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EC number: 203-379-2
CAS number: 106-26-3
There are no data available for (Z)-3,7-Dimethylocta-2,6-dienal itself.
However, there are acute aquatic toxicity studies available for three
trophic levels for the isomer 3,7-Dimethylocta-2,6-dienal (CAS
5392-40-5). Thus, the assessment is based on these data.
Chronic aquatic toxicity studies are not available. Considering
the a/c-ratio, corresponding studies are not considered to have a
relevant influence on the risk assessment and thus no further studies
The PNEC calculations are based on the results of the acute toxicity
test performed with L idus. For the sediment and
terrestric compartments the equilibrium partitioning method has been
The PNEC STP was calculated using the EC50 of ca. 160 mg/l determined in
a respiration inhibition test conducted with domestic, activated sludge.
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