Registration Dossier
Registration Dossier
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EC number: 221-053-8 | CAS number: 2986-54-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Degradation
Biodegradation: Not readily biodegradable: 1% (O2 consumption) after 28 d (EU Method C.4-E)
Aquatic acute toxicity
48 h, EC50 (Daphnia magna): 0.61 mg/L (measured geometric mean)
72 h, ErC50 (Pseudokirchneriella subcapitata): 2.47 mg/L (measured geometric mean)
Aquatic chronic toxicity
72 h, ErC10 (Pseudokirchneriella subcapitata): 1.04 mg/L (measured geometric mean)
Classification according to CLP
Based on the data above, the acute aquatic toxicity EC50 is < 1 mg/L. Thus, the test substance needs to be classified as Aquatic Acute 1 (H400) according to the 5th ATP of the Regulation (EC) No 1272/2008 (CLP). An acute M-Factor of 1 was derived. Valid chronic aquatic toxicity data are available for aquatic algae. Since chronic aquatic data are only available for one trophic level the acute data need to be considered for the chronic classification as well. The substance is not readily biodegradable and the EC50 (48 h) of 0.61 mg/L from the acute study leads to the most stringent chronic classification. Based on this result the substance needs to be classified and labelled as Aquatic Chronic 1 (H410) with a chronic M-Factor of 1 according to the 6th ATP of Regulation (EC) No 1272/2008 (CLP).
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