Registration Dossier
Registration Dossier
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EC number: 603-501-8 | CAS number: 13171-18-1
Endpoint summary
Administrative data
Description of key information
In a GLP guideline study conducted according to OECD Method 202, Daphnia magna were exposed to the test substance under static conditions in tightly sealed containers at nominal concentrations of 0, 6.25, 12.5, 25, 50, and 100 mg/L (measured concentrations at time zero were ND, 49.9, 56.1, 72.8, and 125.7 mg/L where ND=Not Detected). No Mortalities were observed at the top doses and mortalities at lower doses were not statistically different from controls. Observed abnormalities included animals sunk to the bottom and movements were abnormal but this effect is believed to be the result of a reduction in the surface tension of the test solution and has been reported with other fluorinated hydrocarbons. As expected, the substance was found to easily volatilze from water despite taking great care to minimize these losses. Based on these results, the 48 -hour LC50 forDaphnia magnais >100 mg/L and can be considered to not pose a danger in the aquatic environment.
In a GLP guideline study conducted according to OECD Method 201, green algae (Pseudokirchneriella subcapitata) were exposed to the test substance under static conditions in tightly sealed containers at a nominal limit dose concentration of 100 mg/L (measured concentrations at time zero was 129.8 mg/L). No inhibition of growth was observed. Based on these results, the 72 -hour EC50 is >129.8 mg/L and can be considered to not pose a danger in the aquatic environment.
Additional information
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