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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

Activated sludge respiration inhibition test with SR-245

Key value for chemical safety assessment

EC50 for microorganisms:
1 µg/L
EC10 or NOEC for microorganisms:
1 µg/L

Additional information

The results of LC50> 100mg/L NOEC≥ 100mg/L indicate that under the conditions of the present test SR-245 was not toxic to waste water bacteria at a concentration of ca. 100 mg/L although this study was performed above water solubility level. The value of 1µg/l is taken as the actual water solubility value of the substance.

The substance water solubility value of 1ug/l is taken as a worst case scenario for PNEC calculation.