Registration Dossier
Registration Dossier
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EC number: 226-040-0 | CAS number: 5240-32-4
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 results for Daphnia and algae are available for the substance. The EC50 value for Daphnia is 14.1 mg/L. The ErC50 for algae is 5.3 mg/L.
Since the acute EC50 values are > 1 mg/L, the substance does not need to be classified for acute aquatic toxicity according to Regulation 1272/2008/EC (CLP: Table 4.1.0; a) and its updates.
The only available chronic value is the EC10 of algae being 1.8 mg/L. According to CLP Figure 4.1.1, the chronic classification has to be determined based on this chronic value according to Table 4.1.0, (b) (i) (as the substance is not readily biodegradable) and based on adequate acute toxicity data of the other trophic level, being the EC50 value for Daphnia, in combination with environmental fate data according to Table 4.1.0, (b) (iii).
The most stringent outcome should be leading:
- The substance is not readily biodegradable. Based on the EC10 > 1 mg/L, the substance does not need to be classified for chronic toxicity according to Table 4.1.0, (b) (i)
- As the EC50 value for Daphnia is >10 - <=100 mg/L and the substance is not readily biodegradable, the substance needs to be classified for chronic toxicity in Category 3 according to Table 4.1.0, (b) (iii). This is the most stringent outcome.
Overall, it can be concluded that the substance needs to be classified for aquatic environmental hazards as Chronic Cat. 3 (H412: Harmful to aquatic life with long lasting effects) according to Regulation 1272/2008/EC (CLP) and its updates.
In addition, as the ErC50 for algae is >1 but ≤ 10 mg/L, the substance needs to be classified as Acute Cat. 2 (H401: Toxic to aquatic life) according to GHS.
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