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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

biodegradation in soil: simulation testing
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is readily biodegradable

Description of key information

According to Annex IX, column 2, this study does not need to be conducted if the substance is readily biodegradable. Maleic anhydride hydrolyses rapidly (DT50 = 0.3 min), forming maleic acid. The substance itself and maleic acid are both readily biodegradable. Therefore, further testing on biodegradability and identification of degradation productsi s not required.

Key value for chemical safety assessment

Additional information