Registration Dossier
Registration Dossier
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: 310-154-3 | CAS number: 121158-58-5
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 2009-04-30 to 2009-05-15
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Deviations:
- not specified
- GLP compliance:
- no
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Phenol, dodecyl-, branched
- EC Number:
- 310-154-3
- EC Name:
- Phenol, dodecyl-, branched
- Cas Number:
- 121158-58-5
- Molecular formula:
- C18H30O
- IUPAC Name:
- 4-(3,4,5,6-tetramethyloctan-2-yl)phenol
- Details on test material:
- - Name of test material: Dodecylphenol
- Lot/batch No.: 0805
Constituent 1
Study design
- Analytical method:
- high-performance liquid chromatography
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- 6.1
- Temp.:
- 23 °C
- pH:
- 7.1
- Details on results:
- see below
Any other information on results incl. tables
Calibration:
| Substances | log Pow | retention time [min] | capacity factor k | log k |
| acetophenone | 1.7 | 1.44 | 0.196 | -0.71 |
| phenyl benzoate | 3.6 | 2.04 | 0.694 | -0.16 |
| diphenyl ether | 4.2 | 2.53 | 1.107 | 0.04 |
| dibenzyl | 4.8 | 3.83 | 2.189 | 0.34 |
| fluoranthene | 5.1 | 4.84 | 3.029 | 0.48 |
| triphenylamine | 5.7 | 5.61 | 3.667 | 0.56 |
Correlation log k and Pow:
Slope: 2.94
Axis intercept: 3.91
Correlation coefficient: 0.993
Measurement:
| Component 1 | Component 2 | Component 3 | Average | |
| Retention time [min] | 5.42 | 6.62 | 8.85 | |
| Peak areas [%] | 8.72 | 26.29 | 64.99 | |
| Capacity factor k | 3.51 | 4.51 | 6.37 | |
| log k | 0.55 | 0.65 | 0.8 | |
| log Pow | 5.51 | 5.83 | 6.27 | 6.1 |
Applicant's summary and conclusion
- Conclusions:
- The measured log Pow of Dodecylphenol was determined to be 6.1 at 23 °C and a pH of 7.1.
- Executive summary:
The log Pow of the test substance Dodecylphenol was determined according to OECD Guideline for Testing of Chemicals No. 117 "Partition Coefficient (n-octanol/water), High Performance Liquid Chromatography (HPLC) Method", adopted 13 April 2004.
The average log Pow was determined to be 6.1 at 23 °C and a pH of 7.1. As reference substances were used: acetophenone, phenyl benzoate, diphenyl ether, dibenzyl, fluoranthene and triphenylamine with the respective log Pow: 1.7, 3.6, 4.2, 4.8, 5.1 and 5.7. The calibration showed a correlation coefficient of 0.993.
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.
