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Short-term toxicity to aquatic invertebrates

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Description of key information

EC50 > 1000 mg/L

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
1 000 mg/L

Additional information

The study on acute toxicity to daphnids with the structural analogue (SA01) meets the requirements of EEC Directive 79/831 Annex V Methods for the determination of ecotoxicity 5.1.2 Acute toxicity for daphnia and the OECD Guidelines for Testing of Chemicals, Section 2 - Effects on biotic systems 202 Daphnia sp., 14-day reproduction test (including an acute immobilisation test). The study was conducted in compliance with GLP.

The concentrations tested were 0 / 560 / 1000 mg/L. Immobility was observed at 1000 mg/L.

The test batches were present as red solutions. No segregation or formation of precipitates could be observed.

In order to determine the substance concentration, water samples were taken at study end. All mean values were above 80 % of the nominal concentration.

Testing of SA01 for acute toxicity in Daphnia magna (water flea) over a total of 48 hours yielded the following immobility values:



after 24 hours (mg/L)

after 48 hours (mg/L)





> 1000

> 1000