Registration Dossier
Registration Dossier
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EC number: 270-112-4 | CAS number: 68411-27-8
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The EC50 (48 h), based on nominal concentrations was determined as > 320 mg/L / based on measured concentrations as > 76.8 µg/L, indicating that the substance is not toxic to aquatic invertebrates. There were no effects recorded up to the limit of solubility of the test item under the conditions of the test.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Dose descriptor:
- EC50
- Effect concentration:
- 320 mg/L
Additional information
The purpose of this study was to determine the 48 hour ED50 of the substance to juvenile (<24 hour old) Daphnia magna.
The test was conducted under semi-static conditions. Daphnia were not fed during the test. Daphnia were exposed to a range of loading rates of Water Accommodated Fractions (WAFs) of the substance prepared by slowly stirring the appropriate volume of the substance into Elendt M7 medium for 23 hours.
The 24 hour ED50 (Effect Dose) based on nominal concentrations was >320 mg/L.
The 24 hour NOED (No Observed Effect Dose) based on nominal concentrations was ≥320 mg/L.
The 48 hour ED50 based on nominal concentrations was >320 mg/L (76.8 μg/L measured total substance concentration).
The 48 hour NOED based on nominal concentrations was ≥320 mg/L (76.8 μg/L measured total substance concentration).
The results contained in this report are the findings from a range finder experiment only. A definitive test was not necessary as the 48 hour EC50 was greater than 320 mg/L.
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