417997
  -OEChem-03010813462D

  8  8  0     0  0  0  0  0  0999 V2000
   -0.8374   -0.9154    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.0275   -0.9104    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8125    0.8705    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.9975    0.8605    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.2874   -0.3655    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.4824   -0.3655    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.2874    0.3455    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.4824    0.3455    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  5  2  0  0  0  0
  2  6  2  0  0  0  0
  3  7  1  0  0  0  0
  4  8  1  0  0  0  0
  5  6  1  0  0  0  0
  5  7  1  0  0  0  0
  6  8  1  0  0  0  0
  7  8  2  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
417997

> <PUBCHEM_SUBSTANCE_VERSION>
2

> <PUBCHEM_EXT_DATASOURCE_NAME>
DTP/NCI

> <PUBCHEM_EXT_DATASOURCE_REGID>
125692

> <PUBCHEM_SUBSTANCE_COMMENT>
DTP/NCI from molfile.  Release-June 2007.
Structure Evaluation:Consistent with Molecular Formula.
Deposition record created from database webdb on host dtpiv1.ncifcrf.gov on Feb 22, 2008

> <PUBCHEM_SUBSTANCE_SYNONYM>
1,2-Dihydroxycyclobutene-3,4-dione
1,2-Diketo-3,4-dihydroxycyclobutene
2892-51-5
3,4-Dihydroxy-3-cyclobutene-1,2-dione
3,4-Dihydroxy-cyclobutene-1,2-dione
3-Cyclobutene-1,2-dione, 3,4-dihydroxy-
Cyclobutene-1,2-dione, 3,4-dihydroxy-
Cyclobutenedione, dihydroxy-
NSC125692
Quadratic acid
Squaric acid
WLN: L4VVTJ CQ DQ

> <PUBCHEM_GENERIC_REGISTRY_NAME>
2892-51-5

> <PUBCHEM_XREF_EXT_ID>
125692

> <PUBCHEM_EXT_DATASOURCE_URL>
http://dtp.nci.nih.gov/

> <PUBCHEM_EXT_SUBSTANCE_URL>
http://dtp.nci.nih.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=125692

> <PUBCHEM_CID_ASSOCIATIONS>
17913  1

$$$$