208128
  -OEChem-02060822402D

  5  4  0     0  0  0  0  0  0999 V2000
   -2.6042   -0.4458    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.8917   -0.0333    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -3.3167   -0.0333    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.1792   -0.4458    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -4.0292   -0.4458    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  5  1  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
208128

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
ChemIDplus

> <PUBCHEM_EXT_DATASOURCE_REGID>
000109682

> <PUBCHEM_SUBSTANCE_SYNONYM>
109-68-2
2-Pentene
3-Pentene
EINECS 203-695-0
NSC 7894
beta-n-Amylene
sym-Methylethylethylene

> <PUBCHEM_GENERIC_REGISTRY_NAME>
109-68-2

> <PUBCHEM_XREF_EXT_ID>
000109682

> <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=000109682

> <PUBCHEM_CID_ASSOCIATIONS>
5326161  1

$$$$