Registration Dossier

Physical & Chemical properties

Partition coefficient

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The test substance hydrolyses quickly (half life time < 4 minutes) therefore the partition coefficient cannot be determined. The partition coefficient of MPKO, the hydrolysis product of OS3600, was determined to be 1.25 at 22°C (pH 7).

Key value for chemical safety assessment

Log Kow (Log Pow):
1.25
at the temperature of:
22 °C

Additional information

Data waiving (study technically not feasible): The test substance hydrolyses quickly (half life time < 4 minutes) and therefore, the partition coefficient cannot be determined.

Supporting study: The log Pow of the analogue substance MPKO was determined by means of HPLC at neutral pH in accordance with OECD Guideline 107 and EU Method A.8. The partition coefficient of MPKO was determined to be 1.25 at 22°C (pH 7).