Registration Dossier
Registration Dossier
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EC number: 248-514-6 | CAS number: 27538-10-9
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:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 2-ethyl-4-hydroxy-5-methylfuran-3(2H)-one
- EC Number:
- 248-514-6
- EC Name:
- 2-ethyl-4-hydroxy-5-methylfuran-3(2H)-one
- Cas Number:
- 27538-10-9
- Molecular formula:
- C7H10O3
- IUPAC Name:
- 2-ethyl-4-hydroxy-5-methylfuran-3(2H)-one
1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Activated sludge from a biologic sewage treatment plant was used. The chosen plant is treating mostly household sewage.
The sludge was taken from the activation basin of the sewage treatment plant in D-67480 Edenkoben.
Date of collection: 28. Feb. 2018, batch no: 20180228.
The sludge was filtrated, washed with medium 2x, and re-suspended in test medium. It was then aerated.
The dry matter was determined as 4520 mg suspended solids/L. - Duration of test (contact time):
- 28 d
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 71
- Sampling time:
- 28 h
BOD5 / COD results
- Results with reference substance:
- The positive control reached the pass level of 60% on day 4.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- when applying the 10-day-window, Furanone Homo is classified as readily biodegradable following OECD 301F/EU C.4-D.
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