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EC number: 253-256-2 | CAS number: 36888-99-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model, but not (completely) falling into its applicability domain, with adequate and reliable documentation / justification
- Remarks:
- Parameter ranges: In domain; Structural domain: Out of domain (Correct fragments: 90.91%; Incorrect fragments: 0%; Unknown fragments: 9.09%); Unable to mineralize: In domain
- Principles of method if other than guideline:
- Estimation of results of OECD screening tests on ready biodegradation in water: CATALOGIC (v5.14.1.5); CATALOGIC 301C v.11.16
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Duration of test (contact time):
- 28 d
- Parameter:
- probability of ready biodegradability (QSAR/QSPR)
- Remarks on result:
- not readily biodegradable based on QSAR/QSPR prediction
- Parameter:
- half-life in days (QSAR/QSPR)
- Remarks on result:
- other: Primary half life: < 1 day; Ultimate half life: 2m 28d
- Details on results:
- Model domain similarity:
- Parametric domain: 100%
- Structural domain: 90.91% (correct fragments), 0% (incorrect fragments), 9.09% (unknown fragments)
- Mechanistic domain: 100%
Predicted BOD value: 0.20 +/- 6.92 E-3
Prediction: Not ready degradable - Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The test substance is not readily biodegradable (according to OECD criteria)
- Endpoint:
- biodegradation in water: ready biodegradability
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Justification for type of information:
- See attached justification
- Reason / purpose for cross-reference:
- data waiving: supporting information
- Reason / purpose for cross-reference:
- data waiving: supporting information
Referenceopen allclose all
Description of key information
Poorly biodegradable.
Key value for chemical safety assessment
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