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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 96 hour LC50 is 1.3 mg/L with 95% confidence intervals of 0.76 and 3.6 mg/L.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
1.3 mg/L

Additional information

Palmer (2008) is a GLP-compliant, 96-hour semi-static toxicity test on fish following OECD guideline 203. Fathead minnows (Pimephales promelas) were exposed for 96 hours in a closed bottle, static renewal system to six mean measured concentrations of 1-propanethiol ranging from 0.31 to 7.7 mg/L. The 96-hour LC50 value was 1.3 mg/L, with a confidence interval of 0.76 to 2.1 mg/L. The no-mortality concentration and the NOEC were both 0.76 mg/L. The study is considered reliable and suitable for use for this endpoint.