InChI=1S/C16H22N4O4S/c1-9-4-3-5-20(9)15(22)12(6-11-7-25-8-17-11)18-14(21)13-10(2)24-16(23)19-13/h7-10,12-13H,3-6H2,1-2H3,(H,18,21)(H,19,23)/t9-,10+,12+,13+/m1/s1