InChI=1S/C15H20N2O6S/c18-14-3-1-2-12-9-4-10(8-16(12)14)13-5-11(23-24(20,21)22)6-15(19)17(13)7-9/h1-3,9-11,13,15,19H,4-8H2,(H,20,21,22)