Registration Dossier
Registration Dossier
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EC number: 271-889-2 | CAS number: 68611-23-4
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 test is available for the substance only for algae. The EC50 value for algae is >2.1 mg/l. Based on these data, the substance does not need to be classified for acute toxicity.
There are two chronic values, for algae (EC10 of 0.53 mg/l) and Daphnia (NOEC of 0.053 mg/l). As chronic data are available for two tropic levels chronic classification needs to be derived both on chronic and acute data.
The lowest chronic available value is the NOEC of Daphnia, being 0.053 mg/L. The substance is not readily biodegradable. In view of the chronic Daphnia result and the fact that the substance is non- readily biodegradable, it needs to be classified for chronic toxicity according to Figure 4.1.1 and Table 4.1.0, (b) iii, resulting in Chronic 1 (H410).
Taking into account acute data from the other tropic level (EC50 value for algae of > 2.1 mg/l) and the substance is not readily biodegradable and its log Kow is >4, this would result in Chronic 4 (H413).
Because the most stringent classification should be followed, the NOEC of the chronic Daphnia test (0.053 mg/l will lead the classification.
Overall, it can be concluded that the test material needs to be classified as H410, according to Regulation 1272/2008/EC (CLP, 2011) and its updates.
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