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EC number: 212-429-2
CAS number: 816-19-3
EC50 (invertebrates)= 23.8 mg/l (95% CL: 18.7-30.3 mg/l), 48 hour, freshwater, EPA OPPTS 850.1010, ABC Laboratories Inc. 2004NOEC (invertebrates)= 18.7 mg/l, 48 hour, freshwater, EPA OPPTS 850.1010, ABC Laboratories Inc. 2004
The acute toxicity to Daphnia magna was carried out
according to US. EPA OPTTS 850.1010 and OECD 202 Daphnia sp., Acute
Immobilisation Test guidelines. The mean measured concentrations
(average of the 0- and 48-hour measured concentrations) of test
substance ranged from 2.06 to 30.3 mg a.i./L and from 57 to 75% of the
nominal concentrations. All measured concentrations were corrected for
the average QC sample recovery on that day. Water quality parameters
remained within acceptable limits for Daphnia magna throughout the test.
Based on mean measured concentrations of test substance, the 48-hour
EC50 was 23.8 mg a.i./L (estimated 95% confidence limits: 18.7 and 30.3
mg a.i./L). The 48-hour NOEC was 18.7 mg a.i./L based on the absence of
sublethal effects and immobility at this and all lower test
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