InChI=1S/C19H24O8S/c1-9-7-18-8-10(9)3-4-11(18)19-12(27-28(23,24)25)5-6-17(2,16(22)26-19)14(19)13(18)15(20)21/h10-14H,1,3-8H2,2H3,(H,20,21)(H,23,24,25)