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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

The toxicity of OTNE to Daphnia magna was investigated in a 21-day chronic reproduction test according to EPA OPPTS 850.1300 / OECD Guideline 211 under GLP. Daphnia were exposed to 14C-labeled OTNE in a flow-through test at nominal concentrations of 0.02, 0.05, 0.2, 0.4 and 0.8 mg/l. Validity criteria for the test were met. The 21d-EC50 for parental survival was found to be > 0.448 mg/l, the 21d-EC50 for reproduction was found to be 0.285 (0.122 -0.663) mg/l, the 21d-EC10 for reproduction was found to be 0.044 mg/l (lowest EC10 observed) based on TWA measured concentrations.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
0.044 mg/L

Additional information