Registration Dossier
Registration Dossier
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EC number: 240-344-0 | CAS number: 16215-49-9
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 2018-04-03
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Justification for type of information:
- Experimental determination of the log Pow is technically not possible because the substance decomposes during testing. However, as a log Pow value is required for exposure calculations, the QSAR estimated log Pow of 3.19 is included as key value for chemical safety assessment. Please refer to QPRF/QMRF documentation for detailed information on model suitability.
- Qualifier:
- according to guideline
- Guideline:
- other: Guidance on information requirements and chemical safety assessment Chapter R.6: QSARs and grouping of chemicals
- Version / remarks:
- May 2008
- Principles of method if other than guideline:
- QSAR prediction using KOWWIN v1.68 of EpiSuite v4.11. QSAR calculation is based on the fragment constant methodology.
- GLP compliance:
- no
- Type of method:
- calculation method (fragments)
- Partition coefficient type:
- octanol-water
- Specific details on test material used for the study:
- SMILES: CCCCOC(=O)OOC(=O)OCCCC
- Type:
- log Pow
- Partition coefficient:
- 3.19
- Temp.:
- 20 °C
- Remarks on result:
- other: pH not available in QSAR prediciton.
- Details on results:
- see QPRF/QMRF
- Conclusions:
- The estimated log Pow for Dibutyl peroxydicarbonate is 3.19 and suggest hydrophobic properties associated with a moderate potential for adsorption and bioaccumulation.
- Executive summary:
The estimated log Pow for Dibutyl peroxydicarbonate is 3.19 and suggest hydrophobic properties associated with a moderate potential for adsorption and bioaccumulation. The substance is in the applicability domain of the model and the result is considered adequate for a regulatory conclusion.
- Endpoint:
- partition coefficient
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- the study does not need to be conducted because the substance decomposes
Referenceopen allclose all
Description of key information
The study for determination of the log P is technically not feasbile because the test item decomposes thermally during measurement (SADT + 5 °C).
However, as a log Pow value is required for exposure calculations, the EPISuite estimated log Pow of 3.19 is included as key value for chemical safety assessment.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 3.19
- at the temperature of:
- 20 °C
Additional information
The substance is in the applicability domain of the QSAR model and the result is considered adequate for a regulatory conclusion.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
