Registration Dossier
Registration Dossier
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EC number: 215-892-9 | CAS number: 1445-45-0
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:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Version / remarks:
- 17 Jul 1992
- Deviations:
- no
- Remarks:
- Minor deviations without adverse effects on study integrity.
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
- Version / remarks:
- 30 May 2008
- Deviations:
- no
- Remarks:
- Minor deviations without adverse effects on study integrity.
- Qualifier:
- according to guideline
- Guideline:
- other: ISO International Standard 9439 "Water Quality - Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium - carbon dioxide evolution test."
- Version / remarks:
- 1999
- Deviations:
- no
- Remarks:
- Minor deviations without adverse effects on study integrity.
- GLP compliance:
- yes
Test material
- Reference substance name:
- Trimethyl orthoacetate
- EC Number:
- 215-892-9
- EC Name:
- Trimethyl orthoacetate
- Cas Number:
- 1445-45-0
- Molecular formula:
- C5H12O3
- IUPAC Name:
- 1,1,1-trimethoxyethane
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 24 mg/L
- Based on:
- test mat.
- Initial conc.:
- 12 mg/L
- Based on:
- TOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (CO2 evolution)
- Remarks:
- based on ThCO2
- Value:
- 45
- Sampling time:
- 28 d
- Remarks on result:
- other:
- Remarks:
- bottle A
- Parameter:
- % degradation (CO2 evolution)
- Remarks:
- based on ThCO2
- Value:
- 50
- Sampling time:
- 28 d
- Remarks on result:
- other:
- Remarks:
- bottle B
Applicant's summary and conclusion
- Interpretation of results:
- not readily biodegradable
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