Registration Dossier
Registration Dossier
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EC number: 237-913-0 | CAS number: 14064-10-9
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)
- Rationale for reliability incl. deficiencies:
- other: GLP study according to OECD / EU guideline
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-E (Determination of the "Ready" Biodegradability - Closed Bottle Test)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Diethyl chloromalonate
- EC Number:
- 237-913-0
- EC Name:
- Diethyl chloromalonate
- Cas Number:
- 14064-10-9
- Molecular formula:
- C7H11ClO4
- IUPAC Name:
- 1,3-diethyl 2-chloropropanedioate
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, predominantly domestic, non-adapted
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 5.7 mg/L
- Based on:
- test mat.
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (O2 consumption)
- Value:
- 25
- Sampling time:
- 7 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 37
- Sampling time:
- 14 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 49
- Sampling time:
- 21 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 54
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The test substance has to be classified as "Not Readily Biodegradable".
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