InChI=1S/C27H28O18/c28-6-11-13(30)16(33)20(37)27(43-11)44-23-10(42-26-21(38)17(34)19(36)24(45-26)25(39)40)5-9-12(15(23)32)14(31)18(35)22(41-9)7-1-3-8(29)4-2-7/h1-5,11,13,16-17,19-21,24,26-30,32-38H,6H2,(H,39,40)