Showing structure for [20-(carboxymethyl)-13,14,18,29,33,34-hexahydroxy-2,10,17,21,26,30-hexaoxo-5-(3,4,5-trihydroxybenzoyloxy)-3,6,9,16,22,25,31-heptaoxaheptacyclo[26.7.1.1¹¹,¹⁵.0⁴,²³.0⁷,²⁴.0³²,³⁶.0¹⁹,³⁷]heptatriaconta-1(35),11,13,15(37),32(36),33-hexaen-27-yl]acetic acid