Registration Dossier
Registration Dossier
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EC number: 228-940-9 | CAS number: 6375-55-9
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
OECD 221, analogue substance, ErC50 > 256 mg/l
Key value for chemical safety assessment
Additional information
Experimental data of the target substance are not available, thus the information on the Similar Substance 02 have been taken into account for a first assessment.
The inhibitory effects based on the average specific growth rate and the yield (absolute increase in plant size) of the substance to the duckweed Lemna minor was investigated over a period of 7 days.
The test was performed at concentrations of 20, 200 and 2000 mg/l of the active ingredient.
Taking into account a purity of the substance, nominal concentrations of 25.6, 256 and 2560 mg/l mg/l, respectively, were prepared.
No chemical analysis of the test concentrations was conducted. The (ErC50)and to yield (EyC50) for the endpoint frond numbers was estimated to be 256–2560 mg/l nominal concentration.
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