Review of software tools for toxicity prediction

When assessing the properties of chemicals, the easiest and most consistent way of applying (Quantitative) Structure-Activity Relationship ([Q]SAR) models is to use ready-made software that implements the models via a user-friendly interface. A wide range of software tools are available for predicting physicochemical properties, toxicological endpoints and other biological effects, as well as fate in the environment and biological organisms. Typically, a given software package predicts multiple properties and endpoints, and some are extensible, allowing the user to develop new models or include new knowledge. In addition to (Q)SAR models and rulebases that are incorporated in software tools, there is a growing scientific literature which reports thousands of (Q)SARs. In this report, we give an overview of the software packages that are commonly used in the assessment of chemical toxicity. These software packages are potentially useful in the hazard and risk assessment of chemicals, including for regulatory purposes. However, the applicability of any given software tool needs to be carefully evaluated and documented.