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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 931-468-2 | CAS number: 1190625-94-5
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
Pow at pH 7 >1.6 x 107, which corresponds with a log Pow of > 7.2; OECD 117, EU Method A.8 and EPA OPPTS 830.7570
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 7.2
- at the temperature of:
- 35 °C
Additional information
The partition coefficient of the test material was investigated in accordance with the standardised guidelines OECD 117, EU Method A.8 and EPA OPPTS 830.7570 under GLP conditions using the HPLC method. The study was awarded a reliability score of 1 in accordance with the principles for assessing data quality set forth by Klimisch et al. (1997).
Solutions of reference materials and the test material were analysed. The capacity factor (k') of each compound was calculated from its retention time. The log k’ values of the reference materials were plotted against the known log Pow values. A linear regression program was used to calculate the calibration curve. Linear regression analysis was performed using the least squares method. The correlation coefficient (r) was calculated. The log Pow value for the test material was calculated by substituting its mean log k’ in the calibration curve. The value of log Pow obtained from duplicate measurements was within ± 0.1 log units.
Several test material peaks were observed in the chromatogram of the test solution, which all had a retention time longer than the reference material benzo[ghi]perylene.
Under the conditions of this study, the Pow of the test material at pH 7 was >1.6 x 107, which corresponds with a log Pow of > 7.2.
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.
