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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Toxicity to microorganisms: EC50 value was higher than 1000 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L

Additional information

Toxicity to microorganisms

The toxicity of SIM-Ester to activated sludge was examined in a respiration inhibition test (OECD 209, EU Method C.11, GLP compliance) at nominal concentrations of 5,16 and 50 mg/L for an exposure time of 3h. Under the conditions of the study the test item had no significant inhibitory effect (< 15%) on the respiratory rate of the sludge and thus the EC50 value was assessed to be >1000 mg/L.