Registration Dossier
Registration Dossier
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EC number: 801-347-8 | CAS number: 20445-94-7
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- other: QSAR report
- Title:
- Unnamed
- Year:
- 2 022
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: RB-QSAR prediction model
- GLP compliance:
- no
Test material
- Reference substance name:
- tributyl(ethyl)phosphanium diethyl phosphate
- Cas Number:
- 20445-94-7
- Molecular formula:
- C18H42O4P2
- IUPAC Name:
- tributyl(ethyl)phosphanium diethyl phosphate
- Test material form:
- liquid
Constituent 1
Results and discussion
% Degradation
- Parameter:
- probability of ready biodegradability (QSAR/QSPR)
- Value:
- ca. 51.8
- Remarks on result:
- not readily biodegradable based on QSAR/QSPR prediction
- Details on results:
- Predicted endpoint: % degradation (CO2 evolution), % degradation (inorg. C analysis), % degradation
(O2 consumption), % degradation (radiochem. meas.), % degradation (test mat. analysis), Other
Endpoint; No effect specified; No species specified; 4÷92 d; OECD Guideline 301 B (Ready
Biodegradability: CO2 Evolution Test), OECD Guideline 301 D (Ready Biodegradability: Closed Bottle
Test), OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test), OECD Guideline
302 C (Inherent Biodegradability: Modified MITI Test (II)), OECD Guideline 311 (Anaerobic
Biodegradability of Organic Compounds in Digested Sludge: Measurement of Gas Production)
Predicted value: 51.8 % (from -3.53 to 107)
Applicant's summary and conclusion
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Based on RB-QSAR estimation, Tributyl(ethyl) phosphonium diethyl phosphate is not ready biodegradability
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