InChI=1/C16H18N4O4S/c1-16(2,3)19-14(11-8-25(24)9-12(11)18-19)17-15(21)10-6-4-5-7-13(10)20(22)23/h4-7H,8-9H2,1-3H3,(H,17,21)/t25-/m0/s1/f/h17H 7BDAEE8DBE24CB9C