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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

< 0.9 at 25°C

Key value for chemical safety assessment

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

Additional information

The log Pow of ZAN 573 is experimentally estimated to be < 0.9, although the substance eluted from the HPLC column before the standards. It can be reasonably ascertained that the log P is significantly below critical high values such as 3.5. The difficulty in obtaining a precise value does not hinder the determination of the hazard of the substance. Like other cyclic anhydrides, it is not expected to be bioaccumulative, nor to have significant transport, sedimentation or adsorption to particles (WHO, 2009).