Commonly occurring product ions for PC(17:0/32:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1006.7976Precursor ion [M.chloride]-
956.8053Loss of CH3 and chloride from precursor ion
885.7318Loss of choline and chloride from precursor ion
704.5600Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
686.5494Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
494.3252Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
479.4834sn2 RCOO- ion
476.3147Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
269.2486sn1 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