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EC number: 814-509-8
CAS number: 62132-67-6
Members of this category are not expected to be bioaccumulative.
data on Kow are available for several members of this category. For
68649-11-6 log Kow is measured as >6.5 (Walker and Mullee, 2006) and >
4.82 (Hogg and Bartlett, 1995). For 68649-12-7, experimental data
measures log Kow as > 5 (Howard, 1982), > 7.6 (Seary, 2000) and > 3.87
(Hogg and Bartlett, 1995). For 68037-01-4 an experimental value of >6.5
(Walker and Mullee, 2006) is given. As the majority of the experimental
log Kow for substances in this category are greater than 4.5 this
indicates that an estimate of the bioaccumulation potential is required.
is a clear trend of increasing log Kow with increasing carbon number in
the alkanes and olefins. Dec-1 -ene dimer hydrogenated (CAS 68649 -11
-6) is the category member with the lowest carbon number, and therefore
will be the category member with the lowest partition coefficient. This
therefore indicates that the calculated log Kow of all category members
would be >10. As QSAR models do not have experimental data in this Kow
range the reliability of modelled Kow values > 10 is not known. However,
as two models indicate a log Kow >10 for the category member with the
lowest carbon number we can conclude that members of this category are
unlikely to be bioaccumulative and therefore that conducting a study to
determine an experimental BCF is not scientifically justified.
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