InChI=1S/C21H32O7S/c1-11(22)21-17(27-21)9-15-14-5-4-12-8-13(28-29(24,25)26)6-7-19(12,2)18(14)16(23)10-20(15,21)3/h12-18,23H,4-10H2,1-3H3,(H,24,25,26)