656523
  -OEChem-02060822452D

 10 10  0     0  0  0  0  0  0999 V2000
    0.1313   -1.4511    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.5022    1.3198    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.5195   -1.2492    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.4978   -0.4102    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.0000    0.4511    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.0000   -0.9489    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.0000    0.4511    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.0000    1.4511    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    0.4511    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    1.4511    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  6  2  0  0  0  0
  2  7  2  0  0  0  0
  3  6  1  0  0  0  0
  4  7  1  0  0  0  0
  5  6  1  0  0  0  0
  5  7  1  0  0  0  0
  5  8  1  0  0  0  0
  5  9  1  0  0  0  0
  8 10  1  0  0  0  0
  9 10  1  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
656523

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
ChemIDplus

> <PUBCHEM_EXT_DATASOURCE_REGID>
005445512

> <PUBCHEM_SUBSTANCE_SYNONYM>
1,1-Cyclobutanedicarboxylic acid
5445-51-2
EINECS 226-651-2
NSC 22073

> <PUBCHEM_GENERIC_REGISTRY_NAME>
5445-51-2

> <PUBCHEM_XREF_EXT_ID>
005445512

> <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=005445512

> <PUBCHEM_CID_ASSOCIATIONS>
2568  1

$$$$