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Physical & Chemical properties

Partition coefficient

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Description of key information

Partition coefficient Log Kow = 1.39 (+/-0.31) (estimated)
Low potential for bioaccumulation.

Key value for chemical safety assessment

at the temperature of:
20 °C

Additional information

As no experimental study was available, the partition coefficient of 2-PN was estimated using QSAR calculations. Three models, using different methodologies, were used, one was considered as valid, the two others not assignable. A total of 10 consistent results was obtained, within the range 0.96-1.96, which is significantly below the threshold of 4, with regard to classification criteria (long-term aquatic toxicity). The arithmetical mean value of these 10 results (1.39 +/-0.31) will be retained. It should also be noticed that this mean is consistent with the value of the valid QSAR (1.11 +/-0.48).