161026
  -OEChem-02060822392D

  8  8  0     0  0  0  0  0  0999 V2000
    0.0034   -2.6828    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -2.6621   -0.0276    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.6552    0.0414    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.0034    2.6345    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.0034   -1.1172    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0931   -0.0276    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.0897    0.0414    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0034    1.1414    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>
161026

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
ChemIDplus

> <PUBCHEM_EXT_DATASOURCE_REGID>
002892515

> <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-
4-08-00-02701 (Beilstein Handbook Reference)
94592-78-6
AI3-61444
BRN 0774275
CCRIS 6793
CYCLOBUTENE-1,2-DIONE, 3,4-DIHYDROXY-
Cyclobutenedione, dihydroxy- (8CI)
Dihydroxycyclobutenedione
EINECS 220-761-4
NSC 125692
Quadratic acid
Squaric acid

> <PUBCHEM_GENERIC_REGISTRY_NAME>
2892-51-5
94592-78-6

> <PUBCHEM_XREF_EXT_ID>
002892515

> <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=002892515

> <PUBCHEM_CID_ASSOCIATIONS>
17913  1

$$$$