The molecule is a monocarboxylic acid anion resulting from the deprotonation of the carboxy group of 4-O-beta-D-glucosyl-trans-sinapic acid. The major species at pH 7.3. It is a conjugate base of a 4-O-beta-D-glucosyl-trans-sinapic acid.
(E)-3-[3,5-dimethoxy-4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]prop-2-enoate