FUM
  -OEChem-04192423153D

 12 11  0     0  0  0  0  0  0999 V2000
    2.9240   -0.8260    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.9020    0.0520   -0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.1260    1.2450   -0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.5100   -0.4370    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.5100    0.4370   -0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.9020   -0.0520    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.1260   -1.2450    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -2.9240    0.8260   -0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    3.8190   -0.4580    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    0.3100   -1.4990    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
   -0.3100    1.4990   -0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
   -3.8190    0.4580   -0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  1  9  1  0  0  0  0
  2  3  2  0  0  0  0
  2  4  1  0  0  0  0
  4  5  2  0  0  0  0
  4 10  1  0  0  0  0
  5  6  1  0  0  0  0
  5 11  1  0  0  0  0
  6  7  2  0  0  0  0
  6  8  1  0  0  0  0
  8 12  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
C(=C/C(=O)O)\C(=O)O

> <OPENEYE_INCHI>
InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1+

> <OPENEYE_INCHIKEY>
VZCYOOQTPOCHFL-OWOJBTEDSA-N

> <FORMULA>
C4H4O4

$$$$