Registration Dossier
Registration Dossier
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EC number: 202-269-1 | CAS number: 93-70-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The key study report was conducted and reported according to the OECD Guideline for the testing of chemicals 301 F and principles of GLP therefore,reliable without restrictions.
Both test item replicates reached the 10 % level (beginning of biodegradation) after 3 days. Already after 6 days the plateau was reached. The mean
biodegradation rate on day 28 was 30 %.
The test item must be regarded as not readily biodegradable in the 10-d-window and after 28 days.
In the second report, the substance is not inherent biodegradable in Zahn Wellens Test.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
In the key study (ready biodegradability: Manometric Respirometry Test) the validity criteria of the guideline OECD 301F are fulfilled.
The second report was not well documented most of the information are missing such as test procedure, conditions, reference substance. The validity criteria of the guideline OECD 302B (Zahn Wellens Test) are not fulfilled.
In both tests the substance is not biodegradable under the test conditions.
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