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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

The acute toxicity of  N,Nā€™- DIETHYL THIOUREA was evaluated with Danio rerio in a study performed according to the OECD testing guideline 203 and GLP requirements. The LC50-value was determined: LC50-96h=910 mg/L.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Dose descriptor:
Effect concentration:
910 mg/L

Additional information

The determination of the mortality of fish exposed to the test item N,N'-diethylthioureafor a duration of 96 hours was assessed according to the OECD Guideline 203. LC50 = 910 mg/L