Registration Dossier
Registration Dossier
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EC number: 685-515-4 | CAS number: 10309-37-2
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:
- 2 010
Materials and methods
Test guideline
- 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:
- 4-[(1E,3S)-3-ethenyl-3,7-dimethylocta-1,6-dien-1-yl]phenol
- EC Number:
- 685-515-4
- Cas Number:
- 10309-37-2
- Molecular formula:
- C18H24O
- IUPAC Name:
- 4-[(1E,3S)-3-ethenyl-3,7-dimethylocta-1,6-dien-1-yl]phenol
Constituent 1
Study design
- Inoculum or test system:
- natural water
- Details on inoculum:
- The river water collected from Daman Ganga River was used as inoculum. The river water was filtered through Whatman No 1 filter paper and incubated at test temperature 20 ± 1℃ in incubator for one day.
- Duration of test (contact time):
- ca. 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- ca. 2 mg/L
- Based on:
- test mat.
- Initial conc.:
- ca. 7.98 mg/L
- Based on:
- other: dissolved oxygen
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- other: Potassium hydrogen phthalate
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 22.82
- Sampling time:
- 7 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 27.93
- Sampling time:
- 14 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 36.96
- Sampling time:
- 21 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 55.7
- Sampling time:
- 28 d
BOD5 / COD results
- Results with reference substance:
- 7d, 34.72%
14d, 66.89%
21d, 77.62%
28d, 87.66%
Any other information on results incl. tables
The degradation for reference substance (toxicity control) on 7d, 14d, 21d, and 28d were 36.26, 69.45, 79.32 and 90.21%, respectively. So no adverse effects of test substance on inoculum.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other: not readily biodegradable
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