Morpholinium, 2,2'-(1,1'-biphenyl)-4,4'-diylbis(2-hydroxy-4,4-dimethyl)-, dibromide
A potent inhibitor of the high affinity uptake system for CHOLINE. It has less effect on the low affinity uptake system. Since choline is one of the components of ACETYLCHOLINE, treatment with hemicholinium can deplete acetylcholine from cholinergic terminals. Hemicholinium 3 is commonly used as a research tool in animal and in vitro experiments.