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EC number: 605-076-4
CAS number: 156928-09-5
The mean coefficient of variation of the
daily growth rates was 26% after 72 hours and, thus, lower than the
maximum of 35% given by the OECD test guideline. The coefficient of
variation of the average specific growth rates in the control replicates
during the test period of 72 hours was 2.5% and, thus, below the maximum
of 7% indicated by the OECD test guideline. Therefore, all validity
criteria given by the test guidelines were fulfilled.
At the start of the test, the pH of the test
media and the control was 8.4. At the end of the test, pH values of 8.2
to 8.4 were measured. The water temperature during the test was 22 to 23
The study of Bätscher (2007), investigating the acute toxicity of T002675 to algae according to OECD guideline 201, was considered as the key study for endpoint coverage. The 72-h NOEC and 72-h EC50 for growth rate were determined to be > 119 mg/L and 119 mg/L respectively (mean measured concentration). The substance can be considered as not harmful to algae.
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