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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

Description of key information

The substance is biodegradable. The substance is assessed to not P/vP.

Key value for chemical safety assessment

Additional information

According to Regulation (EC) 1907/2006, Annex IX, Section, Column 2, soil simulation testing does not need to be conducted if the substance is readily biodegradable.
The substance is not readily biodegradable according to OECD criteria. However, it is biodegradable based on an enhanced ready biodegradability test passing the test level of 60% CO2/ThCO2 but not meeting the 10-day window (OECD 301B, prolonged duration; BASF SE, 2012; see IUCLID Ch 5.2.1). In accordance with REACH Guidance document R.11 (ECHA, 2017: Table R.11-4, Figure R.11-3), substances which meet the pass level for ready biodegradability in enhanced ready biodegradation testing without the 10-day window are regarded as not P/vP. Further information for the assessment of non-persistence or persistence is not required. As this is the case for 1,2-dimethylimidazole, no soil simulation testing will be performed.