InChI=1/C12H13N5O3S/c1-17-4-2-3-7(17)11(20)15-10(19)6-21-12-14-8(13)5-9(18)16-12/h2-5H,6H2,1H3,(H,15,19,20)(H3,13,14,16,18)/f/h15-16H,13H2 3C907DC46BCD1B5E