718919
  -OEChem-02060822472D

  6  6  0     0  0  0  0  0  0999 V2000
    0.0000    1.8131    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.1561    1.8621    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.5880    0.9801    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.5681    0.9801    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.5880    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.5681    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  3  2  0  0  0  0
  2  4  2  0  0  0  0
  3  4  1  0  0  0  0
  3  5  1  0  0  0  0
  4  6  1  0  0  0  0
  5  6  2  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
718919

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
ChemIDplus

> <PUBCHEM_EXT_DATASOURCE_REGID>
032936746

> <PUBCHEM_SUBSTANCE_SYNONYM>
3-Cyclobutene-1,2-dione
32936-74-6

> <PUBCHEM_GENERIC_REGISTRY_NAME>
32936-74-6

> <PUBCHEM_XREF_EXT_ID>
032936746

> <PUBCHEM_EXT_DATASOURCE_URL>
http://chem.sis.nlm.nih.gov/chemidplus/

> <PUBCHEM_EXT_SUBSTANCE_URL>
http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced&regno=032936746

> <PUBCHEM_CID_ASSOCIATIONS>
141753  1

$$$$