Registration Dossier
Registration Dossier
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EC number: 250-391-9 | CAS number: 30925-07-6
Endpoint summary
Administrative data
Description of key information
Acute aquatic toxicity
Algae were the most sensitive species in acute toxicity tests with
the test substance, according to OECD guideline, resulting in a 72 -hour
EC50 of 40.1 mg/L. Based on acute aquatic toxicity results obtained, the
substance has not to be classified according to Regulation (EC) No
1272/2008 (CLP).
Chronic toxicity
The test substance was tested in an aquatic toxicity test with
algae, according to OECD guideline 201. The 72 -hour EC50 and EC10 for
growth rate was 40.1 and 7.5 mg/L. Thus, the substance has not to be
classified as environmental chronic toxic according to Regulation (EC)
No 1272/2008 (CLP).
Additional information
Short-term toxicity to invertebrates
The purpose of this study was to evaluate the influence of the test item on the mobility, respectively survival of Daphnia magna in a semi-static test system. Young Daphnia were exposed in an immobilisation test to aqueous test media containing the test item at 100 mg/L. Twenty Daphnia, divided into four groups of five animals each were exposed to the test item concentration or run as control for 48 hours. The 48-h EC50 value was determined to be 100 mg/L.
Toxicity to aquatic algae
The purpose of this study was to determine the effect of the test item on the growth of a the green algal species Desmodesmus subspicatus. Exponentially growing cultures ofDesmodesmus subspicatus were exposed to test item concentrations of 1.0, 3.2, 10.0, 31.6 and 100 mg/L. The algal growth in relation to a control culture was determined over a fixed test period of 72 hours.The 72-h EC10, EC20, EC50 for growth were determined to be 7.5, 13.4 and 40.1 mg/L, respectively. The 72-h EC10, EC20, EC50 for yield were determined to be 3.6, 5.1 and 10.3 mg/L, respectively.
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