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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

1,2-dimethylimidazole is considered to be acutely harmful to fish.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Dose descriptor:
LC50
Effect concentration:
63.03 mg/L

Additional information

The acute toxicity of 1,2-dimethylimidazole to Danio rerio was investigated in a GLP guideline study according to OECD 203. The LC50 (based on analytically verified nominal concentrations) after a test duration of 96h was determined to be 63.03 mg/L (BASF AG 17F0206/965059, 1998). Based on these data the test substance is considered to be acutely harmful to fish.