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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Study period:
2018-04-24
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:
please refer to attached QPRF/QMRF report
Guideline:
other: ECHA Guidance R.6
Principles of method if other than guideline:
- Software tool(s) used including version: EPIWIN v4.1
- Model(s) used: KOWWIN v1.68
- Model description: see field 'Attached justification'
- Justification of QSAR prediction: see field 'Attached justification'
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
CC(=O)CC(C)=O
Type:
log Pow
Partition coefficient:
0.05
Temp.:
25 °C
Remarks on result:
other: pH not specified in model
Conclusions:
The logPow for 2,4-pentanedione predicted by KOWWIN v1.68 is 0.05. The prediction is in the applicability domain of the model.
Executive summary:

The logPow of 2,4 -pentanedione was predicted by KOWWIN v1.68 implemented in EPIWIN v 4.1. It was predicted to be 0.05. This prediction falls within the applicability domain of this model.

Description of key information

The logPow of 2,4 -pentanedione was predicted by KOWWIN v1.68 implemented in EPIWIN v 4.1. It was predicted to be 0.05. This prediction falls within the applicability domain of this model.

Key value for chemical safety assessment

Log Kow (Log Pow):
0.05

Additional information