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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:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
7.10.1991 - 19.11.1991
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1991
Report date:
1991

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
Deviations:
yes
Remarks:
Due to the poor solubility of the test substance in water, an emulsifier was used to achieve a better distribution in the medium.
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
(2E)-N,6,6-trialkyl-N-(1-naphthylmethyl)hept-2-en-4-yn-1-amine salt
IUPAC Name:
(2E)-N,6,6-trialkyl-N-(1-naphthylmethyl)hept-2-en-4-yn-1-amine salt

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, domestic (adaptation not specified)
Duration of test (contact time):
28 d
Initial test substance concentrationopen allclose all
Initial conc.:
10 mg/L
Based on:
test mat.
Initial conc.:
20.2 mg/L
Based on:
test mat.
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
CO2 evolution
Reference substance
Reference substance:
aniline

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (CO2 evolution)
Value:
4
Sampling time:
28 d
Remarks on result:
other: for 10 mg test substance/L
Parameter:
% degradation (CO2 evolution)
Value:
2
Sampling time:
28 d
Remarks on result:
other: for 20.2 mg test substance/L
Details on results:
Degradation kinetic:
Day 3: 0%
Day 10: 68%
Day 20: 80%
Day 28: 86%

Applicant's summary and conclusion

Interpretation of results:
under test conditions no biodegradation observed
Conclusions:
According the classification criteria described in REGULATION (EC) No 1272/2008 (CLP), the product is not readily biodegradable..