Commonly occurring product ions for PI(20:0/18:3(9Z,12Z,15Z))) (View full structure)
m/z
Ion Description
Structure (click to enlarge)
887.5655
Precursor ion [M-H]-
725.5127
Loss of inositol from [M-H]-
627.3515
Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
609.3409
Neutral loss of sn2 RCOOH group from [M-H]-
593.2732
Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
575.2627
Neutral loss of sn1 RCOOH group from [M-H]-
465.2987
Loss of sn2 acyl chain as ketene (RCH=C=O) and inositol from [M-H]-
447.2881
Neutral loss of sn2 RCOOH group and inositol from [M-H]-
431.2204
Loss of sn1 acyl chain as ketene (RCH=C=O) and inositol from [M-H]-
413.2099
Neutral loss of sn1 RCOOH group and inositol from [M-H]-
315.0487
Glycerophosphoinositol -H2O
311.2956
sn1 RCOO- ion
297.0381
Glycerophosphoinositol -2H2O
277.2173
sn2 RCOO- ion
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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