New Analog Identification Methodology (AIM) software is now available from EPA


Source: EPA
Related Topics: Toxic Substances Control Act (TSCA) US Environmental Protection Agency

The Analog Identification Methodology (AIM) was designed to facilitate analog analysis and data identification in support of chemical assessment and read across approaches. AIM conducts a comprehensive structural analysis of a user entered chemical using over 700 individual atoms, groups and super fragments indexed in a predefined database. It then matches them to potential analogs from a built in inventory of over 86,000 chemicals with publicly available measured data and includes links to the data sources.

The underlying AIM methodology underwent a formal beta test from 2006 – 2008 with the previous web based version of the tool that was decommissioned in January 2012. The only major change to this version of the tool was its conversion from a web application to a downloadable software program. Therefore, EPA is not conducting another formal beta test of this software but I encourage users to provide feedback to EPA on the ease of use, value of the tool, and any technical issues you have with the software.

AIM is available for download from the Sustainable Futures Models and Methods page at

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