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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1999-11-11
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Version / remarks:
1989
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient - 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:
3.5
Temp.:
35 °C
pH:
ca.
Remarks on result:
other: neutral
Remarks:
mobile phase: acetonitrile/water 60 : 40 (v/v)
Conclusions:
The partition coefficient n-octanol/water of the test item was determined to be log Pow = 3.5 at 35 °C by the Reverse Phase High Perfomance Liquid Chromatographic Method according to the OECD Guidelines for Testing of Chemicals, Method No. 117.
Executive summary:

The study was conducted in accordance with OECD TG 117 and Regulation (EC) No 440/2008 method A.8 to determine the partition coefficient of the test substance. Using the HPLC method partition coefficient Pow was determined in two individual measurements. Finally, a mean value was calculated from these individual log Pow values.The partition coefficient log Pow of the test substance was determined to be log Pow = 3.5 at 35 °C. All validation criteria were fulfilled. 

Description of key information

The partition coefficient n-octanol/water of the test item was determined to be log Pow = 3.5 at 35 °C by the Reverse Phase High Perfomance Liquid Chromatographic Method according to the OECD Guidelines for Testing of Chemicals, Method No. 117.

Key value for chemical safety assessment

Log Kow (Log Pow):
3.5
at the temperature of:
35 °C

Additional information

The study was conducted in accordance with OECD TG 117 and Regulation (EC) No 440/2008 method A.8 to determine the partition coefficient of the test substance. Using the HPLC method partition coefficient Pow was determined in two individual measurements. Finally, a mean value was calculated from these individual log Pow values.The partition coefficient log Pow of the test substance was determined to be log Pow = 3.5 at 35 °C. All validation criteria were fulfilled.