Registration Dossier
Registration Dossier
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EC number: 232-452-1 | CAS number: 8031-44-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
The toxicity of the substance to aquatic organisms was evaluated in the short-term toxicity test to Daphnia (48 hours) and in the toxicity to aquatic algae (72 hours). Both tests were performed according to the current OECD Guidelines and EU C-Methods under GLP conditions.
The substance is readily biodegradable and therefore it is not expected to remain in water for a long time. It is also characterised by a very low water solubility (1.24 mg/l, at 20 °C, pH 6.6) suggesting that it could not be so bioavailable for the aquatic organisms and therefore it could exhibit a low aquatic toxicity.
The following data were obtained after the exposure of daphnia and algae to the substance.
Daphnia: EC50 (48 h) > 1.1 mg/l (measured geometric mean) or EC50 > 100 mg/l (loading rate or above its solubility in test medium)
Algae: ErC50 (72 h) > 100 mg/l (loading rate or above its solubility in test medium)
NOErC (72 h) = 100 mg/l (loading rate or above its solubility in test medium)
Conclusion on classification
The effective levels obtained for the two aquatic organisms reveal that the substance does not present any hazards for daphnia or algae up to the solubility of the substance in the test medium. Since the substance is poorly soluble and no acute toxicity was recorded at levels up to the water solubility and also is readily biodegradable no classification for acute or chronic aquatic toxicity is proposed according to the CLP Regulation (EC) No. 1272/2008. In addition, the NOErC obtained is above the water solubility of the substance to the test medium and no classification for aquatic toxicity is thus suggested.
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