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