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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The acute toxicity of the Read Across test substance RA2 to Daphnia magna was determined in a 48-hour semi-static test with daily test medium renewal according to the Commission Directive 92/69/EEC, Annex Part C.2, dated December 29, 1992, and the OECD Guideline for Testing of Chemicals, Section, 2, No. 202, adopted April 04, 1984.
 
A full test with nominal test substance concentrations of 6.25, 12.5, 25, 50 and 100 mg/L and in parallel a control was performed.
 
The 48-hour NOEC (highest concentration tested without any toxic affect after the exposure period of 48 hours), and the 48-hour EC0 of RA2 to Daphnia magna were determined to be ≥ 100 mg test substance/L. Test substance concentrations in excess of 100 mg/L were not tested based on the test guidelines). The 48-hour LOEC (lowest concentration with toxic effects), the 48-hour EC50 and the 48-hour EC100 were clearly >100 mg test substance/L.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
100 mg/L

Additional information

The 48 hour NOEC and the 48 hour EC0 of Read Across substance 2 (RA2) to Daphnia magna were determined to be ≥ 100 mg test substance/L.