InChI=1S/C14H20N2O8S/c1-23-13-6-9(2-4-12(13)24-25(20,21)22)3-5-14(19)16-8-11(18)10(17)7-15/h2-6,10-11,17-18H,7-8,15H2,1H3,(H,16,19)(H,20,21,22)