Registration Dossier
Registration Dossier
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EC number: 427-900-1 | CAS number: 198404-98-7
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:
- 13 March, 2018 to 23 March, 2018
- 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:
- 13 April, 2004
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - Shake Flask Method)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Specific details on test material used for the study:
- JAVANOL :
Batch No. : VE00537237;
Purity : 91.6% (sum of the two peaks)
Expiry Date : 29 January, 2020 - Analytical method:
- high-performance liquid chromatography
- Key result
- Type:
- log Pow
- Partition coefficient:
- 4.5
- Temp.:
- 25 °C
- pH:
- 2.03
- Remarks on result:
- other: LogPow measured at pH 2.0, ensuring that no undissociated species were present.
- Conclusions:
- The test was conducted at a pH of 2.0. In the conditions of the test, the chromatograms of Javanol show two partially resolved peaks at average retention times of 11.287 minutes (49.0% relative peak area), corresponding to a partition coefficient (log value) of 4.5 and 11.719 minutes (51.0% relative peak area), corresponding to a partition coefficient (log value) of 4.5.
Therefore:
Partition coefficient n-octanol/water of Javanol (pH 2.0):
log Pow = 4.5. - Executive summary:
The partition coefficient n-octanol/water of Javanol was determined by the Reverse Phase High Performance Liquid Chromatographic Method according to the OECD guidelines for testing on chemicals, Method No. 117 and under GLP.
The result is:
The test was conducted at a pH of 2.0. In the conditions of the test, the chromatograms of Javanol show two partially resolved peaks at average retention times of 11.287 minutes (49.0% relative peak area), corresponding to a partition coefficient (log value) of 4.5 and 11.719 minutes (51.0% relative peak area), corresponding to a partition coefficient (log value) of 4.5.
Therefore:
Partition coefficient n-octanol/water of Javanol (pH 2.0):
log Pow = 4.5.
Reference
Description of key information
The partition coefficient n-octanol/water of Javanol was determined by the Reverse Phase High Performance Liquid Chromatographic Method according to the OECD guidelines for testing on chemicals, Method No. 117 and under GLP.
The result is:
The test was conducted at a pH of 2.0. In the conditions of the test, the chromatograms of Javanol show two partially resolved peaks at average retention times of 11.287 minutes (49.0% relative peak area), corresponding to a partition coefficient (log value) of 4.5 and 11.719 minutes (51.0% relative peak area), corresponding to a partition coefficient (log value) of 4.5.
Therefore:
Partition coefficient n-octanol/water of Javanol (pH 2.0):
log Pow = 4.5 at 25°C
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 4.5
- at the temperature of:
- 25 °C
Additional information
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