InChI=1S/C21H22O8S/c1-13(2)4-6-17(29-30(23,24)25)14(3)8-10-27-21-15-5-7-20(22)28-19(15)12-18-16(21)9-11-26-18/h4-5,7-9,11-12,17H,6,10H2,1-3H3,(H,23,24,25)