Commonly occurring product ions for MG(18:4(6Z,9Z,12Z,15Z)/0:0/0:0)

m/z	Ion Description
351.2530	Precursor ion [M+H]+
350.2457	Precursor ion [M+NH4]+
333.2424	Precursor ion [M+H]+ with loss of H2O
277.2162	sn1 [RCOOH+H]+
259.2056	sn1 acyl chain ([RC=O]+)
241.1951	sn1 acyl chain ([RC=O]+ with loss of H2O)