212156
  -OEChem-02060822402D

  4  4  0     0  0  0  0  0  0999 V2000
    5.0000    5.8250    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.8250    5.8250    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.0000    5.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.8250    5.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  2  0  0  0  0
  1  3  1  0  0  0  0
  2  4  1  0  0  0  0
  3  4  1  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
212156

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
ChemIDplus

> <PUBCHEM_EXT_DATASOURCE_REGID>
000822355

> <PUBCHEM_SUBSTANCE_SYNONYM>
822-35-5
Cyclobutene
EINECS 212-496-8

> <PUBCHEM_GENERIC_REGISTRY_NAME>
822-35-5

> <PUBCHEM_XREF_EXT_ID>
000822355

> <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=000822355

> <PUBCHEM_CID_ASSOCIATIONS>
69972  1

$$$$