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EC number: 201-328-9
CAS number: 81-14-1
Toxicity to fish
The acute toxicity of Musk Ketone was assessed with acute fish toxicity
test on Poecilia reticulata, over an exposure period of 96 hours
in a static system. Under the conditions, the 24, 48, 72, 96h LC50
values were all > 0.385 mg/L(measured initial concentration). The 96h
LC100 value was > 0.385 mg/L (measured initial concentration). The 96h
LC0 values were 0.385 mg/L (measured initial concentration).
Toxicity to aquatic invertebrates
Acute toxicity of Musk Ketone on Daphnia magna was accessed in an acute
immobilisation test, over an exposure period of 48 hours in a static
test system. Under the conditions of this Daphnia magna acute
immobilisation study, the observed 24, 48h EC50 values were both > 0.432
mg/L (measured initial concentration). The 48h EC100 value was > 0.432
mg/L (measured initial concentration). The 48h LC0 values were 0.432
mg/L (measured initial concentration). Additional the acute toxicity of
Musk Ketone was also tested with Daphnia magna (Schramm et
al, 1996). There was no toxic effect on daphnia at the highest
concentration of the substance. The 48 hour EC50 was > 0.46 mg/L.
Toxicity to algae
The effect of test item was assessed on algal growth using the
unicellular green alga Pseudokirchneriella subcapitata, over an expoure
period of 72 hours. Based on the effects of growth rate, the NOEC and
EC50 values were 88 and 244 μg/L, respectively.
Toxicity to micro-organisms
The effect of Musk Ketone on the respiration rate of activated sludge
microorganis was investigated in this study. Based on the result, the
exact value of EC50 could not be calculated, the 3-hour EC50 value given
in the form of a range: 3 hour EC50 > 1000 mg/L.
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