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EC number: 939-638-8 | CAS number: 90268-37-4
In the Klimisch 1 (since read across: Klimisch 2 for this substance) GLP study from Straube (2016) the chronic toxicity of Butanedioic acid, sulfo-, 1,4-diisodecyl ester, sodium salt on earthworms (Eisenia fetida) reproduction and growth in artificial soil was determined in an 56 day test according to OECD 222. The test was performed with Control, 1.3, 13, 26, 52 and 104 mg a.i./kg soil dry weight. The biological results are based on nominal concentrations since the analysis of the stock solution confirmed correct preparation of this solution and the preparation and application of the application solutions was checked and documented by weighing.
Eight replicates with 10 worms each were set up for the control and 4 replicates for each test group. After 28 days 0, 0, 0, 0, 0, 0 and 0% mortality was observed in the control and at nominal test concentrations of 1.3, 13, 26, 52 and 104 mg a.i./kg soil dry weight, respectively.
The reproduction per pre replicate container with 10 adult worms was 190, 165, 171, 150, 170, and 170 living offspring per container (10 worms) control and at nominal test concentrations of 1.3, 13, 26, 52 and 104 mg a.i./kg soil dry weight, respectively.
The overall NOEC for reproduction, mortality, growth and food consumption was equal or greater than the highest test concentration, i.e. >= 104 mg/ kg dw.
The result will not be considered for the risk assessment.
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