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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 203-838-7 | CAS number: 111-14-8
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
2 data are available at standard temperature (EPI SuiteTM software program):
- log Kow = 2.54 (calculation model KOWWIN v1.76)
- log Kow = 2.42 (experimental data base - Sangster)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 2.54
- at the temperature of:
- 20 °C
Additional information
No full report of experimental study is available for the partition coefficient of heptanoic acid.
As the applicability of the EPIWIN program (KowWin v1.67) for the estimation of logKow values of heptanoic acid has been demonstrated by the QPRF, this calculated value is considered acceptable and its reliability is considered as "2".
The estimated logKow values is consitent with the experimental data reported in the experimental data base of the model (Sangster).
Thus, the value of partition coefficient selected for the risk asssement is the higher value => log Pow =2,54.
This value indicates a low potential for heptanoic acid to accumulate from water into organisms.
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.
