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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

As per read-across from EC 272-723-1, a study under OECD 201 on Selenastrum capricornutum gave 72 hour and 96 hour EC50s of 2.0 mg/L based on the number of cells and   2.1 mg/L based on the average specific growth rate.

Key value for chemical safety assessment

EC50 for freshwater algae:
2 mg/L
EC10 or NOEC for freshwater algae:
1 mg/L

Additional information

Read-across from other, structurally closely related ZDDPs is justified because of structural similarity and analogy of properties and effects. These are apparent from the physico-chemical properties, ecotoxicity, mammalian toxicity and fate, and supported by predictions using models.