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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

With and without addition of S-9 as the metabolizing system, isobutyrophenone did not show any mutagenic activity in the concentration range applied.

Short description of key information:
Isobutyrophenone did not show any mutagenic potential with and without metabolic activation

Endpoint Conclusion: No adverse effect observed (negative)

Justification for classification or non-classification

There are conclusive but not sufficient data for classification of isobutyrophenone with regard to mutagenicity.

Isobutyrophenone is not classified for this endpoint in accordance to Directive 67/548/EEC or the CLP Regulation (EC) No 1272/2008