Propionate

The propionate or propanoate ion is C₂H₅COO⁻ (the conjugate base of propionic acid).

A propionic or propanoic compound is a small salt or ester of propionic acid. In these compounds, propionate is often written in shorthand, as CH₃CH₂CO₂ or simply EtCO₂.

Propionates should not be confused with propenoates (commonly known as acrylates), the ions/salts/esters of propenoic acid (also known as 2-propenoic acid or acrylic acid).