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Partition coefficient

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Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC method
Partition coefficient type:
octanol-water
Analytical method:
high-performance liquid chromatography
Key result
Type:
log Pow
Partition coefficient:
>= 3.34 - <= 6.5
Temp.:
25 °C
pH:
ca. 7.9
Conclusions:
The partition coefficient of the test item has been determined to be in the range 2.58 to 7.68 x 104, log10 Pow of 0.41 to 4.89. For approximately 88% of the test item by peak area normalisation the partition coefficient was in the range 2.58 to 144, log10 Pow of 0.41 to 2.16.
Executive summary:

In the range 2.58 to 7.68 x 104, log10 Pow of 0.41 to 4.89, using the HPLC method, designed to be compatible with Method A.8 Partition Coefficient of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 117 of the OECD Guidelines for Testing of Chemicals, 13 April 2004.

For approximately 88% of the test item by peak area normalisation the partition coefficient was in the range 2.58 to 144, log10 Pow of 0.41 to 2.16.

Description of key information

Overall log10 Pow: In the range 3.55 to >6.5

The partition coefficient of the test item has been determined to be in the range 172 to greater than 3.16 x 106, log10 Pow in the range 2.24 to greater than 6.5.

Key value for chemical safety assessment

Additional information