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Long-term toxicity to fish

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The performance of a test for long-term toxicity to fish was considered scientifically not justified.
REACH Regulation (EC) No 1907/2006, Annex VIII, Sect. 9.1.3, Col. 2, states as follows:
“9.1.3: The study (long-term toxicity to fish) does not need to be conducted if:
- there are mitigating factors indicating that aquatic toxicity is unlikely to occur, for instance if the substance is highly insoluble in water or the substance is unlikely to cross biological membranes”
The test item is not stable in aquatic environment. Due to the rapid hydrolysis it can be assumed that upon contact with water, the test item undergoes rapid degradation resulting in the formation of respective degradation products. In addition, the substance in not soluble in water. Thus, the CSR does not show a need for an additional long-term aquatic test. Risk assessment is based on the short-term tests for all throphic levels.

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