Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

With high probability acutely not harmful to aquatic invertebrates.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
297 mg/L

Additional information

The acute toxicity of 2 -ethyl-4 -methylimidazole (CAS 931 -36 -2) to aquatic invertebrates was test in a static test according to the EU method C2 of Annex V to Directive 79/831/EEC. The test species was Daphnia magna. The test concentrations were not analytically verified but are assumed to be stable. The 48 -h EC50 was determined to be 297 mg/L (nominal; BASF AG, 1990; report no. 1/0245/2/89 -0245/89). It can be concluded that with high probability 2-ethyl-4-methylimidazole is acutely not harmful to aquatic invertebrates.