Showing structure for [(1s,7s,9s,10s,16r,18r,19r)-1,3,10,14,19-pentahydroxy-7,18-dimethyl-5,12-dioxo-8,17-dioxapentacyclo[14.2.2.0²,¹⁵.0⁴,¹³.0⁶,¹¹]icosa-2(15),3,6(11),13-tetraen-9-yl]acetic acid