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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1992
Report date:
1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD 301 D (CLOSED BOTTLE TEST)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
A mixture of: 2,2,6,6-tetramethylpiperidin-4-yl-hexadecanoate; 2,2,6,6-tetramethylpiperidin-4-yl-octadecanoate
EC Number:
415-430-8
EC Name:
A mixture of: 2,2,6,6-tetramethylpiperidin-4-yl-hexadecanoate; 2,2,6,6-tetramethylpiperidin-4-yl-octadecanoate
Cas Number:
86403-32-9
Molecular formula:
C25H49NO2; C27H53NO2
IUPAC Name:
Reaction mass of 2,2,6,6-tetramethylpiperidin-4-yl hexadecanoate and 2,2,6,6-tetramethylpiperidin-4-yl octadecanoate

Study design

Reference substance
Reference substance:
other: Sodium benzoate

Results and discussion

% Degradation
Value:
37.5
Sampling time:
28 d
Details on results:
Points of degradation plot (Test substance)
20.5 % degradation after 5d
23.9 % degradation after 14d
41 % degradation after 21d
37.5 % degradation after 28d


BOD5 / COD results

Results with reference substance:
Points of degradation plot (referance substance)
56.9 % degradation after 5d
77.8 % degradation after 14d
83.8 % degradation after 21d
86.8 % degradation after 28d

Any other information on results incl. tables

Comments:

Dispersion of the substance with ultra sone.

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegadable