About CAS Analytical Methods

What's New, Quick Reference, Terminology, and General Information

What's New

What's New: June 2024
Compare Update More easily locate the Compare button to add a method to the compare tray. Preview all methods selected for compare in ...

Quick Reference Guide
Search Advanced Search Results Method Detail Compare Methods Saved Page Search Advanced Search Results Method Detail Compare Meth...

Analyte
An analyte is a substance or compound that is being extracted, detected, isolated, or identified by the method. You can search for anal...
CAS Method Number (CAS MN)
You can retrieve a method by entering the CAS MN in the Search field. The method number for a result is found on its detail page. The...
Matrix
The matrix is the medium or material that contains the analyte. You can search for the matrix by entering keywords into the Search fiel...
Method Title
The method title is generated by CAS and summarizes what is being detected, in what material, by what technique. A typical format for t...

System Requirements
To ensure the best CAS Analytical Methods experience, and to conform with the most recent Internet security standards, use the latest r...