, which is a derivative of the methionine amino acid, defined mostly as vitamin U and various beneficial effects of Vit U have been demonstrated.
Rapid method for the determination of fatty acid profiles from fats and oils using trimethyl sulphonium
hydroxide for transesterification.
Generally, the cationic groups could be amino, ammonium, sulphonium
For dimethyltin(IV) derivatives, an abundant tin- containing sulphonium
ion, H3SSn(CH3)Cl+ is formed via dimethyl species S2Sn(CH3)2Cl,  which in sequence undergoes fragmentation to the terminal SnCl+ and Sn+ species, the latter perhaps derived from SnCH +.