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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
1990
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: well performed study but only weak documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1990
Report date:
1990

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: 79/831/EWG (part C),
Qualifier:
equivalent or similar 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:
N-[4-(aminocarbonyl)phenyl]-4-methoxy-3-nitrobenzamide
EC Number:
298-790-7
EC Name:
N-[4-(aminocarbonyl)phenyl]-4-methoxy-3-nitrobenzamide
Cas Number:
93839-20-4
Molecular formula:
C15H13N3O5
IUPAC Name:
N-(4-carbamoylphenyl)-4-methoxy-3-nitrobenzamide
Details on test material:
purity: 95 - 97 % , contains residual water

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, domestic, non-adapted
Details on inoculum:
no pretreatment of the inoculum
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
212 mg/L
Based on:
test mat.
Reference substance
Reference substance:
not specified

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (O2 consumption)
Value:
< 5
Sampling time:
7 d
Parameter:
% degradation (O2 consumption)
Value:
< 5
Sampling time:
14 d
Parameter:
% degradation (O2 consumption)
Value:
< 5
Sampling time:
21 d
Parameter:
% degradation (O2 consumption)
Value:
< 5
Sampling time:
28 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable
Conclusions:
Baes on the test result the substance has to considered as not readily biodegradable
Executive summary:

The substance was tested for ready biodegradation according to 79/831/EWG (part C), that is equivalent or similar to OECD guideline 301 C. In this manometric respiration test no biodegradation as found during 28 days.