Registration Dossier
Registration Dossier
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EC number: 816-455-0 | CAS number: 960253-23-0
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Version / remarks:
- 2004
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - HPLC Method)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7570 (Partition Coefficient, n-octanol / H2O, Estimation by Liquid Chromatography)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Analytical method:
- high-performance liquid chromatography
- Key result
- Type:
- log Pow
- Partition coefficient:
- 5.9
- Temp.:
- 35 °C
- pH:
- 7
- Remarks on result:
- other: The LogPow value of 5.9 has been taken as the most representative value and is the major component detected of the test item.
- Type:
- log Pow
- Partition coefficient:
- >= 5.3 - <= 6.6
- Temp.:
- 35 °C
- pH:
- 7
- Details on results:
- In the conditions of the test, the chromatograms of GR-86-6599 show three peaks at average retention times of 11.967 minutes (21.1% relative peak area) corresponding to a partition coefficient (log value) of 5.3; 16.731 minutes (52.4% relative peak area) corresponding to a partition coefficient (log value) of 5.9* and 24.603 minutes (26.5% relative peak area) corresponding to a partition coefficient (log value) of 6.6*.
*Indicative values, peaks are outside calibration domain
The LogPow value of 5.9 has been taken as the most representative value and is the major component detected of the test item.
The determination was performed at 35°C (temperature of the column), but the value obtained above can be considered to represent the value at an unspecified, probably ambient temperature since no mention is made in the guidelines of the temperature at which the tabulated reference substances log Pow values were determined. Partition coefficients of the test and reference substances are assumed to vary with temperature in the same way. - Conclusions:
- log Pow= 5.3; 5.9* and 6.6*
* indicative values, peaks are outside calibration domain - Executive summary:
The Partition Coefficient n-octanol/water of GR-86-6599 was determined by the Reverse Phase High Performance Liquid Chromatographic Method according to the OECD Guidelines for Testing of Chemicals, Method No. 117.
The result is:
Partition coefficients n-octanol/water of GR-86-6599:
log Pow= 5.3; 5.9* and 6.6*
* indicative values, peaks are outside calibration domain
The LogPow value of 5.9 has been taken as the most representative value and is the major component detected of the test item.
Reference
Description of key information
The Partition Coefficient n-octanol/water of GR-86-6599 was determined by the Reverse Phase High Performance Liquid Chromatographic Method according to the OECD Guidelines for Testing of Chemicals, Method No. 117.
The result is:
Partition coefficients n-octanol/water of GR-86-6599:
log Pow= 5.3; 5.9* (main component) and 6.6*
* indicative values, peaks are outside calibration domain
The LogPow value of 5.9 has been taken as the most representative value and is the major component detected of the test item.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 5.9
- at the temperature of:
- 35 °C
Additional information
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