Commonly occurring product ions for PE(26:2(5E,9Z)/4:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
658.4453Precursor ion [M-H]-
588.4035Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
570.3929Neutral loss of sn2 RCOOH group from [M-H]-
391.3582sn1 RCOO- ion
284.0905Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
266.0799Neutral loss of sn1 RCOOH group from [M-H]-
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)
87.0452sn2 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