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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways


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Administrative data

Link to relevant study record(s)

Description of key information

Waiving: No data on hydrolysis rate constant available. The substance MPA is readily biodegradable and not subject to hydrolysis, thus no study on hydrolysis is required.

Key value for chemical safety assessment

Additional information

In accordance with column 2 of REACH Annex VIII, the hydrolysis study (required in section does not need to be conducted as the substance MPA is readily biodegradable. Furthermore, it can be concluded from the molecular structure of MPA that it does not degrade by hydrolysis as susceptible functional groups are missing.