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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Description of key information

The 21-d NOEC for monoethanolamine in Daphnia magna is 0.85 mg/L, after correction for molecular weight an effect concentration of 4.78 mg/L for monoethanolamine oleate will be used in the assessment.

Key value for chemical safety assessment

EC10, LC10 or NOEC for freshwater invertebrates:
4.78 mg/L

Additional information

No long-term studies with invertebrates are available for monoethanolamine oleate. A GLP-compliant OECD 211 test with Daphnia is available for one of its starting materials, monoethanolamine (NITE, 1996a). Monoethanolamine oleate is the salt of monoethanolamine and oleic acid. As oleic acid is exempted for registration according to Annex V of REACH Directive 2006/121/EC, the focus is only on the monoethanolammmonium cation of monoethanolamine oleate (for more details see reporting format for the analogue approach in Appendix A.2).

The 21-d NOEC is 0.85 mg/L, a safety factor need not to be applied to this value. Instead, the effect concentration will be corrected for molecular weight. An effect concentration of 4.78 mg/L for monoethanolamine oleate will be used in the assessment.