Registration Dossier
Registration Dossier
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EC number: 483-300-8 | CAS number: 99580-93-5
Endpoint summary
Administrative data
Description of key information
Additional information
A hydrolyse study shows that the substance is not considerable to be abiotic degradable. At three pH values tested (4.0, 7.0 and 9.0) the degradation rate was less than 10%.
A ready biodegradation study in water (OECD 301F) shows that the substance is not ready biodegradable as over 10 days it did not reach a biodegradation rate (percentage) of 60 %. An additional Zahn-Wellens study (DEV L 25) shows a good inherent biodegradability of 98 % after 13 days.
The partition coefficient Log Kow value is very low (-3.79 at 22 °C). Final environmental risk assessment did not show an evidence of a relevant risk for the environment and a complete experimental BCF study in fish was not deemed necessary.
The available data support the final conclusion that the substance is not expected to distribute both in soil and air. The low Log Koc as well as the extremely low Kair-water value are indicating that negligible distribution in these two compartments can be expected.
The substance is not lipophilic, has a very low Log Kow value, is not considered to be bioaccumulative, has a high water solubility value and did not show a strong classification for the environment. On the basis of the described data, the manufacturing process and the pattern of use of the substance a negligible secondary poisoning is expected (as it will be demonstrated in the risk characterization section).
In the environmentally relevant pH range (pH 5 to 9) the substance is present in different ionic forms.
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