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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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partition coefficient
Type of information:
Adequacy of study:
key study
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:
QSAR calculation
no guideline followed
Principles of method if other than guideline:
Q)SAR calculation with calculation program US EPA EPI Suite v4.11, program component KOWWIN (v1.68); molecular structure is divided into fragments and log Kow is estimated by summing together coefficients for each fragment (AFC method; US EPA 2012. Estimation Programs Interface Suite™ for Microsoft® Windows, v 4.11; United States Environmental Protection Agency, Washington, DC, US).
Type of method:
other: calculation
Partition coefficient type:
log Pow
Partition coefficient:
Remarks on result:
other: value calculated

Description of key information

For isopropylnaphthalene, a log Kow of 4.625 was calculated, using the calculation program KOWWIN v1.68 included in US EPA EPI Suite 4.11.

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
20 °C

Additional information