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