B53
  -OEChem-05102419513D

 16 16  0     0  0  0  0  0  0999 V2000
  -62.7630   58.0900  137.0780 O   0  0  0  0  0  0  0  0  0  0  0  0
  -63.0220   59.2700  136.9670 N   0  0  0  0  0  0  0  0  0  0  0  0
  -63.8070   59.8570  137.9290 C   0  0  0  0  0  0  0  0  0  0  0  0
  -64.4200   59.0890  139.0280 C   0  0  0  0  0  0  0  0  0  0  0  0
  -64.2480   57.8330  139.1340 O   0  0  0  0  0  0  0  0  0  0  0  0
  -64.0500   61.3090  137.8860 C   0  0  0  0  0  0  0  0  0  0  0  0
  -63.4930   62.0410  136.8950 N   0  0  0  0  0  0  0  0  0  0  0  0
  -64.8340   61.8730  138.8450 N   0  0  0  0  0  0  0  0  0  0  0  0
  -65.3900   61.1230  139.8280 C   0  0  0  0  0  0  0  0  0  0  0  0
  -66.1630   61.7230  140.7650 N   0  0  0  0  0  0  0  0  0  0  0  0
  -65.1940   59.8010  139.8770 N   0  0  0  0  0  0  0  0  0  0  0  0
  -63.3550   62.9800  137.2100 H   0  0  0  0  0  0  0  0  0  0  0  0
  -62.6120   61.6420  136.6410 H   0  0  0  0  0  0  0  0  0  0  0  0
  -66.4970   61.0420  141.4160 H   0  0  0  0  0  0  0  0  0  0  0  0
  -66.3690   62.7010  140.8000 H   0  0  0  0  0  0  0  0  0  0  0  0
  -65.6600   59.2960  140.6040 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

$$$$