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EC number: 801-709-5
CAS number: 53146-45-5
The octanol/water partition coefficient of the substance was determined
to be in the range 267 to 3940, log10 Pow in the range 2.43 to 3.60.
Using area normalization, 12.7 % of the test item gave a log10 Pow of
greater than 3.0.
The partition coefficient of PAB was determined (Harlan Laboratories,
2013) by the HPLC method.
Three main peaks were observed in the sample chromatogram, corresponding
to partition coefficients in the range 267 to 3940 and log10Pow
in the range 2.43 to 3.60. The largest peak represented 77.2% of the
overall peak area and corresponded to a log10Pow
of 2.43; it is considered that this relates to the main component in PAB
and as such it it the value which will be used for hazard and risk
Using area normalisation, 12.7% of PAB gave a log10Pow
greater than 3.0.
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