InChI=1S/C8H11N3O6S/c1-4-2-5-3-10(6(4)7(9)12)8(13)11(5)17-18(14,15)16/h2,5-6H,3H2,1H3,(H2,9,12)(H,14,15,16)/t5-,6+/m1/s1