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	<id>http://imde.io/index.php?action=history&amp;feed=atom&amp;title=EC_Number_-_TX</id>
	<title>EC Number - TX - Revision history</title>
	<link rel="self" type="application/atom+xml" href="http://imde.io/index.php?action=history&amp;feed=atom&amp;title=EC_Number_-_TX"/>
	<link rel="alternate" type="text/html" href="http://imde.io/index.php?title=EC_Number_-_TX&amp;action=history"/>
	<updated>2026-06-12T11:09:55Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.45.3</generator>
	<entry>
		<id>http://imde.io/index.php?title=EC_Number_-_TX&amp;diff=1438&amp;oldid=prev</id>
		<title>HansdG at 13:29, 12 February 2025</title>
		<link rel="alternate" type="text/html" href="http://imde.io/index.php?title=EC_Number_-_TX&amp;diff=1438&amp;oldid=prev"/>
		<updated>2025-02-12T13:29:39Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:29, 12 February 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Managed by&amp;#039;&amp;#039;&amp;#039;: ECHA (European Chemicals Agency).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Managed by&amp;#039;&amp;#039;&amp;#039;: ECHA (European Chemicals Agency).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Example:&amp;#039;&amp;#039;&amp;#039; Nickel (Ni) → EC Number: 231-111-4.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Example:&amp;#039;&amp;#039;&amp;#039; Nickel (Ni) → EC Number: 231-111-4.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;===Relationship Between EC Number and CAS Number===&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Many substances have both an EC Number and a [[CAS_Number_-_TX|CAS Number]].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* EC Numbers are used exclusively within the EU regulatory framework (e.g., REACH, ECHA databases).&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* CAS Numbers are used globally, including in the EU, the U.S., and other regulatory databases.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* A one-to-one relationship is not guaranteed:&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;**Some substances may have an EC Number but no CAS Number (e.g., naturally occurring minerals or regulatory groupings).&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;**Some CAS Numbers do not have an EC Number, especially for complex mixtures or proprietary substances.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*Both numbers are often cross-referenced in regulatory databases (e.g., ECHA’s REACH database, ChemSpider, PubChem).&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Taxonomy]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Taxonomy]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>HansdG</name></author>
	</entry>
	<entry>
		<id>http://imde.io/index.php?title=EC_Number_-_TX&amp;diff=1435&amp;oldid=prev</id>
		<title>HansdG: Created page with &quot;===EC Number (European Community Number)=== The EC Number (European Community Number) is a unique identifier assigned to chemical substances by the European Chemicals Agency (ECHA) under the REACH regulation and other EU chemical regulatory frameworks.  *&#039;&#039;&#039;Format&#039;&#039;&#039;: It consists of seven digits in the format XXX-XXX-X (e.g., 231-100-4 for water). *&#039;&#039;&#039;Purpose&#039;&#039;&#039;: Used primarily in European regulatory systems for chemical tracking, classification, and compliance (e.g., RE...&quot;</title>
		<link rel="alternate" type="text/html" href="http://imde.io/index.php?title=EC_Number_-_TX&amp;diff=1435&amp;oldid=prev"/>
		<updated>2025-02-12T13:20:18Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;===EC Number (European Community Number)=== The EC Number (European Community Number) is a unique identifier assigned to chemical substances by the European Chemicals Agency (ECHA) under the REACH regulation and other EU chemical regulatory frameworks.  *&amp;#039;&amp;#039;&amp;#039;Format&amp;#039;&amp;#039;&amp;#039;: It consists of seven digits in the format XXX-XXX-X (e.g., 231-100-4 for water). *&amp;#039;&amp;#039;&amp;#039;Purpose&amp;#039;&amp;#039;&amp;#039;: Used primarily in European regulatory systems for chemical tracking, classification, and compliance (e.g., RE...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;===EC Number (European Community Number)===&lt;br /&gt;
The EC Number (European Community Number) is a unique identifier assigned to chemical substances by the European Chemicals Agency (ECHA) under the REACH regulation and other EU chemical regulatory frameworks.&lt;br /&gt;
&lt;br /&gt;
*&amp;#039;&amp;#039;&amp;#039;Format&amp;#039;&amp;#039;&amp;#039;: It consists of seven digits in the format XXX-XXX-X (e.g., 231-100-4 for water).&lt;br /&gt;
*&amp;#039;&amp;#039;&amp;#039;Purpose&amp;#039;&amp;#039;&amp;#039;: Used primarily in European regulatory systems for chemical tracking, classification, and compliance (e.g., REACH, CLP, and Biocidal Product Regulations).&lt;br /&gt;
*&amp;#039;&amp;#039;&amp;#039;Scope&amp;#039;&amp;#039;&amp;#039;: Assigned to all known chemical substances, including elements, simple compounds, and mixtures used in the EU market.&lt;br /&gt;
*&amp;#039;&amp;#039;&amp;#039;Managed by&amp;#039;&amp;#039;&amp;#039;: ECHA (European Chemicals Agency).&lt;br /&gt;
*&amp;#039;&amp;#039;&amp;#039;Example:&amp;#039;&amp;#039;&amp;#039; Nickel (Ni) → EC Number: 231-111-4.&lt;br /&gt;
&lt;br /&gt;
[[Category: Taxonomy]]&lt;/div&gt;</summary>
		<author><name>HansdG</name></author>
	</entry>
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