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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: - | CAS number: 85338-42-7
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
log Pow = -2.31 - 1.72 at 20 °C, pH ca. 7-8
Key value for chemical safety assessment
Additional information
The partition coefficient of the substance C8 -10 AS, Na (CAS No. 85338 -42 -7) was obtained as a result of the weight of evidence approach. It was calculated using two independent fragment-based QSAR methods. Additionally, data known for category members C8 AS, Na (CAS No. 142 -31 -4) and C10 AS, Na (CAS No. 142 -87 -0) were used (for the former: calculation based on solubilities in water and n-octanol according to OECD 107; for the latter: slow stirring method, according to OECD 123). The results are consistent: the range obtained with one QSAR method (from -0.27 to 0.71) covers to high extent the range determined by the calculations with the other QSAR method (from -0.12 to 0.96) and these ranges are in the range defined by the read-across results from C8 (-2.31) and C10 (1.72). Temperature and pH are not reported for the QSAR calculations, it is thus assumed that the temperature corresponds to read-across data (20 °C for both substances) and pH is close to neutral (ca. 7) for calculated values and reported as 8 in the experiment with C10.
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.
