CNc1nc(C)c(C)nc1C(N)=O    mol3980    0_1
CNc1nc(C)c(C)[nH+]c1C(N)=O    mol3980    1_1
CNc1[nH+]c(C)c(C)nc1C(N)=O    mol3980    1_2
C[NH2+]c1nc(C)c(C)nc1C(N)=O    mol3980    1_3