CSc1nc2cnccc2[nH]1    mol7983    0_1
CSc1[nH]c2ccncc2[nH+]1    mol7983    1_1
CSc1nc2c[nH+]ccc2[nH]1    mol7983    1_2
CSc1nc2cnccc2[n-]1    mol7983    -1_1