Registration Dossier
Registration Dossier
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EC number: 638-734-4 | CAS number: 157248-24-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Conclusion on classification
Aquatic acute toxicity
48 h, EC50 (Daphnia magna): >100 mg/L (nominal)
72 h, ErC50 growth rate (Raphidocelis subcapitata): >100 mg/L (nominal)
96 h, LC50 (Danio rerio): 1.8 mg/L (above water solubility, achieved using Tween20)
Aquatic chronic toxicity
72 h, ErC10 growth rate (Raphidocelis subcapitata): >100 mg/L (nominal)
28 d, NOEC (Cyprinus carpio): >100 mg/L (nominal)
Classification, Labeling, and Packaging Regulation (EC) No 1272/2008
The available experimental test data of the substance are reliable and suitable for classification purposes under Regulation (EC) No. 1272/2008. The test item was determined to be not readily biodegradable. In the aquatic tests conducted, the test substance showed no toxic effects on the tested species up to the solubility limit of the pure substance. The determined EC50 for Daphnia magna was >100 mg/L (nominal) and for Raphidocelis subcapitata was >100 mg/L (nominal) (growth rate). The EC10 (growth rate) for Raphidocelis subcapitata was determined to be >100 mg/L (nominal). In fish studies the solvent Tween was used to achieve exposure concentrations above the solubility limit of the pure substance. Exposure for 96 h with concentrations above the solubility limit led to death in Danio rerio resulting in a LC50 of 1.8 mg/L. 28 day exposure of lower concentrations, still above the solubility limit of the pure substance, resulted in no effects on Cyprinus carpio and a NOEC of >100 mg/L (nominal). As the solubility limited to the substance was clearly exceeded in the short-term fish study, this study is not considered for deriving a classification. Based on the results obtained in studies testing up to the solubility limit of the substance, the substance is not considered to require classification for short-term (acute) and long-term (chronic) aquatic toxicity according to Regulation (EC) No 1272/2008 (CLP).
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