Registration Dossier
Registration Dossier
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EC number: 225-803-5 | CAS number: 5089-22-5
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The study does not need to be conducted because there are mitigating factors indicating that aquatic toxicity is unlikely to occur.
Key value for chemical safety assessment
Additional information
The study does not need to be conducted because there are mitigating factors indicating that aquatic toxicity is unlikely to occur: the substace is poorly soluble in test medium.
A non GLP-preliminary experiment was conducted in Lemna gibba, in order to assess the potential toxicity of the substance on quatic plants. The experiment was carried out at saturation concentration. Lemna colonies were exposed to the test concentration and for the untreated control for a period of 7 days.
Based on the results of non-GLP preliminary test, the test item had no significant effect on Lemna gibba at aquatic saturation: the 7d NOEC value based on the frond numbers can be determined to be higher than saturation.
Taken into consideration that substance is poorly soluble and that the results obtained into the preliminary test confirm that aquatic toxicity is unlikely to occur, a main-complete test was not considered as necessary.
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