InChI=1S/C12H21NO9S/c1-4(2-23-3-5(13)10(17)18)21-12-8(16)6(14)7(15)9(22-12)11(19)20/h4-9,12,14-16H,2-3,13H2,1H3,(H,17,18)(H,19,20)