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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

The biodegradation of L-aspartic acid was 73.0 % within 28 days, when applying the OECD 301B method.
On day 4 the mean degradation already reached 63.1 %. Therefore the test item reached the pass level for ready biodegradability of 60 % ThCO2 and for the 10d-window.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The result of the OECD 301B CO2-evolution test was supported by 2 other sources:

- The Japanese databank reports D,L-aspartic acid to be readily biodegradable.

- A BOD-test reports a 56 % biodegradation for L-aspartic acid within a not reported time.