54L
  -OEChem-05172421143D

 13 12  0     0  0  0  0  0  0999 V2000
   15.4490 -138.3800   23.6790 C   0  0  0  0  0  0  0  0  0  0  0  0
   15.1080 -137.7610   24.6870 O   0  0  0  0  0  0  0  0  0  0  0  0
   16.5390 -139.4180   23.7310 C   0  0  0  0  0  0  0  0  0  0  0  0
   17.6800 -138.7800   22.9450 C   0  0  0  0  0  0  0  0  0  0  0  0
   18.1860 -137.5760   23.7370 C   0  0  0  0  0  0  0  0  0  0  0  0
   18.6290 -136.6470   24.3690 C   0  0  0  0  0  0  0  0  0  0  0  0
   16.2120 -140.3550   23.2570 H   0  0  0  0  0  0  0  0  0  0  0  0
   16.8410 -139.6180   24.7690 H   0  0  0  0  0  0  0  0  0  0  0  0
   18.4940 -139.5080   22.8120 H   0  0  0  0  0  0  0  0  0  0  0  0
   17.3170 -138.4520   21.9600 H   0  0  0  0  0  0  0  0  0  0  0  0
   19.0180 -135.8320   24.9240 H   0  0  0  0  0  0  0  0  0  0  0  0
   14.9090 -138.2240   22.4650 O   0  0  0  0  0  0  0  0  0  0  0  0
   14.2260 -137.5650   22.5040 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

$$$$