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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Description of key information

logPow= >11 at 25°C

Key value for chemical safety assessment

Additional information

The calculation was based on the formal fragmentation of the molecule by Hansch-Leo method using computer program CLOGP, release 3.42.

The test compound consists of a mixture of several components. It is clear from the structural formula that the test compound is extremely lipophilic and thus has an extremely low water solubility. As is shown in the report on the Dissociation Constant, the only dissociable function, the aromatic OH group, is very little acidic with an estimated pKa between 9.5 and 10. It does therefore not contribute to hydrophilicity at ambient pH's.

We can therefore neither carry out an experimental determination of log P nor a meaningful preliminary experiment. Log P has to be calculated