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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

In the 48-hour static acute toxicity test to Daphnia magna with the test substance the 48-hour EC50 value was determined as 0.037 mg/L.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
0.037 mg/L

Additional information

In the 48-hour static acute toxicity test to Daphnia magna with the test substance the 48-hour EC50 value was determined as 0.037 mg/L (Probit analysis). The 48-hour NOEC was determined to be lower than 0.022 mg/L, while the 48-hour LOEC was 0.022 mg test item/L. The average measured concentration of the test item in the test solution was in the range 0.020 – 0.306 mg/L at the start and 0.024 – 0.408 mg/L at the end of the test. There is evidence that the concentration of the tested substance was satisfactorily not maintained within ± 20 % of the nominal concentration throughout the test. Therefore the analysis of the results was based on the geometric mean of the measured concentration values. All validity criteria were within acceptable limits and therefore the study can be considered as valid.