Registration Dossier
Registration Dossier
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EC number: 218-577-4 | CAS number: 2186-92-7
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: Guideline study; non-GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 989
- Report date:
- 1989
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- no
Test material
- Reference substance name:
- p-(dimethoxymethyl)anisole
- EC Number:
- 218-577-4
- EC Name:
- p-(dimethoxymethyl)anisole
- Cas Number:
- 2186-92-7
- Molecular formula:
- C10H14O3
- IUPAC Name:
- 1-(dimethoxymethyl)-4-methoxybenzene
- Details on test material:
- - Name of test material (as cited in study report): Anisaldehyddimethylacetal
- Lot/batch No.: 9/11/88
- Analytical purity: 96.9 % (area)
water solubility: poorly water soluble.
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
Initial test substance concentrationopen allclose all
- Initial conc.:
- 53 mg/L
- Based on:
- test mat.
- Initial conc.:
- 660 other: mg/g
- Based on:
- other: TOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 66
- Sampling time:
- 28 d
- Details on results:
- lag-phase: 1 d
degradation phase: 13 d
Kinetic of test substance (in %):
< 10 after 1 day(s)
> 60 after 10 day(s)
ca. 65 after 13 day(s)
= 65 after 28 day(s)
Kinetic of control substance (in %):
< 10 after 4 day(s)
> 60 after 10 day(s)
Degradation products: no
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
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