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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

Determination of the acute toxicity of TK 30250 in Daphnia magna (Acute 48-hours immobilization test).

Key value for chemical safety assessment

Additional information

The study was performed to assess the acute toxicity of the test item to Daphnia magna.

Chemical analysis of the test preparations at 0 and 48 hours showed measured test concentrations of less than the limit of quantification (LOQ) of the analytical method employed were obtained which was determined to be 0.00565 mg/L. This does not infer that no test item was in solution, just that any dissolved test item was at a concentration of less than the LOQ.


Exposure of Daphnia magna to the test item gave EC50values based on the nominal test concentrations of greater than 100% v/v saturated solution. The No Observed Effect Concentration was 100% v/v saturated solution.

This study showed that there were no toxic effects at saturation.