Registration Dossier
Registration Dossier
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EC number: 415-950-5 | CAS number: 155522-14-8
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The test substance is not readily biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The ready biodegradability of the test substance was determined in a GLP-compliant study according to OECD Guideline 301A (CG, 1994). The initial test substance concentration was 40 mg/L based on DOC. Biodegradation of the test substance after 28 days was found to be 0.1%.
The inherent biodegradability of the test substance was determined in a GLP-compliant test according to OECD Guideline 302B (CG, 1994). The initial test substance concentration was 150 mg/L based on DOC. In this test the total elimination of test substance after 28 days (regarding adsorption and biodegradation) was 0 %. Based on these findings the substance can be regarded as non-biodegradable.
The biological oxygen demand (BOD5) was examined in a GLP-compliant study according to ISO 5815 (corresponding to EC method C.5) (CG, 1994). The BOD5 of the test substance was found to be 6 mg O2/L. The chemical oxygen demand (COD) was examined in a GLP-compliant study according to DIN 38409- H 41-1 (corresponding to EC method C.6. (CG, 1994). The COD of the test substance is 700 mg O2/L. The BOD5/COD ratio supports the conclusion that the test substance is not readily biodegradable.Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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