Assessment of chemicals

eChemPortal: Global Portal to Information on Chemical Substances


What's new 

Maintenance Release 

The OECD is pleased to announce the maintenance release of eChemPortal on 20 June 2024.

This maintenance release includes an alignment of the chemical property search fields and catalogue with elements of the OECD Harmonised Templates updated in IUCLID 6 v7, which was published in May 2023.  In addition, this new version of eChemPortal provides fixes and improvements, for example for property searches using nested query blocks, and for importing larger datasets.


The eChemPortal Guidance for New Participants

This Guidance provides concise and practical information to help organisations identify the type of chemicals information shared on the eChemPortal - the Global Portal to Information on Chemical Substances and to define the best strategy to participate as a data source.

Search for data on chemicals by: 

Substance search Property search Classification search

Video: Learn how to find data on chemicals in eChemPortal


Roles and responsibilities

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 [email protected].

Contact & Social Media 


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