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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Log Kow = 3.41

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
25 °C

Additional information

The substance used for estimation of log Kow is the amide derivative of Basic Brown 1 acetate. EPIWEB 4.1 does not include in its applicability domain salt forms and it is not therefore possible to use it as to predict data for this kind of substances.

However, the amide derivative has a similar polarity and can represent a conservative case for Basic Brown 1 acetate. In fact the prediction for its water solubility is in the same range of Basic Brown 1 acetate (0.0008 mg/l vs 0.1 mg/l).

The expected log Kow for Basic Brown 1 acetate is therefore considered <= 3.41.