Registration Dossier
Registration Dossier
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EC number: 214-011-5 | CAS number: 1072-62-4
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
LC50 (96 h) = 250 mg/L (BASF AG, 1995)
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 250 mg/L
Additional information
The acute toxicity to fish was conducted
according to OECD guideline 203 (BASF AG, 1995). 10 zebra fish
(Brachyodanio rerio) per concentration were exposed to test substance
concentrations of 0 (control), 21.5, 46.4, 100, 215 and 464 mg/L under
static conditions. Mortality and sublethal effects were observed after
1, 4, 24, 48, 72 and 96 hours.
Mortality was observed at 464 mg/L. All animals were found dead after 24
hours. Tumbling was observed in the two highest testing groups. At 215
mg/L fish showed tumbling between 24 and 72 hours of exposure. In the
highest testing group tumbling was observed after 4 hours.
Results were based on nominal and analytically determined values:
Results (nominal):
LC50 (96 hours) = 250 mg/L
NOEC = 100 mg/L
Results (analytical):
LC50 (96 hours) = 232 mg/L
NOEC = 89 mg/L
The analytically detected concentrations were initially in the range of
89.2% - 101.3% and after about 96 hours between 89.0%- 98.3% of the
nominal concentrations.
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