A1D76 a1d76 2-[(4R,5S,7R,25S,26R,29R,30S,31R)-13,14,15,18,19,20,21,31,35,36-decahydroxy-2,10,23,28,32-pentaoxo-5-(3,4,5-trihydroxybenzoyl)oxy-3,6,9,24,27,33-hexaoxaheptacyclo[28.7.1.04,25.07,26.011,16.017,22.034,38]octatriaconta-1(37),11,13,15,17(22),18,20,34(38),35-nonaen-29-yl]acetic acid A1D76