54L
  -OEChem-05102419293D

 13 12  0     0  0  0  0  0  0999 V2000
    1.4420   -0.0320    0.0020 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.6330    1.1610   -0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.0340   -0.5690    0.0020 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.9570    0.5960   -0.0010 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.3320    0.0720   -0.0010 C   0  0  0  0  0  0  0  0  0  0  0  0
   -3.4290   -0.3470   -0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.1220   -1.1800   -0.8870 H   0  0  0  0  0  0  0  0  0  0  0  0
   -0.1230   -1.1770    0.8930 H   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8010    1.2080    0.8880 H   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8000    1.2050   -0.8920 H   0  0  0  0  0  0  0  0  0  0  0  0
   -4.4100   -0.7220   -0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    2.4840   -0.8780   -0.0020 O   0  0  0  0  0  0  0  0  0  0  0  0
    3.3680   -0.4870   -0.0020 H   0  0  0  0  0  0  0  0  0  0  0  0
  3  4  1  0  0  0  0
  4  5  1  0  0  0  0
  1  3  1  0  0  0  0
  1  2  2  0  0  0  0
  5  6  3  0  0  0  0
  3  7  1  0  0  0  0
  3  8  1  0  0  0  0
  4  9  1  0  0  0  0
  4 10  1  0  0  0  0
  6 11  1  0  0  0  0
  1 12  1  0  0  0  0
 12 13  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
C#CCCC(=O)O

> <OPENEYE_INCHI>
InChI=1S/C5H6O2/c1-2-3-4-5(6)7/h1H,3-4H2,(H,6,7)

> <OPENEYE_INCHIKEY>
MLBYLEUJXUBIJJ-UHFFFAOYSA-N

> <FORMULA>
C5H6O2

$$$$
