Commonly occurring product ions for PC(20:1(11Z)/24:4(5Z,8Z,11Z,14Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
926.6411Precursor ion [M.chloride]-
876.6488Loss of CH3 and chloride from precursor ion
805.5753Loss of choline and chloride from precursor ion
584.3722Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
566.3616Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
534.3565Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
516.3460Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
359.2956sn2 RCOO- ion
315.3057Loss of CO2 from sn2 RCOO- ion (PUFA)
309.2799sn1 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