InChI=1S/C11H15N5O4S/c1-21(19)2-5-7(17)8(18)11(20-5)16-4-15-6-9(12)13-3-14-10(6)16/h3-5,7-8,11,17-18H,2H2,1H3,(H2,12,13,14)