Editing Propionic acid (section)

== Propionate salts and esters ==
The '''propionate''' {{IPAc-en|'|p|r|oʊ|p|i|ə|n|eɪ|t}}, or '''propanoate''',  [[ion]] is {{chem|[[Carbon|C]]|2|[[Hydrogen|H]]|5|C[[Oxygen|O]]O|−}}, the [[conjugate base]] of propionic acid. It is the form found in biological systems at [[physiological pH]]. A propionic, or propanoic, compound is a [[carboxylate salt]] or [[ester]] of propionic acid. In these compounds, propionate is often written in shorthand, as {{chem|CH|3|CH|2|CO|2}} or simply {{chem|EtCO|2}}.

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

===Examples===
====Salts====
* [[Sodium propionate]] {{chem|NaC|2|H|5|CO|2}}
* [[Potassium propionate]] {{chem|KC|2|H|5|CO|2}}
* [[Calcium propionate]] {{chem|Ca(C|2|H|5|CO|2|)|2}}
* [[Zirconium propionate]] {{chem|Zr(C|2|H|5|CO|2|)|4}}

====Esters====
* [[Methyl propionate]] {{chem|C|2|H|5|(CO)OCH|3}}
* [[Ethyl propionate]] {{chem|C|2|H|5|(CO)OC|2|H|5}}
* [[Propyl propionate]] {{chem|C|2|H|5|(CO)OC|3|H|7}}
* [[Pentyl propionate]] {{chem|C|2|H|5|(CO)OC|5|H|11}}
* [[Fluticasone propionate]] {{chem|C|25|H|31|F|3|O|5|S}}