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EC number: 203-127-1
CAS number: 103-60-6
EC50 24 mg/L, Daphnia magna, EU Method C.2, OECD 202, Caspers (1992).
The acute toxicity of the test material to aquatic invertebrates was
investigated using Daphnia magna in a GLP study in accordance
with the standardised guidelines EU Method C.2 and OECD 202. Daphinds
were exposed to a range of test concentrations under static freshwater
conditions. The measured concentrations of test material were fairly
consistent with nominal values but reduced somewhat with time as the
test material hydrolysed to form phenoxyethanol. Since the balancing of
both components showed levels of over 90% in the assays, results were
evaluated using nominal test concentrations. A plot of % inhibition
versus test material concentration enabled the EC50 value of 24 mg/L to
The study was performed in line with GLP and accepted guidelines,
however the reporting was incomplete. A sufficient level of detail was
available to assess the quality of the presented results and accordingly
the study was assigned a reliability score of 2 in line with the
principles for assessing data quality set out in Klimisch (1997).
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