Registration Dossier
Registration Dossier
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EC number: 288-511-7 | CAS number: 85736-99-8 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 53228.
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- other:
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 18 June 2012
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 123 (Partition Coefficient (1-Octanol / Water), Slow-Stirring Method)
- Principles of method if other than guideline:
- The test was not feasible to complete
- GLP compliance:
- no
- Remarks:
- not mandatory
- Type of method:
- other: no method was suitable
- Partition coefficient type:
- octanol-water
- Analytical method:
- not specified
- Key result
- Type:
- Pow
- Remarks on result:
- not determinable
- Details on results:
- No chromatographic method is applicable to determine the solubility of the substance in n-octanol. Therefore, no partition coefficient could be derived.
- Conclusions:
- The log Pow was not determinable.
- Executive summary:
The log Pow was not determinable due to intrinsic properties of the test item. The test item is a UVCB and the flask-shake and slow-stir methods are not applicable to complex mixtures. The solubility of test item in several reverse phase solvents (methanol, acetone, THF) was insoluble or only soluble in small amounts. There is no defined structure, therefore an estimation based on QSAR calculation is no possible.
Referenceopen allclose all
The partition coefficient of the test item has been assessed with regard to A8 Partition Coefficient of EC 440/2008 and methods OECD 107, OECD 117 and OECD 123. They were considered not applicable for following reasons:
- the test item is a UVCB and the flask-shake and slow-stir methods are not applicable to complex mixtures
- the solubility of test item in several reverse phase solvents (methanol, acetone, THF) was insoluble or only soluble in small amounts
- due to low solubility in water and n-octanol an estimation of partition coefficient based on these solubilities would be inaccurate
- there is no defined structure, therefore an estimation based on QSAR calculation is no possible
Description of key information
The log Pow was not determinable.
Key value for chemical safety assessment
Additional information
The log Pow was not determinable due to intrinsic properties of the test item. The test item is a UVCB and the flask-shake and slow-stir methods are not applicable to complex mixtures. The solubility of test item in several reverse phase solvents (methanol, acetone, THF) was insoluble or only soluble in small amounts. There is no defined structure, therefore an estimation based on QSAR calculation is no possible.
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