InChI=1S/C21H24O8S/c1-27-18-7-3-5-15(11-18)9-10-17(22)14-20(23)21(29-30(24,25)26)13-16-6-4-8-19(12-16)28-2/h3-8,11-12,21H,9-10,13-14H2,1-2H3,(H,24,25,26)