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	<id>https://wiki.tiffa.net/w/index.php?action=history&amp;feed=atom&amp;title=Category%3AEsters</id>
	<title>Category:Esters - Revision history</title>
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	<updated>2026-08-18T15:47:56Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://wiki.tiffa.net/w/index.php?title=Category:Esters&amp;diff=121662&amp;oldid=prev</id>
		<title>Fire: Created page with &quot;{{Commons cat|Esters}} {{Cat main|Ester}} In organic chemistry and biochemistry &#039;&#039;&#039;esters&#039;&#039;&#039; are the functional group (R&#039;-COOR&quot;) consisting of an organic radical united with the residue of any oxygen acid, either organic or inorganic. An ester is a product of the reaction of an acid (usually organic) and an alcohol (the hydrogen of the acid R-COOH is replaced by an alkyl group R&quot;).  Category:Organic compounds Cate...&quot;</title>
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		<updated>2024-02-27T01:06:58Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{Commons cat|Esters}} {{Cat main|Ester}} In &lt;a href=&quot;/w/index.php?title=Organic_chemistry&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Organic chemistry (page does not exist)&quot;&gt;organic chemistry&lt;/a&gt; and &lt;a href=&quot;/w/index.php?title=Biochemistry&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Biochemistry (page does not exist)&quot;&gt;biochemistry&lt;/a&gt; &amp;#039;&amp;#039;&amp;#039;&lt;a href=&quot;/w/index.php?title=Ester&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Ester (page does not exist)&quot;&gt;esters&lt;/a&gt;&amp;#039;&amp;#039;&amp;#039; are the &lt;a href=&quot;/w/index.php?title=Functional_group&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Functional group (page does not exist)&quot;&gt;functional group&lt;/a&gt; (R&amp;#039;-COOR&amp;quot;) consisting of an &lt;a href=&quot;/w/index.php?title=Organic_radical&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Organic radical (page does not exist)&quot;&gt;organic radical&lt;/a&gt; united with the residue of any &lt;a href=&quot;/w/index.php?title=Oxygen&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Oxygen (page does not exist)&quot;&gt;oxygen&lt;/a&gt; &lt;a href=&quot;/w/index.php?title=Acid&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Acid (page does not exist)&quot;&gt;acid&lt;/a&gt;, either organic or inorganic. An ester is a product of the reaction of an acid (usually organic) and an &lt;a href=&quot;/w/index.php?title=Alcohol_(chemistry)&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Alcohol (chemistry) (page does not exist)&quot;&gt;alcohol&lt;/a&gt; (the hydrogen of the acid R-COOH is replaced by an alkyl group R&amp;quot;).  &lt;a href=&quot;/w/index.php?title=Category:Organic_compounds&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Category:Organic compounds (page does not exist)&quot;&gt;Category:Organic compounds&lt;/a&gt; Cate...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Commons cat|Esters}}&lt;br /&gt;
{{Cat main|Ester}}&lt;br /&gt;
In [[organic chemistry]] and [[biochemistry]] &amp;#039;&amp;#039;&amp;#039;[[ester]]s&amp;#039;&amp;#039;&amp;#039; are the [[functional group]] (R&amp;#039;-COOR&amp;quot;) consisting of an [[organic radical]] united with the residue of any [[oxygen]] [[acid]], either organic or inorganic. An ester is a product of the reaction of an acid (usually organic) and an [[Alcohol (chemistry)|alcohol]] (the hydrogen of the acid R-COOH is replaced by an alkyl group R&amp;quot;).&lt;br /&gt;
&lt;br /&gt;
[[Category:Organic compounds]]&lt;br /&gt;
[[Category:Oxygen compounds]]&lt;br /&gt;
[[Category:Functional groups]]&lt;/div&gt;</summary>
		<author><name>Fire</name></author>
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