Registration Dossier
Registration Dossier
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EC number: 932-121-8 | CAS number: 1147459-12-8
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
N-[3-(dimethylamino)propyl]-C12-18(even numbered)-alkylamide is considered as readily biodegradable with 85% of degradation after 28days.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Ready biodegradability of N-[3-(dimethylamino)propyl]-C12-18(even numbered)-alkylamide has been performed according to the OECD guideline 301 D “Ready biodegradability - Closed Bottle Test” and GLP requirements (Van Ginkel, 2009). Under the test conditions, the percentage of biodegradation of 2 mg/L of test item reached 85 % at the end (28 days) of the test. All the validity criteria were fulfilled but the pass level of 60% was not achieved within the 10 day window. Nevertheless, the test substance is an UVCB and thus this criterion can be waived. In conclusion, N-[3-(dimethylamino)propyl]-C12-18(even numbered)-alkylamide can be considered as readily biodegradable.
A test has been performed in same conditions for Amides, C18-unsatd., N-[3-(dimethylamine)propyl]. Under the test conditions, the percentage of biodegradation of 2 mg/L of test item reached 75 % after 28 days. These comparable results confirm that the length of the alkyl chain has no influence on the biodegradability of these surfactants.
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