InChI=1S/C19H20O12S/c20-3-4-29-16-2-1-11(8-17(16)30-5-6-31-32(26,27)28)7-15(24)19(25)18-13(22)9-12(21)10-14(18)23/h1-2,8-10,20-23H,3-7H2,(H,26,27,28)