InChI=1S/C20H18O15S/c21-6-1-5-9(2-7(6)22)33-10-3-8(23)13(17(28)14(10)15(5)26)19-20(35-36(30,31)32)18(29)16(27)11(34-19)4-12(24)25/h1-3,11,16,18-23,27-29H,4H2,(H,24,25)(H,30,31,32)