163819
  -OEChem-02060822392D

 11 11  0     1  0  0  0  0  0999 V2000
    1.2100    1.4319    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.0544   -0.0351    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4366    1.4734    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -2.3801   -0.1277    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.3592   -0.0319    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.6193   -0.0319    0.0000 C   0  0  3  0  0  0  0  0  0  0  0  0
    0.3592   -0.9929    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.6193   -0.9929    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.2020    0.4454    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4366    0.4310    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.3073   -1.5692    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  9  2  0  0  0  0
  2  9  1  0  0  0  0
  3 10  2  0  0  0  0
  4 10  1  0  0  0  0
  5  6  1  0  0  0  0
  5  7  2  0  0  0  0
  5  9  1  0  0  0  0
  6  8  1  0  0  0  0
  6 10  1  0  0  0  0
  7  8  1  0  0  0  0
  7 11  1  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
163819

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
ChemIDplus

> <PUBCHEM_EXT_DATASOURCE_REGID>
004924543

> <PUBCHEM_SUBSTANCE_SYNONYM>
2-CYCLOBUTENE-1,2-DICARBOXYLIC ACID, 3-METHYL-
3-Methyl-2-cyclobutene-1,2-dicarboxylic acid
4-09-00-02887 (Beilstein Handbook Reference)
4924-54-3
BRN 2641861
USAF A-20165

> <PUBCHEM_GENERIC_REGISTRY_NAME>
4924-54-3

> <PUBCHEM_XREF_EXT_ID>
004924543

> <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=004924543

> <PUBCHEM_CID_ASSOCIATIONS>
21037  1

$$$$