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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

A publication is available describing the toxicity of the test substance on Danio rerio after 96 hours of exposure. The study was performed according to OECD Draft 1980 and ISO TC 147/SCS/WG3 final proposal and revealed a LC50 of 530 mg/L. In addition study data of other category members are available all revealing LC50 values well above 100 mg/L. 

Key value for chemical safety assessment

LC50 for freshwater fish:
530 mg/L

Additional information

A publication is available describing the acute toxicity of the test substance to Zebrafish (Danio rerio) according to OECD Draft 1980 and ISO TC 147/SCS/WG3 under Non-GLP conditions over 96 hours of exposure and under static conditions (Wellens, 1982). The 96 hour LC50 was determined to be 530 mg/L based on the nominal concentration.

In addition, the acute toxicity of the category member 2-methylbutan-1-ol to Zebrafish (Danio rerio) was assessed according to OECD 203 under GLP conditions in a semi-static system (BASF 2011). The 96 hour LC50 was determined to be nominal greater than 120 mg/L.

 

Supplementary the acute toxicity of 3-methylbutan-1-ol (another category member) to Salmo gairdneri (new name: Oncorhynchus mykiss) was assessed according to OECD 203 under static conditions (Hoechst AG, 1979). The 96 hour LC50 was determined to be nominal 700 mg/L.

 

In conclusion, the 96h-LC50 value of the test substance and of the read across category members was determined to be greater than 100 mg/L.