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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Acutely harmful to aquatic algae.
EC50 (72h) = 97 mg/L and EC10 (72) = 15.4 mg/L (nominal) for growth rate of Desmodesmus subspicatus (OECD 201)

Key value for chemical safety assessment

Additional information

In a GLP guideline study following OECD 201 green algae (Desmodesmus subspicatus) were exposed for 72 hours to

the test item [Eurofins, 2013]. Based on the low water solubility of the test substance the aquatic toxicity was determined using saturated stock solutions. The respective concentrations were determined in a pretest. The 72-h EC50 for growth rate inhibition was 97 mg/L and the EC10 (72h) was 15.4 mg/L based on loading rate.