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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:
before 1993-10-28
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: information granted by ECHA on substance registered before more than 12 years
Title:
Unnamed

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
Deviations:
not specified
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
413-920-6
EC Name:
-
Cas Number:
88949-33-1
Molecular formula:
C30H20N2O2
IUPAC Name:
3,6-bis({[1,1'-biphenyl]-4-yl})-1H,2H,4H,5H-pyrrolo[3,4-c]pyrrole-1,4-dione

Study design

Duration of test (contact time):
28 d
Reference substance
Reference substance:
acetic acid, sodium salt

Results and discussion

% Degradation
Parameter:
% degradation (TOC removal)
Value:
< 10
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):1.9 % degradation after 2 d4.8 % degradation after 5 d5.4 % degradation after 9 d5.4 % degradtaion after 12 d5.4 % degradation after 21 d5.6 % degradation after 28 dPoints of degradation plot (reference substance)0 % degradation after 2 d10.4 % degeradation after 5 d30.6 % degradation after 9 d35.8 % degradation after 12 d46.2 % degradation after 21 d76.5 % degradation after 28 d82 % degradation after 28 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable