The molecule is a dicarboxylic acid anion obtained by deprotonation of the two carboxy groups and the 7-hydroxy group of salvianin. It is a conjugate base of a salvianin.
3-[[(2R,3S,4R,5R,6S)-3-(2-carboxylatoacetyl)oxy-6-[3-[(2S,3R,4S,5S,6R)-6-[[(E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxymethyl]-3,4,5-trihydroxyoxan-2-yl]oxy-2-(4-hydroxyphenyl)-7-oxochromen-5-yl]oxy-4,5-dihydroxyoxan-2-yl]methoxy]-3-oxopropanoate