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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The acute toxicity of (3-(3-isopropenylphenyl)butanal) to Daphnia magna is estimated to give a 48 hour EC50 of 7.7 mg/L based on read-across from an appropriate analogue substance. 

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
7.7 mg/L

Additional information

An appropriate structural analogue, 3-(3-isopropylphenyl)butanal (tradename Florhydral), has been tested for short-term toxicity to aquatic invertebrates in accordance with the standardised guidelines OECD 202 and EU Method C.2. The study was performed in line with GLP and reported to a high standard. In accordance with Klimisch (1997), the study was assigned a reliability score of 2 on the basis that the endpoint was being addressed with read-across. The 48 hour EC50 was determined to be 7.7 mg/L with 95 % confidence limits of 6.27-10.21 mg/L.

The read-across is considered to be suitable based on the structural and 'mechanistic action' similarities between the target substance (3-(3-isopropenylphenyl)butanal) and source substance (3-(3-isopropylphenyl)butanal) and their similar physico-chemical and ecotoxicological properties.