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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
activated sludge respiration inhibition testing
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1995
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study, no deficiencies

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1995
Report date:
1995

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Fatty acids, C18-unsatd., compd. with 2-propanol, 1,1’-iminobis-, N-C12-18-(even numbered) alkyl derivs.
Cas Number:
2156594-85-1
Molecular formula:
Not applicable
IUPAC Name:
Fatty acids, C18-unsatd., compd. with 2-propanol, 1,1’-iminobis-, N-C12-18-(even numbered) alkyl derivs.

Test organisms

Test organisms (species):
activated sludge, domestic
Details on inoculum:
non adapted

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
3 h

Test conditions

Test temperature:
21°C
pH:
7.18
Nominal and measured concentrations:
Nominal concentrations tested (mg/L) 1, 3.2, 10, 32, 100, 320, 1000, 3200 and 10000
Reference substance (positive control):
yes
Remarks:
Copper (II) sulphate

Results and discussion

Effect concentrations
Duration:
3 h
Dose descriptor:
EC50
Effect conc.:
779 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
inhibition of total respiration
Remarks:
respiration rate
Remarks on result:
other: 145-4189 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The registration substance was tested in an OECD 209 Respiration inhibition test resulting in an EC50 (3h) of 779 mg/L nominal related to test material.