Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 480-410-8 | CAS number: 13482-23-0
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:
- 2006-03-21 to 2006-08-15
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - HPLC Method)
- Version / remarks:
- 1992
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Version / remarks:
- 1989
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Analytical method:
- high-performance liquid chromatography
- Type:
- Pow
- Partition coefficient:
- 7
- Temp.:
- 40 °C
- Remarks on result:
- other: pH was not determined.
- Key result
- Type:
- log Pow
- Partition coefficient:
- 0.86
- Temp.:
- 40 °C
- Remarks on result:
- other: pH was not determined.
- Details on results:
- The measured log k'-values of the test item were within the calibrated log k'-range. From the resulted calibration curves and her equation the log Pow-values of the substance had been interpolated.
- Conclusions:
- The log Pow of the test item was determined to be 0.86 (Pow= 7).
- Executive summary:
The log Pow of the test item was determined to be 0.86 (Pow= 7).
Reference
Validity criteria for the measurement of the particion coefficient:
| Target condition according to guideline OECD 117: | Actual condition according to the study: | Validity criteria met: |
| In order to correlate the measured HPLC data of a compound with its P value, a calibration graph of log P vs. chromatographic data using at least 6 reference points has to be established. | A calibration graph (log k' vs log Pow) of nine reference points is stated in the raw data. | Yes |
| Whenever possible, at least one reference compound should have a Pow above that of the test substance, and another a Pow below that of the test substance. | log Pow of reference substances ranged between 0.30 and 4.70. | Yes |
| In order to increase the confidence in the measurement, duplicate determinations must be made. The values of log P derived from individual measurements should fall within a range of ± 0,1 log units.) | The test item was injected in duplicate as solutions in acetonitrile and gave the same retention times. |
Description of key information
The log Pow of the test item was determined to be 0.86 (Pow= 7).
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 0.86
- at the temperature of:
- 20 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
