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EC number: 237-438-9
CAS number: 13784-51-5
The acute toxicity of Acetyl acetone
peroxide in solvent to Daphnia magna (water flea) was tested under
static conditions for 48 hours in accordance with OECD and EEC
guidelines for testing of chemicals. The test was performed in
compliance with Good Laboratory Practice (GLP).
The chemical analyses carried out showed
that the concentration of the test compound during the test decreased
below 80% of the concentration at the beginning of the test. The
following acetyi acetone concentrations were tested: 3.3, 5.9, 10.7,
19.3 and 34.6 mg/L
The EC50 (48 h) was calculated to be 10.91
mg/L with 95% confidence limits of 9.39 and 12.68 mg/L, based on active
The highest concentration causing no
immobility (no observed effect concentration, NOEC) after 48 hours was
not observed due to an effect at the lowest concentration tested. The
EC50 was 19.3 mg/L, which was observed after 24 hours.
Sublethal effects, such as floating at the
surface, were not observed in the test concentrations where no
immobility was observed.
Remark from the reviewer: The results given
in this summary are as given in the report, so have not been converted
to measured geometric mean concentrations.
for aquatic invertebrates is 7.1 mg a.i./L (measured geometric mean).
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