InChI=1S/C26H28O16/c27-6-15-18(33)20(35)22(37)26(41-15)39-9-4-12(30)16-14(5-9)40-23(8-1-2-10(28)11(29)3-8)24(19(16)34)42-25-21(36)17(32)13(31)7-38-25/h1-5,13,15,17-18,20-22,25-33,35-37H,6-7H2