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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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)
Rationale for reliability incl. deficiencies:
other: Guideline study. Scientifically acceptable.

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
(E)-3-formylbut-2-enyl acetate
EC Number:
247-825-4
EC Name:
(E)-3-formylbut-2-enyl acetate
Cas Number:
26586-02-7
Molecular formula:
C7H10O3
IUPAC Name:
(2E)-3-methyl-4-oxobut-2-en-1-yl acetate
Details on test material:
- Name of test material (as cited in study report): C5-acetat

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, domestic (adaptation not specified)
Duration of test (contact time):
14 d
Initial test substance concentration
Initial conc.:
100 mg/L
Based on:
test mat.
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
O2 consumption
Reference substance
Reference substance:
aniline

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
68
Sampling time:
14 d
Details on results:
Kinetic of test substance (in %):
< 10 after 4 ca. 55 after 7 ca. 55 after 14 ca. 55 after 21 > 60 after 28 Kinetic of control substance (in %):
ca. 60 after 9 day(s)
> 60 after 10 day(s)

Applicant's summary and conclusion

Interpretation of results:
other: biodegradable