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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

 Fiebig (2009) indicates the analogue substances, 2-octyldodecanol (C20) and 1-dodecanol (C12) are unlikely to be acutely toxic to microorganisms at sewage treatment works as the NOEC was determined at ≥ 1,000 mg/L.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
1 000 mg/L

Additional information

Two experimental studies are available for the microbial toxicity endpoint for 2-butyloctan-1 -ol. In a reliable study, Fiebig (2009) indicates the analogue substance, 2-octyldodecanol (C20), is unlikely to be acutely toxic to microorganisms at sewage treatment works as the NOEC was determined at ≥ 1,000 mg/L, based on growth inhibition, in activated sludge from domestic sewage. In a supporting reliable study, Kirch (1994) indicates the analogue substance, 1-Dodecanol, showed no toxicity in aquatic microorganisms at concentrations of >10,000 mg/l.