Showing structure for (2s,3r,4s,5r,6s)-3,4,5-trihydroxy-6-{[5-hydroxy-2-(4-hydroxyphenyl)-4-oxo-3-{[(2s,3r,4r,5r,6s)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}chromen-7-yl]oxy}oxane-2-carboxylic acid