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EC number: 276-957-5 | CAS number: 72869-86-4
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:
- 2009-05-27 - 2009-06-30
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 7,7,9(or 7,9,9)-trimethyl-4,13-dioxo-3,14-dioxa-5,12-diazahexadecane-1,16-diyl bismethacrylate
- EC Number:
- 276-957-5
- EC Name:
- 7,7,9(or 7,9,9)-trimethyl-4,13-dioxo-3,14-dioxa-5,12-diazahexadecane-1,16-diyl bismethacrylate
- Cas Number:
- 72869-86-4
- Molecular formula:
- C23H38N2O8
- IUPAC Name:
- 7,7,9(or 7,9,9)-trimethyl-4,13-dioxo-3,14-dioxa-5,12-diazahexadecane-1,16-diyl bismethacrylate
- Details on test material:
- Batch no. 81106228
Purity: 96.99 %
Expiry date: 2010-12-01
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, domestic (adaptation not specified)
- Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 21 mg/L
- Based on:
- other: organic C, calculated
- Initial conc.:
- 19 mg/L
- Based on:
- other: organic C, calculated
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:
- 2
- Sampling time:
- 4 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 5
- Sampling time:
- 6 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 16
- Sampling time:
- 10 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 22
- Sampling time:
- 24 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 21
- Sampling time:
- 29 d
- Details on results:
- The degree of biodegradation reached 22 % after 28 days. The 10-day window began on day 8, at its end, 22 % were reached, missing the pass level of 60 % given in the OECD guideline. Abiotic degradation was not observed.
Any other information on results incl. tables
The degree of biodegradation reached 22 % after 28 days. The 10-day window began on day 8, at its end, 22 % were reached, missing the pass level of 60 % given in the OECD guideline. Abiotic degradation was not observed.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other: not readily biodegradable
- Conclusions:
- The degree of biodegradation reached 22 % after 28 days. The 10-day window began on day 8, at its end, 22 % were reached, missing the pass level of 60 % given in the OECD guideline. Abiotic degradation was not observed. The test item is considered as not readily biodegradable.
- Executive summary:
The degree of biodegradation reached 22 % after 28 days. The 10-day window began on day 8, at its end, 22 % were reached, missing the pass level of 60 % given in the OECD guideline. Abiotic degradation was not observed. The test item is considered as not readily biodegradable.
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