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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

In an OECD 202 Acute Immobilisation, the 48-hour EC50 of methyl cinnamic aldehyde alpha (cyprinal) was determined to be 9.9 mg/L in Daphnia magna. 



Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
9.9 mg/L

Additional information

In a key Daphnia magna acute immobilisation test conducted according to OECD Guideline 202 (Bayer, 1999), daphnids (20/concentration) were exposed to the test material (Methyl cinnamic aldehyde alpha; CAS# 101-39-3) at concentrations of 0, 0.5, 1.0, 2.0, 4.0, 8.0, 16, or 32 mg/L for a period of 48 hours in a static system.

 

The number of immobile daphnids were observed after 24 and 48 hours post-exposure.

 

Based on the results observed, the 48-hour EC50 of methyl cinnamic aldehyde alpha was determined to be 9.9 mg/L in Daphnia magna.