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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Description of key information

No effects up to the limit of water solubility based on available data (OECD 211).

Key value for chemical safety assessment

Additional information

One GLP Guideline study according to OECD 211 is available for (Z)-octadec-9-enyl oleate (CAS 3687-45-4). The study was performed with the water flea Daphnia magna under semi-static conditions. Due to the very low water solubility (< 0.05 mg/L) a limit test with a Water Accommodated Fraction (WAF) of nominal 100 mg/L was performed. No effects on reproduction and mortality were recorded after 21 d resulting in a NOELR (21 d) of ≥ 100 mg/L. 0% mortality was recorded in the control whereas 5% mortality was observed in the treatment. This mortality is regarded as natural and tolerated by the test guideline. The chemical analysis resulted in concentrations below the analytical detection limit of 0.0423 mg/L reflecting the very low water solubility of the test item. Based on the result it can be concluded that (Z)-octadec-9-enyl oleate will not exhibit chronic effects on aquatic invertebrates up to the limit of water solubility.