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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Full study report is not available as the data is > 12 year old and summaries have been prepared using data provided by ECHA. Also, no guideline is mentioned.

Data source

Reference
Reference Type:
other: Information from migrated NONS file, as per inquiry number 06-0000021645-69-0000, permission to refer granted by ECHA
Title:
Unnamed
Year:
1993

Materials and methods

Test guideline
Guideline:
other: No data available
Principles of method if other than guideline:
No data available
GLP compliance:
not specified

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
Constituent 2
Reference substance name:
3,6- bis-biphenyl-4-yl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione
IUPAC Name:
3,6- bis-biphenyl-4-yl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione

Study design

Oxygen conditions:
not specified
Inoculum or test system:
not specified
Reference substance
Reference substance:
other: Sodium acetate

Results and discussion

% Degradation
Parameter:
not specified
Value:
< 10
Sampling time:
28 d
Details on results:
Points of degradation plot (test sUbstance):
1.9 % degradation after 2 d
4.8 % degradation after 5 d
5.4 % degradation after 9 d
5.4 % degradation after 12 d
5.4 % degradation after 21 d
5.6 % degradation after 28 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
0 % degradation after 2 d
10.4 % degradation after 5 d
30.6 % degradation after 9 d
35.8 % degradation after 12 d
46.2 % degradation after 21 d
76.5 % degradation after 28 d
82 % degradation after 28 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable