Tags: Chemical Compound, Chemical Substance.
Choline is a water-soluble essential nutrient. It is usually grouped within the B-complex vitamins. Choline generally refers to the various quaternary ammonium salts containing the NNN-trimethylethanolammonium cation. (X− on the right denotes an undefined counteranion).The cation appears in the head groups of phosphatidylcholine and sphingomyelin two classes of phospholipid that are abundant in cell membranes.
