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