Commonly occurring product ions for PC(O-12:0/20:4(5Z,8Z,11Z,14Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
746.4897Precursor ion [M.chloride]-
696.4974Loss of CH3 and chloride from precursor ion
625.4239Loss of choline and chloride from precursor ion
410.2677Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
392.2571Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
321.1836Loss of choline, chloride and neutral loss of sn2 RCOOH group from precursor ion
303.2330sn2 RCOO- ion
259.2431Loss of CO2 from sn2 RCOO- ion (PUFA)
224.0693Glycerophosphocholine with loss of CH3 and H2O
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