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EC number: 240-521-2
CAS number: 16470-24-9
LC50 (96 h) Zebra fish > 1000 mg/l
Acute toxicity for Zebra fish was
evaluated in the 96 hours screening test, according to the OECD
guideline 203. Two concentrations were administrated at 562 and 1000
mg/l with no effect (Ciba - Geigy Ltd., 1992).
The study result is supported by
other studies performed between 1973 and 1999 on Zebra fish at 96h for
which only a summary is available indicating LC50 all greater than 1000
Furthermore, a prolonged semistatic
assay over 14 days was conducted with Brachydanio rerio. Endpoints were
mortality, signs of intoxication, length and weight. The nominal
concentrations were 100, 316 and 1000 mg/l. There was no mortality and
no difference in body weight at nominal concentrations of 100 and 316
mg/l. Only at 316 mg/l one fish showed slackening in movement (Bayer
In conclusion, no fish acute
toxicity is expected for the substance
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