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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

With high probability acutely not harmful to aquatic invertebrates.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
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.