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Long-term toxicity to aquatic invertebrates

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The performance of a test for long-term toxicity to aquatic invertebrates was considered scientifically not justified.
REACH Regulation (EC) No 1907/2006, Annex IX, Sect. 9.1, Col. 2, states as follows:
“9.1.: Long-term toxicity testing shall be proposed by the registrant if the chemical safety assessment according to Annex I indicates the need to investigate further the effects on aquatic organisms. The choice of the appropriate tests(s) depends on the results of the chemical safety assessment."
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 is 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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