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