Related Experiment Video
Updated: Aug 26, 2026

In Vitro Enzyme Measurement to Test Pharmacological Chaperone Responsiveness in Fabry and Pompe Disease
Published on: December 20, 2017
[Glycine determination according to the European Pharmacopoeia]
1Institut für Pharmazeutische Chemie, Fachbereich Pharmazie, Martin-Luther-Universität Halle Wittenberg, Halle (Saale), Germany. peinhardt@pharmazie.uni-halle.de
Abstract:
The treatment of an aqueous solution of glycine with hypochlorite yields formaldehyde and glyoxylic acid. After acidification and removing formaldehyde by boiling glyoxylic acid reacts with resorcinol to the lactone of bis-2,4-dihydroxyphenyl acetic acid. Under alkaline conditions the lactone is oxidized to the violet oxonol anion and subsequently, after hydrolysis of the lactone, to the yellow fluorescent carboxylate anion.

