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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 200-293-7 | CAS number: 56-86-0
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
Three functional groups for which dissociation constants are available. The dissociation constants are obtained from handbooks.
Key value for chemical safety assessment
Additional information
L-Glutamic acid is deprotonated at pH>4 (COOH: pK1 2.19, pK2 4.25; NH3+: pK3 9.67 at 20 °C, obtained from the Merck Index 12th Edition) so at environmental and physiological pH it is present in the form of L-Glutamate.
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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