Commonly occurring product ions for PC(18:3(9Z,12Z,15Z)/22:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
874.6098Precursor ion [M.chloride]-
824.6175Loss of CH3 and chloride from precursor ion
753.5440Loss of choline and chloride from precursor ion
564.4035Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
546.3929Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
502.2939Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
484.2834Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
339.3269sn2 RCOO- ion
277.2173sn1 RCOO- ion
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