InChI=1S/C33H32O9/c1-16(2)4-7-21-24(35)9-5-18-13-28(42-31(18)21)19-11-26(37)29(27(38)12-19)22-10-17(3)15-33(41,30(22)32(39)40)23-8-6-20(34)14-25(23)36/h4-6,8-14,22,30,34-38,41H,7,15H2,1-3H3,(H,39,40)