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EC number: 210-438-6
CAS number: 615-60-1
96 h LC50 (Pimephales promelas) = 2.27 mg/L (C.I. 1.86 - 2.83 mg/L), NOEC = 0.958 mg/L, OECD 203 (Boeri, 2004)
In the key study, the acute toxicity of the test material to the fathead
minnow (Pimephales promelas) was determined in a 96 hour semi-static
test conducted in accordance with the OECD Guideline for Testing of
Chemicals No. 203 under GLP conditions.
The nominal concentrations tested were 0.65, 1.1, 1.8, 3.0 and 5.0 mg/L,
along with a parallel control and DMF solvent control. The analytically
determined test material concentrations in the test media varied in the
range from 87 to 95 % of the nominal value.
Exposure of fathead minnows to the test material resulted in a 96-hour
median lethal concentration (LC50) of 2.27 mg/L, with a 95 % confidence
interval of 1.86 to 2.83 mg/L. The 96 hour no observed effect
concentration (NOEC) was 0.958 mg/L (this concentration allowed 90 %
survival with no sub-lethal effects). After 96 hours of exposure, there
was 100 % survival in the control and solvent control.
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