4-hydroxy-4-oxo-but-2-ynoate

Molecular Formula: C₄HO₄^-

InChI: InChI=1/C4H2O4/c5-3(6)1-2-4(7)8/h(H,5,6)(H,7,8)/p-1/fC4HO4/h5H/q-1

InChIKey: InChIKey=YTIVTFGABIZHHX-FNEPASJNCT
SMILES: OC(=O)C#CC([O-])=O

Names:
    acetylenedicarboxylate(1-)
    CHEBI:30782
    3-carboxyprop-2-ynoate
    4-hydroxy-4-oxo-but-2-ynoate

Registries:
    PubChem CID 4534582
    Beilstein =3538404
    ChEBI 30782
    Gmelin 533093
    PubChem ID 8147996