Marvin  07061011572D          

  8  8  0  0  0  0            999 V2000
    0.0000    0.5834    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.5834    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.5834    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000   -0.5834    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4081    0.0000    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    1.4081    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.4081    0.0000    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0
    0.0000   -1.4081    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0
  5  2  2  0  0  0  0
  2  4  1  0  0  0  0
  8  4  1  0  0  0  0
  4  3  2  0  0  0  0
  7  3  1  0  0  0  0
  1  3  1  0  0  0  0
  2  1  1  0  0  0  0
  6  1  2  0  0  0  0
M  CHG  2   7  -1   8  -1
M  END
> <ID>
CHEBI:59712

> <NAME>
squarate

> <DEFINITION>
A carbon oxoanion which is the dianion obtained by the deprotonation of the hydroxy group of hydrogensquarate.

> <STAR>
3

> <SYNONYM>
squarate(2-); squarate dianion

> <IUPAC_NAME>
3,4-dioxocyclobut-1-ene-1,2-diolate

> <FORMULA>
C4O4

> <MASS>
112.04040

> <MONOISOTOPIC_MASS>
111.98076

> <CHARGE>
-2

> <SMILES>
[O-]c1c([O-])c(=O)c1=O

> <INCHI>
InChI=1S/C4H2O4/c5-1-2(6)4(8)3(1)7/h5-6H/p-2

> <INCHIKEY>
PWEBUXCTKOWPCW-UHFFFAOYSA-L

> <BEILSTEIN_REGISTRY_NUMBER>
4231182

$$$$