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EC number: 943-553-1 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The acute toxicity to aquatic invertebrates of the test substance was assessed according to OECD Test Guideline 202. The 48 hour EC50 was 12 mg/L with 95 % confidence limits of 11 - 13 mg/L. The NOEC was 2.0 mg/L and the LOEC was 7.0 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 12 mg/L
Additional information
The acute toxicity to aquatic invertebrates of the test substance was assessed according to OECD Test Guideline 202.
Following a preliminary range-finding test, twenty daphnids (4 replicates of 5 animals) were exposed to an aqueous solution of the test item at nominal concentrations of 1.0, 3.2, 10, 32 and 100% v/v saturated solution for 48 hours at a temperature of 20 °C to 23 °C under static test conditions.
Analysis of the test preparations at 0 hours showed measured test concentrations to range from 0.67 to 40 mg/L. There was no significant change in the measured concentrations at 48 hours and so the results are based on 0-Hour measured test concentrations only.
Exposure of Daphnia magna to the test item gave the following results based on the 0-Hour measured test concentrations:
The 48 h EC50 was 12 mg/L with 95 % confidence limits of 11 - 13 mg/L. The NOEC was 2 mg/L and the LOEC was 7 mg/L.
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