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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

EC10/EC50 (3h) > 1000 mg/L (nominal) for activated sludge (OECD 209)

Key value for chemical safety assessment

Additional information

One study is available investigating the toxicity of Bis(2 -propylheptyl) hexanedioate to aquatic microorganisms. The study was performed according to GLP and OECD guideline 209 using domestic activated sludge as inoculum (BASF 2014). Test substance concentrations between 62.5 and 1000 mg/L were tested. After 3h incubation time inhibition of respiration was recorded to be between 7 and -8% showing no monotone concentration response. Thus, the ECx calculation is not meaningful and the EC10 (3h) is assumed to be > 1000 mg/L.