4,6-dihydroxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoic Acid|(4E)-6-(1,3-Dihydro-4,6-dihydroxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoic acid ;;|Dihydroxy Analogue of Mycophenolic Acid;Mycophenolic Acid O-Desmethyl Impurity ; (4E)-6-(1,3-Dihydro-4,6-dihydroxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoic acid ;