Registration Dossier
Registration Dossier
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EC number: 806-919-0 | CAS number: 1356964-77-6
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation in water:
The substance was determined to be readily biodegradable, meeting the 10 -day window, in a GLP study performed according to OECD TG 301B, reaching 63.93% degradation after 28 days, based on CO2 evolution [Griffith, 2014].
Information derived from simulation tests performed using the read-across substance N,N-dimethyldecan-1-amide, mixture with N,N-dimethyloctan-1-amide (CAS No. 67359-57-3: The removal rate of the substance was determined under WWTP simulation conditions in the OECD 303A test. The substance exhibited a removal rate of 99.74 % (based on substance specific analysis).
The substance is very effectively removed from waste water by biodegradation. Under the condition of the CAS test the substance has a half life (DT50) of 0.0298 [d], i.e. the biodegradation rate is 23.25 [6 hours] resp. 93 [d].
Biodegradation in soil:
In two GLP studies (according to EPA 540/9-82-021, Subdivision N, Section 162-1 and German BBA guideline Part IV, 4-1)
performed using the read-across substance N,N-Dimethyldecan-1-amide (CAS No. 14433-76 -2) the test substance was mineralized to C02 in four soils to >70% of the applied radioactivity after 4 days. Depending on the type of soil, the DT-50 values were in the range of 0.02 to 0.27 days, i.e. 0.5 to approx 6.5 hours. Only two metabolites reached levels above 10% of the applied radioactivity. Their maximum value was at the first day and amounted to < 2 % after day 4. For risk assessment purposes, the worst case of 6.5h was used. This corresponds to a biodegradation rate of 2.56 [per day].
Biodegradation in sediment:
As the substance is readily biodegradable in water, simulation testing on ultimate degradation in surface water and sediment simulation testing does not need to be conducted according to the REACH regulation Annex IX (9.2.1.4 and 9.2.1.2).
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