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EC number: 254-996-9
CAS number: 40601-76-1
HPLC method at neutral pH using soil-adsorption-reference data was
applied for the determination of the adsorption coefficient (Koc) of the
substance. The mobile phase was 55/45 (v/v) methanol/water (gradient).
The column temperature was 35°C. The HPLC chromatogram of the test
solution, showed one peak. The retention time of this peak indicates
that the test substance elutes within the gradient to 100% methanol.
Using the isocratic part of the chromatographic method, the retention
time of reference substance 4,4’-DDT (log Koc = 5.63) was 6.3 minutes.
Hence, it was concluded that the log Koc of the test substance at
neutral pH was > 5.63 (Koc > 4.3 x 10^5). The
study was performed in accordance with EC C.9 and OECD 121 and according
to the principles of GLP.
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