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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

EC50 1-10 mg/L algae spp.

Key value for chemical safety assessment

Additional information

No data are available on the toxicity of this substance to algae. Therefore, to fill gaps in the database for single carbon chain length alcohols and commercial products (multi-constituent substances), toxicity to algae has been estimated by read-across and expert judgement. However, rather than just reading-across a single value from a different substance, this has also involved taking measured and predicted data for different trophic levels into account so as to factor in any consistent patterns in their relative susceptibilities. Furthermore, conducting a study which assesses the toxicity of fatty alcohols to algae is considered technically impractical because the substance is expected to adsorb to algae and be degraded.



The EC50 has been estimated to be 1 -10 mg/L. A range has been reported rather than a single value to reflect the uncertainty when extrapolating data from one trophic level to another.