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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The effect of 2,5,8,11-tetramethyl-6-dodcyne-5,8-diol on the growth of Desmodesmus subspicatus has been investigated over a 72-Hour period gave a No Effect Concentation (NOEC) based on growth rate of 25 mg/l and a Lowest Observed Effect Concentration (LOEC) of 50 mg/l, also based on growth rate. EC50 is 44 mg/l based on growth rate.

Key value for chemical safety assessment

EC50 for freshwater algae:
44 mg/L
EC10 or NOEC for freshwater algae:
25 mg/L

Additional information