The molecule is the conjugate base of 3-[(5S,6R)-5,6-dihydroxycyclohexa-1,3-dienyl]acrylic acid; major species at pH 7.3. It is a conjugate base of a 3-[(5S,6R)-5,6-dihydroxycyclohexa-1,3-dienyl]acrylic acid.
(E)-3-[(5S,6R)-5,6-dihydroxycyclohexa-1,3-dien-1-yl]prop-2-enoate