InChI=1/C12H11N5O3S/c1-7-4-5-14-12(15-7)21-10-3-2-8(17(19)20)6-9(10)11(13)16-18/h2-6,18H,1H3,(H2,13,16)/f/h13H2/b16-11- E26C92F38102EBDE