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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 (72h) > 100 mg/L Scenedesmus subspicatus 

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L

Additional information

Due to the lack of data for Alcohols, C16-18 (even numbered) and C18 unsaturated, propoxylated, < 2.5 PO (CAS 70955-07-6), the toxicity to aquatic algae is assessed based on a limit test with a similar substance (alcohols ethoxylated C16, 2 EO, CAS 5274-61-3). The effect on growth of Scenedesmus subspicatus was investigated according to EU-Guideline 92/69/EWG without GLP compliance. The reported EC50 (72h) is > 100 mg/L.