Commonly occurring product ions for PC(9:0/23:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
733.5627Precursor ion [M+]-
718.5392Loss of CH3 and from precursor ion
647.4657Loss of choline and from precursor ion
578.4191Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and from precursor ion
560.4086Neutral loss of sn1 RCOOH group, loss of CH3 and from precursor ion
382.2000Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and from precursor ion
364.1895Neutral loss of sn2 RCOOH group, loss of CH3 and from precursor ion
353.3425sn2 RCOO- ion
224.0693Glycerophosphocholine with loss of CH3 and H2O
168.0431Phosphocholine with loss of CH3
157.1234sn1 RCOO- ion
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