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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 guideline compliant algal growth inhibition study exists for DETDA.  The ErC50 and ErC10 values are 104 mg/L and 54 mg/L, respectively.  The study LOELr was 100 mg/L, and the study NOELr was 32 mg/L.
The classification and labelling (R50) and the derivation of the PNEC is driven by the experimantal result of the acute daphnia study.

Key value for chemical safety assessment

EC50 for freshwater algae:
104 mg/L
EC10 or NOEC for freshwater algae:
54 mg/L

Additional information