Registration Dossier
Registration Dossier
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EC number: 939-682-8 | CAS number: -
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
pKa measured at equilibrium state at a given pH 6.21 (no information on temperature, RT assumed)
Key value for chemical safety assessment
Additional information
The dissociation constant (pKa) of the registered substance was determined in two studies. In the key study (Maas, 2013), the pKa was determined by potentiometric titration to be 6.21. In the supportive study (Younis, 2013), the dissociation constant was determined to be 7.25 in line with GLP and the standardised OECD Guideline 112. The pKa value seems to have been overestimated in this study based on the structure and experience with the test item.
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.
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