Commonly occurring product ions for PI(O-22:1(9Z)/26:1(5Z)) (View full structure)
m/z
Ion Description
Structure (click to enlarge)
1015.7584
Precursor ion [M-H]-
853.7056
Loss of inositol from [M-H]-
639.3879
Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
621.3773
Neutral loss of sn2 RCOOH group from [M-H]-
477.3351
Loss of sn2 acyl chain as ketene (RCH=C=O) and inositol from [M-H]-
459.3245
Neutral loss of sn2 RCOOH group and inositol from [M-H]-
393.3738
sn2 RCOO- ion
315.0487
Glycerophosphoinositol -H2O
297.0381
Glycerophosphoinositol -2H2O
259.0225
Inositol phosphate ion
241.0119
Inositol phosphate ion - H2O
223.0013
Inositol phosphate ion - 2 H2O
152.9958
Glycerol-3-phosphate ion with loss of H2O
96.9696
H2PO4- ion (from phosphate)
78.9591
PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases
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