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Physical & Chemical properties

Partition coefficient

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Description of key information

Literature values range from 1.13 to 1.62

Key value for chemical safety assessment

Log Kow (Log Pow):
1.3
at the temperature of:
20 °C

Additional information

Seven data on logKo/w with reliability scores of 2 and 4 are available and give values within the narrow range from 1.13 to 1.62. These have been used in a weight of evidence approach.

Moreover, 4-methoxyphenol is one of the substances recommended as reference substances in the OECD TG 117 (HPLC method) and the draft OECD TG 122 (pH-metric method). Therefore, it can be expected that the logKow value recommended in these guidelines, which has a value of 1.34, has been peer-reviewed and considered as reliable. 

Consequently, a value of 1.3 is retained for log Ko/w.