Registration Dossier
Registration Dossier
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EC number: 248-502-0 | CAS number: 27503-81-7
Endpoint summary
Administrative data
Description of key information
Stability
The test substance is hydrolytically stable under environmental conditions (half-life >1 year at pH 4, 7 and 9) and abiotic degradation is not expected.
Biodegradation
The substance was tested in three independent tests for biodegradability. As a result, it is concluded that the substance is hardly biodegradable and potentially persistent in the environment.
Bioaccumulation
The substance has a low potential for bioaccumulation (log Kow = -1.42).
Transport and distribution
Due to the low logKow (-1.42) of the test substance, the potential for adsorption to soil and sediments is low. Furthermore a log Koc of 3.3 L/kg shows that the criteria for M and vM are not fulfilled.
Based on the low Henry's Law constant, no volatility under environmental conditions is expected.
Additional information
Study reports have been available for the ready biodegradability test, inherent biodegradability test and hydrolysis as a function of pH. The results are summarized as follows:
The biodegradability tests were performed according to OECD 302B, 301F and under anaerobic conditions. The results showed that the test substance is neither readily biodegradable, nor inherently biodegradable.
The assessment of hydrolytic stability of the test item was carried out using a procedure designed to be compatible with Method C.7 Abiotic Degradation, Hydrolysis as a Function of pH of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 111 of the OECD Guidelines for Testing of Chemicals,13 April 2004. The test item was determined to be hydrolytically stable (t1/2 >1 year at 25 °C) at pH 4, 7 and 9.
Based on the information from biodegradation and hydrolysis tests it has to be assumed that the test substance is persistent in the environment as no biotic or abiotic degradation was observed.
Due to the low logKow (-1.42) of the test substance the bioaccumulation potential in organisms and the adsorption potential to soil and sediments is low.
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