Useful Links







European Chemicals Agency (ECHA)




HSDB in PubChem (National Library of Medicine – National Center for Biotechnology Information, USA)
Hazardous Substances Data Bank. Peer-reviewed toxicology data for over 5,000 hazardous chemicals
TOXNET in PubChem (National Library of Medicine – National Center for Biotechnology Information, USA)
4 million references to literature on biochemical, pharmacological, physiological, and toxicological effects of drugs and other chemicals
ChemIDplus in PubChem (National Library of Medicine – National Institutes of Health, Health & Human Services, USA)
PubChem is an open chemistry database at the National Institutes of Health (NIH). PubChem mostly contains small molecules, but also larger molecules such as nucleotides, carbohydrates, lipids, peptides, and chemically-modified macromolecules.

ChemSpider is a free chemical structure database providing fast text and structure search access to over 58 million structures from hundreds of data sources.
Exemplar Global Inc. is a not-for-profit organization that services and supports the conformity assessment industry (auditors, trainers and certification bodies).

