Registration Dossier
Registration Dossier
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EC number: 244-848-1 | CAS number: 22224-92-6
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Reason / purpose for cross-reference:
- data waiving: supporting information
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
Description of key information
For risk assessment purposes a conservative approach is taken and the test item is considered as not readily biodegradable (worst case).
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
According to REACH, Annex VII, Section 9.2.1.1, a study on the ready biodegradability of the test item has to be performed. No study according to OECD 301 with the test item is available, however, a study on the sediment simulation according to EU Commission Directive 95/36/EC SETAC, 1995, and a soil simulation study according to OECD 307 with the test item are available. The test item showed to degrade rapidly in soil (DT50 = 0.71 d), moderately in freshwater (DT50 = 7.9 d) and slowly in sediment (DT50 = 111 d). A series of metabolites were detected in both studies. Based on a weight of evidence, it can be considered that the test item degrades rapidly in the environment. Nevertheless, for risk assessment purposes a conservative approach is taken and the test item is considered as not readily biodegradable (worst case).
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