Registration Dossier
Registration Dossier
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EC number: 275-833-8 | CAS number: 71675-87-1
Endpoint summary
Administrative data
Description of key information
Key study: OECD guideline 301F, GLP study. The test substance is considered to be not readily biodegradable under aerobic aqueous conditions.
Additional information
Key study : The study of the 28 day ready aerobic biodegradability of test item, was carried out according GLP principles and according to OECD 301F/EC C.4 – D manometric respirometry methods, at the temperature 22 °C.The biodegradation was followed by the oxygen uptake of the microorganisms during exposure. The evaluation of biodegradation has to be based ThODNH4 and ThODNO3 because test item contains nitrogen. Test item was inoculated with activated sludge in closed flask at the constant temperature under continuous stirring. The consumption of oxygen was determined by measuring the change of pressure in the flasks. A procedure control, blank test, toxicity test and Abiotic sterile control test were run in parallel. Reference item reach the level of biodegradation within 14 days,the oxygen demand of the blank control was 30 mg O2/L and according the toxicity control the test item can be assumed to be not inhibitory. At the end of the test at day 28, the degradation of Acilian was 0% (ThODNH4, ThODNO3). Thus the test item cannot be deemed to be readily biodegradable.
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