B53
  -OEChem-05102419303D

 16 16  0     0  0  0  0  0  0999 V2000
   -2.9390    0.3720    0.0550 O   0  0  0  0  0  0  0  0  0  0  0  0
   -2.1290   -0.5340   -0.0300 N   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8380   -0.2670   -0.0190 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.3360    1.1240   -0.0140 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.1020    2.0690   -0.0190 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.1700   -1.3420   -0.0050 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.2080   -2.6550   -0.0040 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.4560   -1.0050    0.0060 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.8530    0.2510    0.0040 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.1920    0.5030    0.0150 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.0010    1.3090   -0.0020 N   0  0  0  0  0  0  0  0  0  0  0  0
   -1.1460   -2.8900   -0.0850 H   0  0  0  0  0  0  0  0  0  0  0  0
    0.4610   -3.3520    0.0790 H   0  0  0  0  0  0  0  0  0  0  0  0
    3.8240   -0.2330    0.0230 H   0  0  0  0  0  0  0  0  0  0  0  0
    3.5130    1.4180    0.0140 H   0  0  0  0  0  0  0  0  0  0  0  0
    1.3590    2.2110    0.0010 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  2  0  0  0  0
  2  3  1  0  0  0  0
  3  4  1  0  0  0  0
  3  6  2  0  0  0  0
  4  5  2  0  0  0  0
  4 11  1  0  0  0  0
  6  7  1  0  0  0  0
  6  8  1  0  0  0  0
  7 12  1  0  0  0  0
  7 13  1  0  0  0  0
  8  9  2  0  0  0  0
  9 10  1  0  0  0  0
  9 11  1  0  0  0  0
 10 14  1  0  0  0  0
 10 15  1  0  0  0  0
 11 16  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
c1(c(nc([nH]c1=O)N)N)N=O

> <OPENEYE_INCHI>
InChI=1S/C4H5N5O2/c5-2-1(9-11)3(10)8-4(6)7-2/h(H5,5,6,7,8,10)

> <OPENEYE_INCHIKEY>
HVMRLFSFHWCUCG-UHFFFAOYSA-N

> <FORMULA>
C4H5N5O2

$$$$