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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

activated sludge respiration inhibition testing
Type of information:
experimental study
Adequacy of study:
other information
Study period:
August 2007
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
OECD 209
according to guideline
OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
GLP compliance:
not specified
Test organisms (species):
activated sludge
3 h
Dose descriptor:
Effect conc.:
> 100 mg/L
3 h
Dose descriptor:
Effect conc.:
100 mg/L
Validity criteria fulfilled:
not specified
the substance has a 3h NOEC and EC50 equal to 100 mg/L and >100 mg/L, respectively in the activated sludge respiration inhibition testing.

Description of key information

Based on the OECD 209, the substance has a 3h NOEC and EC50 equal to 100 mg/L and >100 mg/L, respectively.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
100 mg/L

Additional information