InChI=1S/C21H20O16S/c22-5-11-14(25)17(28)19(30)21(36-11)35-10-4-9-12(15(26)13(10)24)16(27)18(29)20(34-9)6-1-2-7(23)8(3-6)37-38(31,32)33/h1-4,11,14,17,19,21-26,28-30H,5H2,(H,31,32,33)