InChI=1S/C26H28O17/c27-9-3-1-8(5-11(9)29)2-4-10(28)15-12(30)6-13(31)21(41-25-19(36)16(33)14(32)7-40-25)22(15)42-26-20(37)17(34)18(35)23(43-26)24(38)39/h1-6,14,16-20,23,25-27,29-37H,7H2,(H,38,39)