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: 219-417-6
CAS number: 2432-99-7
Two sets of experimental data are available: Exp (KS_V2d): The resulting acidity constants for amino-11 undecanoic acid at 25°C are as follows: pKa 1 (amine) = from 10.80 to 10.85 and pKa2 (carboxylate) = from 4.60 to 4.65.Exp (SS_V2d): The acidity constant has been determined by comparison of experimental data (titration of the sodium salt by a strong acid) with simulated titration curves generated by a micro-computer. At 16°C, the resulting acidity constants for amino-11 undecanoic acid are as follows: pKa amine = 11.15 and pKa carboxylate = 4.45.
Because this titration method is usually used to measure the acidity
constants, the reliability of these studies should be "2" as " test
procedure in accordance with standards with acceptable restrictions".
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again