Registration Dossier
Registration Dossier
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EC number: 252-346-9 | CAS number: 35074-77-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
There is a high probability that the product is not acutely harmful to aquatic invertebrates.
Key value for chemical safety assessment
Additional information
The toxicity of the compound to aquatic invertebrates was assessed in a 48h GLP key study conducted according to OECD guideline 202. Due to the very low water solubility of the compound (< 5 μg/L) no concentration control was performed. The test was conducted as limit test with a limit concentration of 10 mg/L. The Daphnia were exposed to saturated solutions and all efforts have been taken to ensure a saturated solution. No effects could be recorded up to the saturation limit of the compound.
Additionally, a 24h acute toxicity study to Daphnia magna under static conditions is available. Daphnids were exposed to control, vehicle control and test chemical at nominal concentrations of 10, 18, 32, 58, and 100 mg/L for 24 hours at 20 °C. A stock solution consisting of 5.01 g of the test substance mixed with 40 mg alkylphenol-polyglykol-ether dissolved in 10 mL THF was used. Respective amounts of the stock solution were given into the test water to produce desired test concentrations. No immobilised daphnids were observed at any of the concentrations tested. The 24-hour EC50 was above 100 mg/L.
There is a high probability that the product is not acutely harmful to aquatic invertebrates.
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