Registration Dossier
Registration Dossier
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EC number: 203-250-0 | CAS number: 104-90-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
A 48 hour aquatic invertebrate toxicity test was carried out according to EU Method C.2 and OECD Guideline 202 Acute Toxicity for Daphnia. Daphnia magna were exposed in a static text over 48-hours to nominal concentrations of test item of 10, 20, 40, 80, 160 and 320 mg/L. The 48-hour median effect concentration (EC50) for immobility, based on measured concentrations of test item, was found to be 39.6 mg/L (95 % confidence limits of 31.1 and 50.8 mg/L). At the lowest test concentration, 9.24 mg/L, 5 % immobility was seen after 48 hours. The lowest measured concentration at which 100 % immobilization occurred was 153 mg/L. The results of chemical analysis indicated that intended exposure levels were achieved and adequately maintained during the test.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 39.6 mg/L
Additional information
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