Registration Dossier
Registration Dossier
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EC number: 225-969-9 | CAS number: 5188-07-8
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 1.8 mg/L
Additional information
Freshwater zebra fish (Danio rerio) were exposed to nominal concentrations of sodium methanethiolate active ingredient (a.i.) at 0, 0.95, 1.7, 3.1, 5.6 and 10 mg /L for 96 hours in an acute study performed according to the OECD TG 203 and EEC Method C.1 under semi-static conditions (Gancetet al., 2004a). Mean analytical values were 0, 0.11, 0.53, 1.74, 4.98, and 7.84 mg a.i./L, respectively. Mortality was 100% at the two highest concentrations and 30% at the 1.74 mg/L concentration after 96 hours. During the study, there were no abnormal behavioral signs in the controls or treated fish. By the end of the study, some fish in the higher concentration test groups displayed signs such as red gills and reduced mobility. The 96-hr LC50, based on mean measured concentrations, was 1.8 mg/L.
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