Registration Dossier
Registration Dossier
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EC number: 434-850-2 | CAS number: 1680-31-5
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
In a 21 day chronic toxicity study, Daphnia magna were exposed to Cetiol CC at nominal concentrations of 0 (control) , 2 mg/L under static renewal conditions in accordance with OECD 211 guideline.
LOEC: > 2 mg/L (nominal)
NOEC: > 2 mg/L (nominal)
No significant mortality or any other additional significant adverse effects or abnormal behaviour were observed in any test treatments.
The test substance had no observable chronic effect on Daphnia magna up to its saturation limit in test media.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 2 mg/L
Additional information
A long-term toxicity of the test item to the freshwater invertebrate Daphnia magna is available , but is regarded to be invalid. The study was performed as limit test , with sever difficulties to maintain the concentration and track the substance analytically.
In a repeated 21 day chronic toxicity study, Daphnia magna were exposed to Cetiol CC at nominal concentrations of 0 (control) , 2 mg/L under static renewal conditions in accordance with OECD 211 guideline. The water pH, temperature and dissolved O2 were within acceptable guideline specifications. Mortality , reproduction and sublethal effects were observed daily.
The following averall effect concentration (mg/L) are for the most sensitive endpoint (reproduction) and were obtained based on nominal concentrations:
LOEC: > 2 mg/L (nominal)
NOEC: > 2 mg/L (nominal)
No significant mortality or any other additional significant adverse effects or abnormal behaviour were observed in any test treatments.
The test substance had no observable chronic effect on Daphnia magna up to its saturation limit in test media..
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