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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

A valid OECD 201 study in Desmodesmus subspicatus according to GLP is available. The EC10 and EC50 for growth rate based on nominal concentrations are:  EC10: 0.091 mg/l and EC50: 0.393 mg/l, respectively.

Key value for chemical safety assessment

EC50 for freshwater algae:
0.393 mg/L
EC10 or NOEC for freshwater algae:
0.091 mg/L

Additional information

The median growth inhibiting concentration (ErC50/EyC50) and the low-effect concentrations (ErC10/EyC10,ErC20/EyC20), based on the average specific growth rate and the yield (algal biomass production) within 3 days, of Fatty acids, C18-unsatd.,

dimers, compds. with coco alkylamines to the green alga Desmodesmus subspicatus, were investigated over a period of 72 h according to OECD 201. The EC10 and EC50 for growth rate based on nominal concentrations are: EC10: 0.091 mg/l and EC50: 0.393 mg/l, respectively.