InChI=1S/C21H20O15S/c22-7-2-1-6(3-8(7)23)10-4-9(24)12-15(26)18(29)16(27)13(20(12)35-10)21-19(30)17(28)14(25)11(36-21)5-34-37(31,32)33/h1-4,11,14,17,19,21-23,25-30H,5H2,(H,31,32,33)