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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value determined to Japanese test guideline.

Key value for chemical safety assessment

EC50 for freshwater algae:
6 mg/L
EC10 or NOEC for freshwater algae:
0.38 mg/L

Additional information

50% growth inhibition concentration ErC50 (0-48): 5.4 mg/L (95% confidence limit: 5.0-5.9 mg/L)

Maximum no effect concentration NOEC (Rate 0-48): 0.40 mg/L

50% growth inhibition concentration ErC50 (0-72): 6.0 mg/L (95% confidence limit: 5.3-6.6 mg/L)

Maximum no effect concentration NOEC (Rate 0-72): 0.38 mg/L


On the basis of the results noted in the study, classification under the CLP Regulation (EC No 1272/2008 is as follows:



Chronic aquatic toxicity, Category 2; H411: Toxic to aquatic life with long lasting effects.