SMILES: C#CC(=O)[O-]
Description: The molecule is an acetylenic fatty acid anion and the conjugate base of propynoic acid, arising from deprotonation of the carboxylic acid group. It is a monocarboxylic acid anion, an acetylenic fatty acid anion and a short-chain fatty acid anion. It is a conjugate base of a propynoic acid.