Registration Dossier
Registration Dossier
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EC number: 433-480-9 | CAS number: 623-53-0
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:
- 05/1993 - 10/1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 993
- Report date:
- 1993
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- -
- EC Number:
- 433-480-9
- EC Name:
- -
- Cas Number:
- 623-53-0
- Molecular formula:
- C4H8O3
- IUPAC Name:
- ethyl methyl carbonate
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: activated sludge
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- ca. 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimationopen allclose all
- Parameter followed for biodegradation estimation:
- other: BOD
- Parameter followed for biodegradation estimation:
- TOC removal
- Parameter followed for biodegradation estimation:
- test mat. analysis
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (TOC removal)
- Value:
- >= 92 - <= 93
- Sampling time:
- 28 d
- Parameter:
- other: BOD
- Value:
- >= 93 - <= 101
- Sampling time:
- 28 d
- Parameter:
- other: Percentage biodegration by GC
- Value:
- ca. 100
- Sampling time:
- 28 d
BOD5 / COD results
BOD5 / COD
- Parameter:
- BOD5
- Value:
- > 93 - < 101 other: % biodegradation
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The test substance is readily biodegradable.
- Executive summary:
The test substance is readily biodegradable.
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