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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report date:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: 92/69/EEC, C4-E (Closed bottle)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2,4-trimethyl-4-phenyl-butane-nitrile
EC Number:
422-580-8
EC Name:
2,2,4-trimethyl-4-phenyl-butane-nitrile
Cas Number:
75490-39-0
Molecular formula:
C13 H17 N
IUPAC Name:
2,2-dimethyl-4-phenylpentanenitrile

Study design

Reference substance
Reference substance:
other: Sodium benzoate

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
46
Sampling time:
28 d
Remarks on result:
other: St. deviation not determined
Details on results:
Points of degradation plot (test substance):
5 % degradation after 4 d
5 % degradation after 7 d
8 % degradation after 11 d
8 % degradation after 14 d
14 % degradation after 18 d
44 % degradation after 21 d
38 % degradation after 25 d
46 % degradation after 28 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
70 % degradation after 4 d
78 % degradation after 7 d
81 % degradation after 11 d
65 % degradation after 14 d
69 % degradation after 18 d
77 % degradation after 21 d
74 % degradation after 25 d
81 % degradation after 28 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable