Registration Dossier
Registration Dossier
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EC number: 275-654-5 | CAS number: 71598-17-9
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The LC50 was determined to be 22 mg/L in a 96 h acute toxicity study to Salmo gairdneri according to OECD guideline 203.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 22 mg/L
Additional information
In a 96 h acute toxicity key study (BASF SE, 85/111, 1986), Salmo gairdneri were exposed to the test item according to OECD guideline 203. The test item (CAS 71598 -17 -9) was applied in a mixture consisting of 24 % active substance and 20 % acetic acid at nominal concentrations of 3.2, 6.3, 12.5, 25.0, 50.0 and 100 mg/L. No analytical monitoring was done in this test. The concentration levels were determined in a pretest with concentration levels of 10, 100 and 500 mg/L.
The 96 h LC50 value was determined to be ca. 22 mg/L. The NOEC value, based on mortality effects was 12.5 mg/L. Apathy and tumbling symptoms were observed during the study.
In a 96 h acute toxicity supporting study (BASF SE, 10F0453/885259,1989), Leuciscus idus were exposed to the test item (CAS 71598 -17 -9) according to DIN 38 412. The test item was applied in a mixture of unknown composition at nominal concentration levels of 10, 21.5, 46.4 and 100 mg/L. No analytical monitoring was done in this test. The concentration levels were determined in a pretest with concentration levels of 10, 100 and 1000 mg/L.
The 96 h LC50 value was determined to be between 10 and 22 mg/L. The NOEC value, based on mortality effects was about 10 mg/L, respectively.
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