Registration Dossier
Registration Dossier
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EC number: 274-434-6 | CAS number: 70210-37-6
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
TL50(96h) = 446 mg/l
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 446 mg/L
Additional information
Three short-term toxicity tests to fish are available. The toxicity potential is investigated with three different specie (Lepomis macrochirus, Leuciscus idus and Salmo trutta). All tests were performed according to internal methods.
Despite the key study was not carried out according to a OECD Guideline and the test substance purity was ca. 55 %, it has been chosen as a benchmark study for the safety assessment, because it turns out to be the most detailed and complete test among those available.
Healthy bluegill sunfish fingerlings were used as test animals. The percentages of survival were recorded for 5 concentrations and the untreated control. In addition, the main behavioral reactions and their duration, following the dose administration, were recorded.
The reported result is expressed in terms of four - day medium tolerance limit, but in this case it can be compared to a LC50 value, considering that mortality was the discriminating factor in the study.
The TL50 values, reported in the two other studies, were estimated after an observation period of 48h and they are very close to the result of the first test.
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