Registration Dossier
Registration Dossier
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EC number: 900-021-3 | CAS number: -
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:
- 55 days
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- 1,7-bis(4-hydroxy-3-methoxyphenyl)heptane-3,5-dione
- EC Number:
- 900-021-3
- Molecular formula:
- 3,5-Heptanedione-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl) :C20 H22O5, 3,5-Heptanedione-1,7 -bis(4-hydroxyphenyl) : C19H20O4, 3,5-Heptanedione-1,7-bis(4-hydroxy-3-methoxyphenyl) : C21H24O6
- IUPAC Name:
- 1,7-bis(4-hydroxy-3-methoxyphenyl)heptane-3,5-dione
- Test material form:
- solid: bulk
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, industrial (adaptation not specified)
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 1 mg/L
- Based on:
- ThOD
Reference substance
- Reference substance:
- other: Sodium acetate
Results and discussion
% Degradation
- Key result
- Parameter:
- other: Oxygen depletion
- Value:
- >= 2.09 - <= 2.09
- Remarks on result:
- other: Not readily biodegradable
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The test item is not readily biodegradable under the conditions of the closed bottle test as the biodegradation was found to be below 60% according OECD criteria.
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