CNc1ncnc2c1nc(C)c(=O)n2C    mol26263    0_1
CNc1ncnc2c1nc(C)c(=[OH+])n2C    mol26263    1_1
C[NH2+]c1ncnc2c1nc(C)c(=O)n2C    mol26263    1_2
CNc1ncnc2c1[nH+]c(C)c(=O)n2C    mol26263    1_3
CNc1[nH+]cnc2c1nc(C)c(=O)n2C    mol26263    1_4
CNc1nc[nH+]c2c1nc(C)c(=O)n2C    mol26263    1_5