Assessment of chemicals

eChemPortal: Global Portal to Information on Chemical Substances


What's new 

The OECD is pleased to announce the release of version 3.8 of eChemPortal on 13 October 2021. This new and improved version enables users to access property and effect values expressed in different units in fewer steps.

Free webinars and training events will be organised upon request to

Search for data on chemicals by: 

Substance search Property search Classification search

Video: Learn how to find data on chemicals in eChemPortal


Roles and responsabilities

The Organisation for Economic Co-operation and Development (OECD) is responsible for the development and maintenance of eChemPortal, and eChemPortal is hosted by the European Chemicals Agency (ECHA). The data sources accessed through eChemPortal are maintained by and remain the responsibility of the organisations that create them. The data and information stored in each data source are the responsibility of the data owner. Participating data sources are responsible for ensuring links from eChemPortal to their local data sources are updated.

Extending eChemPortal

Holders of Internet-accessible databases or report collections containing peer-reviewed information on physical-chemical properties, environmental fate and pathways, ecotoxicity or toxicity of chemicals, as well as their use and exposure, are invited to participate in eChemPortal.

Proposals should be submitted to the OECD Secretariat at

Contact & Social Media 

The OECD is pleased to announce the release of version v3.8 of eChemPortal on 14 October 2021.

This maintenance release includes an improvement of the Property Search allowing users to select all values/units in fields containing a list of units to avoid the need to add a query block per non-convertible unit.”


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