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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Biodegradation in water: Screening tests: not readily biodegradable, 4% in 28 days (O2 consumption) (EU Method C.4-D / OECD 301 F (Ready Biodegradability: Manometric Respirometry Test))

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

There is an OECD guideline study on biodegradation in water: screening tests available, assessed with Klimisch 1 and hence considered as sufficiently reliable to cover this endpoint.

3-cyclohexylaminopropane-1-sulphonic acid was tested for the ready biological degradability in a Manometric Respirometry Test according to EU Method C.4-D / OECD 301 F. Within 28 days a degradation of 4 % based on O2 consumption was attained, a 10-day-window was not observed. As degradation missed 60 % after 28 days, the test item has to be considered as "not readily biodegradable".