Commonly occurring product ions for PC(13:0/4:1(3E)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
556.2812Precursor ion [M.chloride]-
506.2888Loss of CH3 and chloride from precursor ion
438.2626Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
435.2153Loss of choline and chloride from precursor ion
420.2521Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
310.1061Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
292.0956Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
224.0693Glycerophosphocholine with loss of CH3 and H2O
213.1860sn1 RCOO- ion
168.0431Phosphocholine with loss of CH3
152.9958Glycerol-3-phosphate ion with loss of H2O
96.9696H2PO4- ion (from phosphate)
85.0295sn2 RCOO- ion
78.9591PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases