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With high probability acutely not harmful to aquatic organisms, no toxic effects occur in the range of water solubility.

The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.

This aquatic toxicity assessment of the test substance was based on SNIF (Structure Notification Interchange Format) data provided by the ECHA. According to these data, acute tests on all three trophic levels were performed to examine the aquatic toxicity of the test substance. The L(E)C 50 values for fish, algae and daphnids exceeded the range of water solubility (about 0.027 mg/L) of the tested item in all cases. The NOEC on the reproduction of algae and the NOEC on daphnids in long term studies were determined to be greater than the water solubility of the substance, too. The IC50 of the test compound on activated sludge was determined to be 202 mg/L (nominal concentration). Thus, the compound is considered with high probability acutely not harmful to aquatic organisms in the range of water solubility.