InChI=1S/C20H28O7S/c1-17(2)11-5-6-20-8-7-18(3,10-20)13(21)9-12(20)19(11,4)16(14(22)15(17)23)27-28(24,25)26/h7-8,11-12,15-16,23H,5-6,9-10H2,1-4H3,(H,24,25,26)