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EC number: 203-906-6
CAS number: 111-77-3
A number of studies have been carried out using multiple species of
fish, both fresh and salt water. One study in two species is
sufficiently well reported to judge it as reliable and this can be used
to derive the key parameters. All the other available experimental
studies, whilst not individually robust, report data that is consistent
with the key study and provide strong evidence that 2 -(2
-methoxyethoxy)ethanol is practically non-toxic to fish over the acute
timeframe. The key parameter however is selected from a study for which
the results are only currently available from a secondary source. This
study is selected as it provides the lowest reported true LD50 reported
in any of the studies that are available. This 96hr LC50 is 5700mg/l.
There is sufficient information available on the short term toxicity of
2 -(2 -methoxyethoxy)ethanol to Daphnia Magna from studies that were
carried out to acceptable methods to be able to judge that the substance
is of very low toxicity to invertebrates. No effects were seen at the
highest concentrations tested in two of the studies and the third
established an EC50 above these levels. The latter result is used for
the key parameter EC50 for this taxonomic group.
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