CSc1nc(C)c2ncn(C)c2n1 mol8295 0_1 CSc1nc2c(ncn2C)c(C)[nH+]1 mol8295 1_1 CSc1nc(C)c2ncn(C)c2[nH+]1 mol8295 1_2 CSc1nc(C)c2[nH+]cn(C)c2n1 mol8295 1_3