Registration Dossier
Registration Dossier
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EC number: 205-271-0 | CAS number: 136-99-2
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The test item was investigated for its ready biodegradability in a manometric respirometry test over a period of 28 days. The degradation rate of the test item did not reach 60% within the 10-day window or at the end of the test. Therefore, it is considered to be not readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The test item was investigated for its ready biodegradability in a manometric respirometry test over a period of 28 days. The test item contains nitrogen; therefore the evaluation of biodegradation has to be based on ThODNH4 and ThODNO3 if the test item is biodegradable. The 10-day window started at day 17 based on ThODNH4 when the mean biodegradation was 10%. The end of the 10-day window was not within the experimental phase, the mean biodegradation at day 28 was 11%; the 10 day window criterion was not passed. Based on ThODNO3, the degradation was not greater than 10% within the experimental phase. Therefore, the test item is considered to be not readily biodegradable.
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