Registration Dossier

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:
other: Body responsible for the test
Title:
Unnamed
Year:
1988

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
402-400-4
EC Name:
-
Cas Number:
54660-00-3
Molecular formula:
C18H12N2O2
IUPAC Name:
3,6-diphenyl-1H,2H,4H,5H-pyrrolo[3,4-c]pyrrole-1,4-dione

Study design

Reference substance
Reference substance:
aniline

Results and discussion

% Degradation
Parameter:
not specified
Value:
12
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):
0% degradation after 6 d
5% degradation after 9 d
6% degradation after 13 d
9% degradation after 16 d
12% degradation after 20 d
12% degradation after 23 d
12% degradation after 27 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
8 % degradation after 6 d
65 % degradation after 9 d
77 % degradation after 13 d
84 % degradation after 16 d
92 % degradation after 20 d
96 % degradation after 23 d
99 % degradation after 27 d

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Interpretation of results:
other: not readily biodegradable