Registration Dossier
Registration Dossier
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EC number: 207-988-4 | CAS number: 504-29-0
Endpoint summary
Administrative data
Description of key information
Biodegradation in water: Key study. Method according to OECD 301F / EU Method C.4 -D, GLP study. The 28 day biodegradation of the test item is 9.2% and therefore, it is not readily biodegradable.
Additional information
A study of ready biodegradability of the test according to OECD 301F / EU Method C.4–D (GLP study) was performed. 30 mg/L of activated sludge were exposed to 100 mg/L of test item during 28 days, under aerobic conditions at 22ºC. Blank tests (only inoculum), and procedure tests with a reference item (sodium acetate) were run in parallel to check the operation of the procedures. To check the possible inhibitory effect of the test item, a toxicity test was run in parallel. After correction for oxygen uptake for interference by nitrification and by the blank inoculum control, the final biodegradation of the test item on the 28th test day was 9.2%. Therefore, the substance is not readily biodegradable under test conditions. In the toxicity test, a 35% biodegradation was attained after 28 days and, therefore, the test item is not assumed to be inhibitory.
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