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Registration Dossier
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EC number: 279-632-6 | CAS number: 80939-62-4
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation of the test item was determined using 3 studies that permit the screening for ready biodegradability. In the key study (1984), the determination of the ready biodegradability of the test item was assessed over a 28 day period by the modified Sturm test (OECD 301B). The nominal test concentrations were 10 and 20 mg a.s./L. The test material attained up to 12 and 13 % biodegradation after 28 days whereas the positive control substance (Aniline) was 101 % degraded 28 days. These results indicate that the test item cannot be classified readily biodegradable under conditions of the test.
This is supported by two different studies: In a supporting study on biodegradation (1989), the biodegradability was determined to be 16 %.
Additionally, the test item was investigated for its ready biodegradability in a manometric respirometry test according to the OECD301F over a period of 28 days(2005). After 28 d only 13 - 14 % biodegradation has been observed.
Therefore, in overall conclusion, the test item is not readily biodegradable according to OECD criteria
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