but-2-ynoic acid

Molecular Formula: C4H4O2


InChI: InChI=1/C4H4O2/c1-2-3-4(5)6/h1H3,(H,5,6)/f/h5H

InChIKey: InChIKey=LUEHNHVFDCZTGL-JSWHHWTPCU
SMILES: CC#CC(=O)O

Names:
    but-2-ynoic acid
    EINECS 209-695-7
    NSC 174116
    Tetrolic acid (8CI)
    1-Propynecarboxylic acid
    2-Butynoic acid
    3-Methylpropiolic acid
    590-93-2

Registries:
    PubChem CID 68535
    PubChem ID 210660