Registration Dossier
Registration Dossier
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EC number: 269-284-3 | CAS number: 68214-04-0
Endpoint summary
Administrative data
Description of key information
Studies on three trophic levels are available.
The toxicity against Danio rerio was tested using a static test design as a limit test at141 mg/L test item (corresponding to 100 mg/L main constituent). Measured concentrations were 97 -113% of nominal. No mortality was observed and the 96h-EC50 was > 141 mg/L (> 100 mg/L for the active ingredient) (Laus 2017).
The substance (15% formulation) was tested in Daphnia magna (n=20, 4 replicates/concentration) according to OECD 202 in a static limit test. After 48 hours 35% immobility was seen at 667 mg/L (100 mg/L a.i.). The EC50 based on active ingredient is >100 mg/L (IBACON 2007)
A study with Lemna minor was performed using 5 concentrations ranging from 1.4 to 141 mg/L ( (1.3 -100 mg/L as a.i.) The measured concentrations are (geometric mean): ND, 3.1, 11.8, 46.6 and 135.9 mg/L. Incubation time was 7 days. Significant inhibition of plant growth was observed in the 2 highest concentrations. All validity criteria were fulfilled. The ErC50 of the substance is > 135.9 mg/L (>100 mg/L a.i.). The NOEC is 11.8 mg/L (14 mg/L as a.i.) based on measured concentrations (Laus 2018).
In a study according to OECD 209, sludge was exposed to the substance during 3 hours at 100, 320 and 1000 mg/L. At 1000 mg/L a slight inhibition of the respiration was observed (max ca 8%), while at both other concentrations no effect was seen. Therefore it is concluded that the NOEC is 320 mg/L and the EC50 is >1000 mg/L (Laus 2018).
Additional information
Based on the outcome of the key studies it can be concluded that the substance is of low toxicity versus aquatic organisms
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