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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Description of key information

Using the Rekker calculation method, the partition coefficient log Pow = -3.0 
Using the estimation method from solubilities, the partition coefficient log Pow = -1.3.

Key value for chemical safety assessment

Log Kow (Log Pow):

Additional information

The difference in results using the two methods can be explained by estimations of log Kow values in this low range generally not being very accurate. The calculated log Kow is less than the bioconcentration threshold (log Kow =3) indicating that PDTN is not expected to be susceptible to bioaccumulation.