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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

readily biodegradable

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The ready biodegradability of 2-ethyl-4-methylimidazole (CAS 931-36-2) was studied in a GLP guideline study according to OECD 301A (DOC Die-Away test). Activated sludge from a laboratory wwtp treating municipal sewage was taken as inoculum. The degradation reached 86% after 28 d, the 10-d window was kept (BASF AG, 2005; report no. 21G0379/053109). therefore the substance is regarded as readily biodegradable according to OECD criteria.