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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

OECD Guideline 202, EU Method C2, GLP, key study, validity 1: 48h-EC50 = 53 mg/L.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
53 mg/L

Additional information

Two short-term aquatic toxicity studies are available for the registered substance. In a study of reliability (1), the 48h-EC50 to Daphnia magna of Tris(2 -butoxyethyl)phosphate to Daphnia magna was determined to 53 mg/L (nominal) based on immobilisation (Hoger, 2010). In older study of reliability (2), the 48–hEC50 was determined to 75 mg/L (nominal).

For the purpose of chemical safety assessment, the 48h-EC50 of 53 mg/L is selected as key value.