Commonly occurring product ions for PE(14:1(9Z)/22:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
744.5549Precursor ion [M-H]-
536.3722Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
518.3616Neutral loss of sn1 RCOOH group from [M-H]-
422.2313Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
404.2208Neutral loss of sn2 RCOOH group from [M-H]-
339.3269sn2 RCOO- ion
225.1860sn1 RCOO- ion
152.9958Glycerol-3-phosphate ion with loss of H2O
140.0118Ethanolamine phosphate ion
122.0013Ethanolamine 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