Registration Dossier
Registration Dossier
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EC number: 264-165-2 | CAS number: 63449-95-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Short-term toxicity tests for algae and Daphnia are available for the substance. The EC50 values for both algae and Daphnia are between 1 and 10 (3.8 mg/L for algae and 4.8 mg/l for Daphnia). Based on the lowest available acute data for algae with an EC50 value of 3.8 mg/L, the substance does not need to be classified for acute toxicity according to Table 4.1.0 (a) of CLP.
As only one chronic value is available, for algae, the chronic C&L needs to be derived on both chronic and acute toxicity data and the most stringent outcome needs to be taken into consideration, according to Figure 4.1.1 of the CLP.
The only chronic value available is the EC10 for algae being 0.96 mg/L. In combination with the substance being readily degradable, the substance needs to be classified for chronic toxicity as Chronic 3 according to Table 4.1.0, (b) ii of the CLP Regulation. When taking into account the acute data of the other trophic level, i.e. Daphnia with an EC50 value of 4.8 mg/L, in combination with the substance being readily degradable and having a log Kow of 5.1 (so higher than 4), the substance also needs to be classified for chronic toxicity as Chronic 2, according to Table 4.1.0, (b) iii of the CLP Regulation. This is the more stringent outcome.
Overall, it can be concluded that the substance needs to be classified for the environment as Chronic 2 (H411) in accordance with the criteria outlined in Annex I of EU CLP (1272/2008/EC) and its amendments.
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