Registration Dossier
Registration Dossier
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EC number: 278-145-6 | CAS number: 75234-41-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The median effective concentration (EC50) was defined as the concentration, calculated from the data obtained, resulting in immobilization of 50% of the daphnia in the time period specified.
The values obtained (and their 95% confidence limits) were:
24 h EC50: 200 (140 – 390) mg/L
48 h EC50 26 (23 – 30) mg/L
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 26 mg/L
Additional information
The 24 and 48 hour median effective concentrations oft he test item tot he freshwater crustacean Daphnia magna (<24 hours old) were determined und static test conditions at a temperature of 20 +/- 1 °C.
The median effective concentration (EC50) was defined as the concentration, calculated from the data obtained, resulting in immobilization of 50% of the daphnia in the time period specified.
The values obtained (and their 95% confidence limits) were:
24 h EC50: 200 (140 – 390) mg/L
48 h EC50 26 (23 – 30) mg/L
The measured concentrations of the test material at the start and finish of the test ranged from86% to 100% of the nominal values.
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