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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-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 towards Daphnia magna was investigated according to a protocol similar to OECD Guideline 202, under GLP. Daphnia were exposed to water accommodated fractions (WAF) of 14C-labeled OTNE with nominal concentrations of 0.50, 0.75, 1.1, 1.7 and 2.5 mg/l in a semi-static system and observed for 48 hours. Validity criteria for the test were met. The 48h-EC50 was found to be 1.38 mg/l (95% CL 1.32 -1.44 mg/l) based on mean measured concentrations.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
1.38 mg/L

Additional information