Registration Dossier
Registration Dossier
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EC number: 225-263-0 | CAS number: 4747-07-3
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 results for algae and Daphnia are available for the substance, based on ECOSAR neutral organic predictions documented in QPRFs. The EC50 value for Daphnia is 2.30 mg/l, whereas the ErC50 for algae is 3.15 mg/l, so both values between 1 and 10 mg/L. Based on the lowest available acute data for Daphnia with an EC50 value of 2.30 mg/L, the substance does not need to be classified for acute aquatic toxicity according to Table 4.1.0 (a) of CLP.
As only one reliable long-term toxicity endpoint is available, chronic classification needs to be based on both chronic and acute data in combination with the biodegradability and log Kow of the substance and the worst case classification needs to be applied. The only chronic available value is the ErC10 of algae being 1.15 mg/L. Because the substance is readily biodegradable, it does not need to be classified for chronic toxicity based on the chronic data, according to Table 4.1.0, (b) i. Based on its rapid degradability, the log Kow of < 4 (3.6) and acute toxicity data for the other trophic level with a value between 1 and 10 mg/L (Daphnia EC50 of 2.30 mg/L), the substance does not need to be classified for chronic toxicity based on acute data, according to Table 4.1.0 (b)(iii). Overall, it can be concluded that Diola does not need to be classified for the environment according to Regulation 1272/2008/EC (CLP, 2008) and its amendments.
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