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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The substance with CAS 133-66-4 is with high probability acutely not harmful to aquatic algae.

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L
EC10 or NOEC for freshwater algae:
100 mg/L

Additional information

According to the study available on a close structural analogue (CAS 16090 -02 -1), there were no effects recognized on the test organisms at the test concentrations of the substance of 100 mg/L.

Therefore the substance with CAS 133-66-4 is considered to be with high probability acutely not harmful to aquatic algae.