DERAC is a scientific consultancy dedicated to Environmental Risk Assessment of Chemicals linking research and regulatory worlds.


Founded by Dr Geneviève Deviller in 2016 after 20 years of professional experience in the service of research institutions, regulatory bodies and industry, DERAC has an unique and independent expertise in this field and can offer a range of high-quality services to customers from both the public and private sectors.


These include performing studies in ecotoxicity, environmental fate&behaviour and physico-chemistry, preparation of registration dossiers and their defence, modeling hazard (QSAR) and exposure, scientific representation with customers and the authorities, research funding support and scientific partnership, development of methods to assess risk and also training where required. 


By listening to and working with our customers, we commit to delivering a quality service which meets your needs and priorities.


DERAC offers multilingual support (English, French, Spanish and Italian) and features collaborations with selected partners to provide the best service to customers. 


February 2020


New version of QSAR Toolbox (v 4.4) launched with new features!

  • New Simplified Toolbox interface to introduce new users to the Toolbox. 
  • New Toolbox Repository allowing third-parties to develop their own extensions and make them available to the whole Toolbox community.
  • Includes ECHA REACH database and extension for Toolbox and Japan’s KAshinhou Tool for Ecotoxicity (KATE).
  • 71 profilers and 16 metabolisms available, including 1 new profiler, 18 updated profilers and 6 updated metabolic simulators.
  • 57 databases with 92 134 substances and 2 634 458 data points available, including 7 update databases and 1 updated inventory.
  • New automated workflow and custom profiler for Skin sensitisation for Defined Approaches purposes.
  • Implementation of the latest EPISUITE model versions.

Download the new version at:


In addition, tutorials for the QSAR Toolbox are updated, including 3 new tutorials to be consulted at:


Photo by Antoine Dautry on Unsplash