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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Since the substance hydrolyses in water, determination of the partition coefficient according to EU test method A.8 is not possible. However, in a supporting study, the log Pow has been estimated at 2.12 by calculation.

Key value for chemical safety assessment

Log Kow (Log Pow):
2.12
at the temperature of:
20 °C

Additional information

2-tert-butylaminoethyl methacrylate is not stable under testing conditions and in the environment. The log Kow of this substance of 2.12 has therefore been estimated using KOWWIN estimation software (v1.68). For long-term exposure, sorption and bioaccumulation potential it is more important to focus on the log Kow of the degradation product; N-tert butyl, N-hydroxyethylamine (CAS no 4620-70-6). For this degradation product a log Kow of 0.22 was calculated with KOWWIN.