Potassium hydrogen butynedioate

Molecular Formula: C₄HKO₄

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

InChIKey: InChIKey=KLLYWRUTRAFSJT-SDPCSORECM
SMILES: C(#CC(=O)[O-])C(=O)O.[K+]

Names:
    Acetylenedicarboxylic acid, monopotassium salt
    EINECS 213-169-2
    Monopotassium salt of acetylenedicarboxylic acid
    NSC 631597
    Potassium hydrogen butynedioate
    potassium 4-hydroxy-4-oxo-but-2-ynoate
    U-4783
    142-45-0
    2-Butynedioic acid, monopotassium salt
    40636-47-3
    928-04-1

Registries:
    PubChem CID 70230
    PubChem ID 212413