InChI=1S/C25H28O16S/c26-9-16-19(28)20(29)21(30)24(39-16)40-23-18-14(15(10-37-23)22(31)32)7-8-25(18,33)11-38-17(27)6-3-12-1-4-13(5-2-12)41-42(34,35)36/h1-8,10,14,16,18-21,23-24,26,28-30,33H,9,11H2,(H,31,32)(H,34,35,36)/b6-3+