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EC number: 231-323-7
CAS number: 7492-66-2
Bioaccumulation: aquatic / sediment
From BCFBAF (v3.00) model of EPI suite
Program, the estimated bio concentration factor (BCF) for
1,1-diethoxy-3,7-dimethylocta-2,6-diene is 699.3 L/kg whole body w.w
which does not exceed the bio concentration threshold of 2000. Thus it
is concluded that 1,1-diethoxy-3,7-dimethylocta-2,6-diene is not
expected to bioaccumulate in the food chain.
Bioaccumulation: aquatic / sediment
Four results including different predicted
data from validated models for bioaccumulation (BCF) endpoint of target
chemical 1,1-diethoxy-3,7-dimethylocta-2,6-diene (Cas no. 7492-66-2)
were summarized as follows:
First prediction done using BCFBAF (v3.00)
model indicate the estimated bio concentration factor (BCF) for
1,1-diethoxy-3,7-dimethylocta-2,6-diene is 699.3 L/kg wet-wt which does
not exceed the bioconcentration threshold of 2000. Thus it is concluded
that 1,1-diethoxy-3,7-dimethylocta-2,6-diene is not expected to bio
accumulate in the aquatic environment.
From PBT profiler predicted database the
Bioaccumulation factor (BCF) for test substance
1,1-diethoxy-3,7-dimethylocta-2,6-diene was estimated to be 700 L/kg
wet-wt at 25 deg.C. Based on the BCF concentration it is concluded that
the test chemical 1,1-diethoxy-3,7-dimethylocta-2,6-diene is non
bioaccumulative in nature as it does not exceed the BCF criteria of
Above all prediction assist by result from
CompTox Chemistry Dashboard using OPERA (OPEn (quantitative)
structure-activity Relationship Application) V1.02 model in which
calculation based on PaDEL descriptors (calculate molecular descriptors
and fingerprints of chemical) indicate the bioaccumulation i.e BCF for
test substance 1,1-diethoxy-3,7-dimethylocta-2,6-diene was estimated to
be 845 dimensionless . The predicted BCF result based on the 5 OECD
principles. Thus based on the result it is concluded that the test
substance 1,1-diethoxy-3,7-dimethylocta-2,6-diene non-bioaccumulative in
nature as it does not exceed the BCF criteria of 2000.
Also from U.S. Environmental Protection
Agency,Hazard Characterization Document, September 2009 the
Bioconcentration (BCF) factor of test chemical Citral diethyl acetal
(Cas no.7492-66-2) i.e 1,1-diethoxy-3,7-dimethylocta-2,6-diene was
reported to be 1020 (Dimensionless).This BCF value suggest that the
chemical non bioaccumulative in aquatic environment as it does not
exceed the threshold of 2000.
Thus based on the above information for
bioaccumulation endpoint, it can be concluded that the test substance
1,1-diethoxy-3,7-dimethylocta-2,6-diene (Cas no. 7492-66-2) is expected
to be non Bioaccumulative in aquatic environment as none of the study
indicate the 1,1-diethoxy-3,7-dimethylocta-2,6-diene exceed the BCF
threshold of 2000.
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