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Description of key information

Waiver based on ready biodegradation

Key value for chemical safety assessment

Additional information

Reliable measured hydrolysis study for FX511 is not available. Therefore a waiver is applied.


In Annex VIII column 2 of the REACH Regulation, it is suggested, that a study on the "Hydrolysis as function of pH" does not need to be conducted if the “substance is readily biodegradable". It can be concluded that a study on the hydrolysis as a function of pH is not required based on the rapid biodegradability of FX511 in the environment.