Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

EC50 = 100 mg/l

Key value for chemical safety assessment

EC50 for microorganisms:
100 mg/L

Additional information

Some studies on the substance are available to assess the toxicity of the substance to microorganisms, but each of them presents some drawbacks: in two of them a water solution with 20 % of the substance was tested and for the other just the summary is available. The SefePharma Laboratories Ltd. study (1993) can be considered as the most reliable, since even if the tested substance concentration is low, the test was performed at 1000 mg/l, with no inhibitory effect. This set the result at > 200 mg/l, calculated on the substance effective concentration.

All of those studies demonstrate that the substance does not inhibit the degradation activity of activated sludge in concentrations higher or equal to 100 mg/l.