Registration Dossier
Registration Dossier
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EC number: 204-605-2 | CAS number: 123-15-9
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Non-GLP guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1990
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- no
Test material
- Reference substance name:
- 2-Methylpentanal-1
- IUPAC Name:
- 2-Methylpentanal-1
- Details on test material:
- - Name of test material (as cited in study report): 2-Methylpentanal-1
- Analytical purity: no data
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): inoculum from a laboratory scale sewage plant treatingdomestic and synthetic sewage
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 38 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- TEST CONDITIONS
- Composition of medium: according to guideline
TEST SYSTEM
- Culturing apparatus: Sapromat
- Number of culture flasks/concentration: 3
- Test performed in closed vessels due to significant volatility of test substance: yes
CONTROL AND BLANK SYSTEM
- Inoculum blank: yes
- inhibition control: yes
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 45
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Interpretation of results:
- other: moderately biodegradable
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