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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Bioaccumulation: terrestrial

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Administrative data

Link to relevant study record(s)

Description of key information

Waiver based on log Kow <3

Key value for chemical safety assessment

Additional information

Reliable measured bioconcentration information is not available for acetone oxime, therefore a waiver is applied. 

In accordance with Column 2 of REACH annex IX, the bioaccumulation test on terrestrial organisms need not be conducted if the substance has a low potential for bioaccumulation (for instance a log Kow <3) and/or a low potential to cross biological membranes or if direct and indirect exposure of the aquatic compartment is unlikely. The partition coefficient of acetone oxime was determined in a reliable study (Walker 2012) where the measured Kow is 0.077. Therefore, acetone oxime is considered to have low potential for bioaccumulation. No further testing is required.