InChI=1S/C21H20O15S/c22-6-15-16(27)17(28)18(29)21(35-15)34-14-4-8(23)3-13-9(14)5-12(26)19(33-13)7-1-10(24)20(11(25)2-7)36-37(30,31)32/h1-5,15-18,21-22,27-29H,6H2,(H4-,24,25,26,30,31,32)/p+1