InChI=1S/C19H16O17S/c20-5-1-3-8(14(9(5)22)36-37(30,31)32)7-4(2-6(21)13(7)33-17(3)28)18(29)35-19-12(25)10(23)11(24)15(34-19)16(26)27/h1,4,10-12,15,19-20,22-25H,2H2,(H,26,27)(H,30,31,32)