Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Key value for chemical safety assessment

Additional information

One study according to OECD guideline is available and two other published studies that were found reliable. The overall weight-of-evidence indicates that BeO is not genotoxic. The Steele study was found reliable but was performed with methods that are generally more prone to uncertainty and quantitative errors.


Short description of key information:
Bacterial reverse mutation assay (OECD Guideline): Negative
Mammalian mutation: Negative
Cell transformation and DNA damage: Ambigous

Endpoint Conclusion: No adverse effect observed (negative)

Justification for classification or non-classification