Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The log Pow value for N-(n-octyl)-2-pyrrolidinone is 4.15 at 20 degrees centigrade

Key value for chemical safety assessment

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

Additional information

Two studies are available from the migrated NONS file provided by ECHA. One shows a log Pow value of 3.27, and the other shows a value of 4.15 at 20 degrees centigrade. The 4.15 value has been taken as a worst case scenario.

It is concluded that the log Pow value of N-(n-octyl)-2-pyrrolidinone is 4.15, as this is the worst case demonstrated.