Registration Dossier
Registration Dossier
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EC number: 212-141-7 | CAS number: 765-14-0
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
The log Pow of the substance was determined to be > 6.5 at a temperature of 23 °C and pH = 6.2 .
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 6.5
- at the temperature of:
- 23 °C
Additional information
Key study
The determination of the log Pow of the test item was carried out according to the OECD Guideline 117 (HPLC method). Additionally, the solubility in n-octanol was tested. In result, the log Pow was determined to be > 6.5 at 23 °C and pH = 6.2 (pH value of the water used for the preparation of the eluent). In the visual test, the substance was completely miscible in any ratio in n-octanol at 23 °C +- 0.5 °C.
Supporting study
A study was conducted (BASF AG, 2006) to determine the partition coefficient octanol water of the test item. Using the HPLC method according to Regulation (EC) No 440/2008 Part A A.8 the logPow was determined at a temperature of 23 °C. With the recommended mobile phase (as given in the test guideline) the test item did not elute from the column within 45 minutes. With pure acetonitrile the test item could be chromatographed. The retention time of the test item was larger than the retention time of DDT, the reference compound with the largest log Pow value available for the HPLC method. Thus, it was estimated that the logPow of the test item is larger than the logPow value of DDT (6.5).
Based on the most current and reliable information (BASF SE, 2017), the log Pow of the test item is considered to be > 6.5 at 23 °C and pH = 6.2.
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