InChI=1S/C19H20O15S/c20-4-8-18(34-35(30,31)32)16(28)17(29)19(33-8)10-12(24)9(13(25)15(27)14(10)26)11(23)5-1-2-6(21)7(22)3-5/h1-3,8,16-22,24-29H,4H2,(H,30,31,32)