The molecule is a hydroxy monocarboxylic acid anion resulting from the deprotonation of the carboxy group of 4-O-beta-D-glucosyl-trans-caffeic acid. The major specides at pH 7.3. It derives from a trans-caffeate. It is a conjugate base of a 4-O-beta-D-glucosyl-trans-caffeic acid.
5-[(E)-2-carboxyethenyl]-2-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenolate