Precursor Name Precursor Formula Precursor m/z Precursor Charge Explicit Retention Time Product m/z Product Charge Label Type Glycine C2H5NO2 76.03 1 10.1 30.2 1 Glycine C'2H5N'O2 79.04 1 10.1 32 1 heavy Alanine C3H7NO2 90.05 1 9.5 44 1 Alanine C'3H7N'O2 94.06 1 9.5 47 1 heavy Dimethylglycine C4H9NO2 104.07 1 7.3 58.2 1 Alpha_Aminobutyric C4H9NO2 104.07 1 8.7 58.2 1 Gamma_Aminobutyric C4H9NO2 104.07 1 11.1 87.1 1 Ser C3H7NO3 106.04 1 10.3 60.2 1 Ser C'3H7N'O3 110.05 1 10.3 63.2 1 heavy Creatinine C4H7N3O 114.06 1 7 86.09 1 Pro C5H9NO2 116.07 1 7.8 70.06 1 Val C5H11NO2 118.08 1 7.9 72.1 1 AminoPentanoic acid C5H11NO2 118.08 1 10.7 101 1 Thre C4H9NO3 120.06 1 9.6 74 1 Pro C'5H9N'O2 122.08 1 7.8 75 1 heavy Val C'5H11N'O2 124.1 1 7.9 77.09 1 heavy Thre C'4H9N'O3 125.07 1 9.6 78 1 Pyrogltamic acid C5H7NO3 130.05 1 10.4 84.04 1 HydroxyProline C5H9NO3 132.06 1 9.2 86.06 1 Iso_Leu C6H13NO2 132.1 1 6.4 86.09 1 Leu C6H13NO2 132.1 1 6.9 86.09 1 Asn C4H8N2O3 133.06 1 10.5 74 1 Orn C5H12N2O2  133.09 1 20.3 70.2 1 Asp C4H7NO4 134.04 1 9.9 74.02 1 Asp C'4H7N'O4 139.05 1 9.8 77 1 heavy Iso_Leu C'6H13N'O2 139.11 1 6.4 92.1 1 heavy Leu C'6H13N'O2 139.11 1 6.9 92.1 1 heavy Gln C5H10N2O3 147.07 1 10.3 84.1 1 Lys C6H14N2O2 147.11 1 20.1 84.1 1 Glu C5H9NO4 148.06 1 9.6 84.044 1 Met C5H11NO2S 150.05 1 7.2 61 1 Glu C'5H9N'O4 154.07 1 9.6 89.1 1 heavy Lys C'6H14N'2O2 155.12 1 20.1 90.1 1 heavy Met C'5H11N'O2S 156.07 1 7.2 63 1 heavy His C6H9N3O2 156.07 1 19.1 110.07 1 Aminoadipic C6H11NO4 162.07 1 9.4 98 1 His C'6H9N'3O2 165.08 1 19.1 118.08 1 heavy Phe C9H11NO2 166.08 1 5.8 120.08 1 3methylHis C7H11N3O2 170.09 1 19.2 96.1 1 Arg C6H14N4O2 175.1 1 21.7 70.1 1 Phe C'9H11N'O2 176.1 1 5.6 129.1 1 heavy Citrulline C6H13N3O3 176.1 1 10.9 70.1 1 Tyr C9H11NO3 182.08 1 7.5 136.1 1 Arg C'6H14N'4O2 185.12 1 21.7 75.1 1 heavy Tyr C'9H11N'O3 192.1 1 7.5 145 1 heavy AsymDimethArg C8H18N4O2 203.15 1 18.7 70.1 1 Trp C11H12N2O2 205.09 1 5.8 144.08 1 Cystathionine C7H14N2O4S 223.07 1 13 134 1 Cys C6H12N2O4S2 241.03 1 12.9 120 1 Cys C'6H12N'2O4S2 249.04 1 12.9 124 1 heavy