C[NH2+]c1ccnc([S-])n1 mol4206 0_1 CNc1ccnc(S)n1 mol4206 0_2 CNc1ccnc(S)[nH+]1 mol4206 1_1 C[NH2+]c1ccnc(S)n1 mol4206 1_2 CNc1cc[nH+]c(S)n1 mol4206 1_3 CNc1ccnc([S-])n1 mol4206 -1_1