Commonly occurring product ions for PC(O-18:1(9Z)/11:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
710.4897Precursor ion [M.chloride]-
660.4974Loss of CH3 and chloride from precursor ion
589.4239Loss of choline and chloride from precursor ion
492.3460Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
474.3354Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
403.2619Loss of choline, chloride and neutral loss of sn2 RCOOH group from precursor ion
224.0693Glycerophosphocholine with loss of CH3 and H2O
185.1547sn2 RCOO- ion
168.0431Phosphocholine with loss of CH3
152.9958Glycerol-3-phosphate ion with loss of H2O
96.9696H2PO4- ion (from phosphate)
78.9591PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases