InChI=1S/C25H28O18/c26-4-8-12(30)15(33)18(36)22(41-8)10-14(32)16(34)13(31)9(11(29)5-1-2-6(27)7(28)3-5)21(10)42-25-20(38)17(35)19(37)23(43-25)24(39)40/h1-3,8,12,15,17-20,22-23,25-28,30-38H,4H2,(H,39,40)