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EC number: 253-057-0
CAS number: 36483-57-5
Fresh Water Algal Growth Inhibition Test with FR-513
Static algal freshwater growth inhibition test has been conducted with
FR-513 according to OECD 201 guidelines.
The project started with a range finding test which resulted that the
expected EC50 for cell growth inhibition was between 10 and 100 mg/l.
The expected EC50 for growth rate reduction approximated the highest
test concentration of 100 mg/l. The project was continued with a final
test exposing exponentially growing algal cultures to a blank control
and a series of nominal concentrations of FR-513.
FR-513 reduced growth rate of this freshwater algae species
significantly at 4.6 mg/l and higher.
The EC50 for cell growth inhibition was 28 mg/l with a 95% confidence
interval ranging from 19-42 mg/l
The EC50 for growth rate reduction was beyond the tested range (above
The NOEC for cell growth inhibition and growth rate reduction was 2.2
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