C6H4N4
APtclcactv03241713332D 0   0.00000     0.00000
 
 14 15  0  0  0  0  0  0  0  0999 V2000
    5.5321    0.5208    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.5321   -0.5208    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    4.6260   -1.0347    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    3.7321   -0.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.8660   -1.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.0000   -0.5000    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    2.0000    0.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.8660    1.0000    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    3.7321    0.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    4.6260    1.0347    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    6.0678    0.8329    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    6.0678   -0.8329    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    2.8660   -1.6200    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    1.4631    0.8100    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  2  3  2  0  0  0  0
  3  4  1  0  0  0  0
  4  5  1  0  0  0  0
  5  6  2  0  0  0  0
  6  7  1  0  0  0  0
  7  8  2  0  0  0  0
  8  9  1  0  0  0  0
  9 10  1  0  0  0  0
  1 10  2  0  0  0  0
  4  9  2  0  0  0  0
  1 11  1  0  0  0  0
  2 12  1  0  0  0  0
  5 13  1  0  0  0  0
  7 14  1  0  0  0  0
M  END
> <UNIQUE_SMILES>
C1=NC2=C(N=C1)N=CN=C2

> <USER_SUPPLIED_SMILES>
C1(C=NC2(C=NC=NC(N=1)=2))

$$$$
