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