Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The Partition Coefficient (n-octanol/water), log Pow of MBB was -0.649. The Pow was 0.224.

Key value for chemical safety assessment

Log Kow (Log Pow):
-0.649
at the temperature of:
22.5 °C

Additional information

The Partition Coefficient of 2-Methoxymethyl-p-phenylenediamine (MBB) was determined following the OECD 117 guideline (Partition Coefficient (n-octanol/water) using High Performance Liquid Chromatography (HPLC)).

The test was conducted with a test material concentration of 5 mg/L in mobile phase consisting of 66.6% methanol and 33.3% phosphate buffer. Samples of the test material were analyzed via HPLC on a C18 column with DAD-detection.

The Partition Coefficient (n-octanol/water), log Pow of 2-Methoxymethyl-p-phenylenediamine (extrapolated) was -0.649. The Pow was 0.224