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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
441-070-6
EC Name:
-
Cas Number:
61826-76-4
Molecular formula:
C14H11NO2
IUPAC Name:
(2S)-2-hydroxy-2-(3-phenoxyphenyl)acetonitrile

Study design

Reference substance
Reference substance:
other: Na-benzoate

Results and discussion

% Degradation
Key result
Parameter:
% degradation (CO2 evolution)
Value:
13
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):
0 % degradation after 10 d
13 % degradation after 28 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
48 % degradation after 6 d
69 % degradation after 10 d
89.4 % degradation after 28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
other: not readily biodegradable
Conclusions:
The test item is mot readily bedegradable as the biodegration reached only 13% after 28 days.
Executive summary:

The test item is mot readily bedegradable as the biodegration reached only 13% after 28 days.