Registration Dossier

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 48h-EC50 value to Daphnia magna was 5.5 mg/L based on mean measured concentrations in freshly prepared test solutions. The ErC50 for algae is 21 mg/L based on geometric mean measured test concentrations. Since the acute EC50 values are >1 mg/L, the substance does not need to be classified for acute toxicity according to EU CLP (Table 4.1.0; a).

The only available chronic value is the EC10 of algae being 13 mg/L. According to EU CLP Figure 4.1.1, the chronic classification has to be determined based on this chronic value according to Table 4.1.0, (b) ii (as the substance is readily biodegradable) and based on the available EC50 value for Daphnia and environmental fate data according to Table 4.1.0, (b) iii. The most stringent outcome should be leading:

- 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) (ii). The substance has, however, a log Kow ≥ 4, the substance needs to be classified for chronic toxicity in Category 2 based on the available EC50 value for Daphnia magna (as it is >1 but ≤10 mg/L). This is the most stringent outcome.

Overall, it can be concluded that the substance needs to be classified for environmental hazards as Chronic Cat. 2 (H411) according to EU CLP (EC 1272/2008 and its amendments).

GHS

As the EC50 value for Daphnia magna is >1 but ≤10 mg/L, the substance needs to be classified as Acute Cat. 2 (H401) and Chronic Cat. 2 (H411) according to GHS.