InChI=1S/C12H20N2O11S/c15-7(11(18)19)1-3-13-9(12(20)21)8(25-26(22,23)24)5-14-4-2-6(14)10(16)17/h6-9,13,15H,1-5H2,(H,16,17)(H,18,19)(H,20,21)(H,22,23,24)