is conjugate base of propynoate 68.998 69.03880 Acetylenemonocarboxylate An acetylenic fatty acid anion and the conjugate base of propynoic acid, arising from deprotonation of the carboxylic acid group. Beilstein:3903650 C3HO2 CHEBI:14908 CHEBI:15364 CHEBI:26312 Gmelin:323514 InChI=1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5)/p-1 KEGG:C00804 Propiolat Reaxys:3903650 UORVCLMRJXCDCP-UHFFFAOYSA-M [O-]C(=O)C#C acetylenecarboxylate chebi_ontology prop-2-ynoate propiolate propynoate propynoic acid monocarboxylic acid anion short-chain fatty acid anion acetylenic fatty acid anion