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Ecotoxicological information

Toxicity to microorganisms

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Link to relevant study record(s)

Reference
Endpoint:
activated sludge respiration inhibition testing
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because there is no emission to a sewage treatment plant
the study does not need to be conducted because the substance is highly insoluble in water, hence indicating that aquatic toxicity is unlikely to occur
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
Estimated Water Solubility (g.L-1): <0.001
Comments
For the preliminary estimation, the majority of the 1 mg sample did not dissolve after 10 minutes
vigorous shaking, 35 minutes in the ultra-sonic bath and being left to stand for 4 hours. It is expected that the solubility of the test material is below the limit of detection of the HPLC system.

Description of key information

The study was waived based upon the poor water solubility of the test substance. The decison to waive is justified by the ECOSAR model. In addition, there is no exposure of the substance to a sewerage treatment works.

Key value for chemical safety assessment

Additional information