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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
n-phenyl n-acetoacetyl glycine ethyl ester
IUPAC Name:
n-phenyl n-acetoacetyl glycine ethyl ester
Test material form:
liquid

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
natural water: freshwater
Details on inoculum:
River water
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
2 mg/L
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
O2 consumption

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
45
Sampling time:
28 d

Applicant's summary and conclusion

Conclusions:
At 28-days the biodegradation was determined to be 45%.
Executive summary:

Using the OECD 301D closed bottle testing, the biodegradation at 28 -days was determined to be 45%.