CSc1nc(C)c2c(ncn2C)n1    mol8293    0_1
CSc1nc(C)c2c(n1)[nH+]cn2C    mol8293    1_1
CSc1nc(C)c2c(ncn2C)[nH+]1    mol8293    1_2
CSc1nc2ncn(C)c2c(C)[nH+]1    mol8293    1_3