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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

After 48 h under semi-static conditions no toxic effects against daphnia were observed at a limit test concentration of 100 mg/L, corresponding to a measured concentration of < 0.0176 mg/L, which reflects the maximum water solubility under exposure conditions. The results are expressed in terms of nominal concentrations. After 0 and 48 hours the values were below the quantification limit of the HPLC analysis (0.0176 mg/L).

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
100 mg/L

Additional information

"should read > 100 mg/L"

This endpoint was covered by read-across of a study of 1,4-bis[(2-ethyl-6-methylphenyl)amino]anthraquinone. This read-across is justified as both substances have very similar chemical structures, the main physicochemical parameters (vapour pressure, water solubility and dissociation constant) are in the same range and further all available toxicological studies for both substances revealed the same results. Therefore a read-across for other physicochemical, ecotoxicological or toxicological endpoints seems to be justified. More details about the read-across justification are displayed in a detailed document attached to the Annex of the CSR.