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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Endpoint summary

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Administrative data

Key value for chemical safety assessment

Genetic toxicity in vitro

Description of key information

Niobium was negative, with and without metabolic activation, in a full battery of in-vitro genotoxicity tests.

Additional information

Niobium was negative, with and without metabolic activation, in an Ames test, in an in-vitro chromosomal aberration assay and in a mouse lymphoma assay.


Justification for classification or non-classification

Niobium was negative, with and without metabolic activation, in a full battery of in-vitro genotoxicity tests. No classification is warranted for this endpoint.