Commonly occurring product ions for PC(20:3(5Z,8Z,11Z)/20:0)) (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
536.3722Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
530.3252Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
518.3616Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
512.3147Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
311.2956sn2 RCOO- ion
305.2486sn1 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