Registration Dossier
Registration Dossier
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EC number: 203-116-1 | CAS number: 103-48-0
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
In a static short term toxicity to aquatic invertebrates test the 48-hour EC50 of the test substance for Daphnia magna was determined to be nominal 22 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 22 mg/L
Additional information
In a static immobilization test, young Daphnia magna (< 24 h old) were exposed to the test item according to OECD 202 (1984). The study was conducted under static conditions over 48 hours. 20 test organisms were exposed to each test concentration and control. The test item was clearly dissolved after filtration of the saturated solution in all tested concentration levels throughout exposure. The test item concentrations were: 6.3 - 12.5 - 25 - 50 - 100 mg/L. DOC-analysis were performed at 0 h, the substance is expected to be stable under test conditions. validity criteria of the test guideline were fulfilled. The EC10 and EC50 values were calculated by probit analysis in the tested concentration range. The 48h-EC10 was determined to be 13 mg/L, the 48h- EC50 was determined to be 22 mg/L and the EC100 was determined to be 100 mg/L.
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