Registration Dossier
Registration Dossier
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EC number: 279-919-6 | CAS number: 82205-20-7
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The test item showed 5 % degradation within 28 days under the conditions of test method EU C.4-E (Determination of the "Ready" Biodegradability - Closed Bottle Test, Version 29.12.1992) and is thus considered to be not readily biodegradable.
63 % and 87 % elimination of the test substance (verified by DOC measurements) could be observed after 3h and 7 d, respectively, under the conditions of the OECD 302 B Test (Zahn-Wellens Test, Version August 1989). The high elimination within the first 3 h of the experiment indicates removal through adsorption of the test substance. As no adsorption control was included in the experiment, no conclusions can be made on the actual elimination of the test substance through biodegradation.
Based on the chemical structure of the test item, neither ready nor inherent biodegradability is expected.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
This information is used in a read-across approach in the assessment of the target substance.
For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
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