InChI=1S/C32H32O13/c1-17(33)2-3-18-6-11-22(12-7-18)43-32-30(45-31(41)20-14-23(35)27(38)24(36)15-20)29(40)28(39)25(44-32)16-42-26(37)13-8-19-4-9-21(34)10-5-19/h4-15,25,28-30,32,34-36,38-40H,2-3,16H2,1H3/b13-8+