Registration Dossier
Registration Dossier
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EC number: 206-750-7 | CAS number: 372-31-6
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- other: Prediction model
- Title:
- Bio-degradation in water by Environmental Science Center’s PBT profiler
- Author:
- Environmental Science Center
- Year:
- 2 010
- Bibliographic source:
- PBT profiler, Office of Chemical Safety and Pollution Prevention , U.S. Environmental Protection Agency; version 1.301
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Modelling database
- Principles of method if other than guideline:
- PBT profiler database
- GLP compliance:
- no
Test material
- Reference substance name:
- Ethyl 4,4,4-trifluoroacetoacetate
- EC Number:
- 206-750-7
- EC Name:
- Ethyl 4,4,4-trifluoroacetoacetate
- Cas Number:
- 372-31-6
- Molecular formula:
- C6H7F3O3
- IUPAC Name:
- ethyl 4,4,4-trifluoro-3-oxobutanoate
- Test material form:
- other: liquid
- Details on test material:
-Substance Name: ethyl 4,4,4-trifluoroacetoacetate
-Molecular formula : C6H7F3O3
-Substance type: Organic
-physical state-liquid
Constituent 1
Study design
- Oxygen conditions:
- other: estimated data
- Duration of test (contact time):
- 38 d
Results and discussion
% Degradation
- Parameter:
- other: Halflife
- Value:
- 50
- Sampling time:
- 38 d
- Remarks on result:
- other: 38 days = 912 hrs
- Details on results:
- Half life = 38 days (912hrs)
Any other information on results incl. tables
Media |
Half life (days) |
Percent in Medium |
water |
38 |
41% |
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
- Conclusions:
- Ethyl 4,4,4-trifluoroacetoacetate is 50% biodegradable in water in 38 days (half-life). This value indicates that ethyl 4,4,4-trifluoroacetoacetate is readily biodegradable in water since the half life is less than the EPA criteria of >= 60 days (to qualify the chemical as persistent).
- Executive summary:
Based on level III fugacity model the half life period ofethyl 4,4,4-trifluoroacetoacetatewas estimated.Ethyl 4,4,4-trifluoroacetoacetate is 50% biodegradable in water in 38 days (half-life). This value indicates that ethyl 4,4,4-trifluoroacetoacetate is readily biodegradable in water since the half life is less than the EPA criteria of >= 60 days (to qualify the chemical as persistent).
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