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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study, GLP compliance

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD 301B
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
bis[2,2,6,6-tetramethyl-1-(octyloxy)piperidin-4-yl] decanedioate
EC Number:
687-535-9
Cas Number:
122586-52-1
Molecular formula:
C44H84N2O6
IUPAC Name:
bis[2,2,6,6-tetramethyl-1-(octyloxy)piperidin-4-yl] decanedioate

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, domestic, non-adapted
Duration of test (contact time):
28 d
Reference substance
Reference substance:
aniline

Results and discussion

% Degradation
Parameter:
not specified
Value:
19
Sampling time:
28 d
Details on results:
Points of degradation plot (testsubstance):
2 % degradation after 3 d
4 % degradation after 7 d
6 % degradation after 10 d
11% degradation after 17d
14% degradation after 20 d
18% degradation after24 d
20 % degradation after27 d
19%degradation after28 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
4 % degradation after 3 d
59 %degradation after7 d
71 % degradation after 10 d
82%degradation after 17 d
89% degradation after20 d
91 %degradation after24 d
92% degradation after27 d
92%degradation after28 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable