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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

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.