CNc1nc(SC)nc2[nH]ncc12 mol4956 0_1 CNc1[nH+]c(SC)nc2[nH]ncc12 mol4956 1_1 CNc1nc(SC)[nH+]c2[nH]ncc12 mol4956 1_2 C[NH2+]c1nc(SC)nc2[nH]ncc12 mol4956 1_3 CNc1nc(SC)nc2[nH][nH+]cc12 mol4956 1_4 CNc1nc(SC)nc2[n-]ncc12 mol4956 -1_1