InChI=1S/C21H22O8S/c1-21(12-29-30(23,24)25)18-6-5-16(20(26-2)17(18)7-8-28-21)14-9-13-3-4-15(22)10-19(13)27-11-14/h3-8,10,14,22H,9,11-12H2,1-2H3,(H,23,24,25)