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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1986
Report date:
1986

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD 301A
Version / remarks:
Modified AFNOR test
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Trisodium bis[2-hydroxy-5-nitro-3-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]benzenesulphonato(3-)]cobaltate(3-)
EC Number:
289-068-2
EC Name:
Trisodium bis[2-hydroxy-5-nitro-3-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]benzenesulphonato(3-)]cobaltate(3-)
Cas Number:
85959-73-5
Molecular formula:
C32H22CoN8O16S2.3Na
IUPAC Name:
Trisodium bis[2-hydroxy-5-nitro-3-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]benzenesulphonato(3-)]cobaltate(3-)
Test material form:
solid: particulate/powder

Study design

Oxygen conditions:
not specified
Inoculum or test system:
sewage, domestic (adaptation not specified)
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
40 mg/L
Based on:
test mat.
Parameter followed for biodegradation estimationopen allclose all
Parameter followed for biodegradation estimation:
DOC removal
Parameter followed for biodegradation estimation:
TOC removal
Reference substance
Reference substance:
other: glucose

Results and discussion

Test performance:
temperature 22 - 24 °C
% Degradation
Key result
Parameter:
% degradation (DOC removal)
Value:
0
Remarks on result:
other: sampling time not reported

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
not readily biodegradable