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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

OECD Guideline 201 (Alga, Growth Inhibition Test)

Key value for chemical safety assessment

EC50 for freshwater algae:
1 200 mg/L

Additional information

Two studies are available to determine the toxicity to aquatic algae, both done according to OECD 201. One supporting study: Memmert (1991) gave a result of LC50 (72h) based on growth rate of >1000 mg/L., the tested material is the same organic structure, but sodium salt. The results of the study of Riva (2003) performed with CAS 1195028 -55 -7, allowed to give a figure of EC50 (72h) based on growth rate of 1200 mg/L. The substance is not harmful to aquatic algae.