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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:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2006

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
(1R,2S,5R)-5-methyl-2-(propan-2-yl)-N-[2-(pyridin-2-yl)ethyl]cyclohexanecarboxamide
EC Number:
700-097-6
Cas Number:
847565-09-7
Molecular formula:
C18H28N2O
IUPAC Name:
(1R,2S,5R)-5-methyl-2-(propan-2-yl)-N-[2-(pyridin-2-yl)ethyl]cyclohexanecarboxamide

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, domestic, non-adapted
Duration of test (contact time):
67 d
Initial test substance concentration
Initial conc.:
100 mg/L
Based on:
test mat.

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
28 d
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
67 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
under test conditions no biodegradation observed
Conclusions:
Evercool 190 undergoes no biodegradation after 67days in the test conditions.
The curves obtained with the reference substance alone and with Evercool 190 + reference substance (see appendixes 1 and 4) show no toxic effect of Evercool 190 to the micro-organisms at the test concentration (100 mg/l).
Thus, Evercool 190 should be regarded as not readily biodegradable according to this test.