New free Danish online (Q)SAR predictions database with >600,000 substances

Eva Bay Wedebye, Marianne Dybdahl, Trine Klein Reffstrup, Sine Abildgaard Rosenberg, Nikolai Georgiev Nikolov

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Since 2005 the Danish (Q)SAR Database has been freely available on the Internet. It is a tool that allows single chemical substance profiling and screenings based on predicted hazard information. The database is also included in the OECD (Q)SAR Application Toolbox which is used worldwide by regulators and industry. A lot of progress in (Q)SAR model development, application and documentation has been made since the publication in 2005. A new and completely rebuild online (Q)SAR predictions database was therefore published in November 2015 at The number of chemicals in the database has been expanded from 185,000 to >600,000. As far as possible all organic single constituent substances that were pre-registered under REACH have been included in the new structure set. The new Danish (Q)SAR Database includes estimates from more than 200 (Q)SARs covering a wide range of hazardous properties relevant for human health and the environment such as acute toxicity to rat, mouse, fish, daphnia and algae, as well as many physical-chemical and environmental fate properties, skin irritation, sensitization, genotoxicity, cancer, endocrine activity and reproductive toxicity. In agreement with software vendors, (Q)SAR predictions for 600,000 substances from commercial and free software (CASE Ultra, Leadscope PDM, SciQSAR, ACD/Tox Suite and EPI Suite) are included in the database. The database is one of the most comprehensive freely available (Q)SAR tools for substance evaluations and large-scale screenings. The online interface to the database allows for advanced combination of searches as well as sorting functions on chemical similarity. Negotiations are underway with the OECD to integrate the new database with the OECD (Q)SAR Application Toolbox. The database was developed by the DTU National Food Institute in cooperation and with financial support from the Danish Environmental Protection Agency, the Nordic Council of Ministers and the European Chemicals Agency (ECHA).
Original languageEnglish
Publication date2016
Number of pages1
Publication statusPublished - 2016
EventQSAR 2016 conference - Miami Beach, Florida, USA, Miami Beach, United States
Duration: 13 Jun 201617 Jun 2016


ConferenceQSAR 2016 conference
LocationMiami Beach, Florida, USA
CountryUnited States
CityMiami Beach
Internet address

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