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EC number: 260-135-8
CAS number: 56375-79-2
In a 72 h toxicity study conducted according to OECD guideline 201, EC
Method C.3 and GLP principles, freshwater algae (Pseudokirchneriella
subcapitata) were exposed to the test substance at nominal
concentrations of 12.5, 25.0, 50.0, 100 and 200 mg/L (3 replicates per
concentration) and an untreated control (6 replicates), under static
conditions. Measured concentrations in the test solution were at 107 -
119% relative to nominal at the start of the test and 109 - 117% at the
end of the exposure. Therefore, effect parameters were based on nominal
concentrations. The EC50 for growth rate inhibition (72h-ErC50) was 179
mg/L , the 72h-ErC10 was 45.2 mg/L. The study met all validity criteria,
and is considered reliable without restriction.
ErC50: 179 mg/L
ErC10: 45.2 mg/L
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