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EC number: 943-030-8
CAS number: -
NOEC (21 days, Daphnia magna) =
10.0 mg/l test item (nominal)
EC50, 21d > 32 mg/l (effect reproduction)
The toxicity of the test item to
invertebrates and their reproduction was evaluated in a semi-static
experimental study on Daphnia magna over 21 days, according to a guideline
equivalent to OECD 211. D. magna were exposed to test media
containing either 1.0, 3.2, 10.0, 32.0 or 100 mg/l test item, or a
negative control containing test medium without test item (5 animals per
flask; 10 animals per concentration) and were monitored for rate of
reproduction and rate of survival for 21 days. Stability of the
concentration of test media was analysed by measuring the concentration
of test media: samples were taken from the control, 10.0 and 100 mg/l
test media at 0, 48 and 72 hours after preparation, both with and
without algae, and stock solution was monitored on test days 0, 7 and
16. pH level and oxygen concentration of the media containing the
highest and lowest test item concentrations were monitored at the start
and end of exposure periods throughout the test and the NOEC, 21 d
resulted equal to 10 mg/l.
Based on the read across considerations
same results apply to the target substance.
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