InChI=1S/C15H22N2O8S/c1-22-10-7-9(8-11(23-2)13(10)25-26(19,20)21)12-14(24-12)15(18)17-6-4-3-5-16/h7-8,12,14H,3-6,16H2,1-2H3,(H,17,18)(H,19,20,21)