InChI=1S/C21H26O7S/c1-26-20-13-15-5-3-4-6-16(28-29(23,24)25)9-7-14-8-10-19(22)17(11-14)18(12-15)21(20)27-2/h8,10-13,16,22H,3-7,9H2,1-2H3,(H,23,24,25)