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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

1,3-bis(3-methyl-2,5-dioxo-1H-pyrrolinylmethyl)benzene showed 3.252 %

respiration inhibition (mean of three replicates) of activated sludge at the highest test item concentration of 100 mg/L. An EC10 and an EC50 of >100 mg/L were obtained in this test. Thus, no effects up to the limit of the water solubility have been found.

Key value for chemical safety assessment

EC50 for microorganisms:
100 mg/L
EC10 or NOEC for microorganisms:
100 mg/L

Additional information

The key value EC50 was reported as > 100 mg/L and the NOEC as ≥ 100 mg/L.