| No. | Ion mode | tR(min) | Formula | Measured mass m/z | MS2 | Compound name | HMDB_ID | Error ppm | PHT vs. C | Rvs. PHT |
| 1 | Pos | 19.43 | C6H12N2O4S2 | 241.0309 (M + H) | 151.9835, 120.0116, 122.0272, 76.9286 | L-Cystine | HMDB0000192 | 2.904 | Down | Down | 2 | Pos | 0.73 | C8H14N3O7P | 296.0657 (M + H) | 104.1074, 236.9923, 86.097, 169.9858, 105.1107 | 5-Aminoimidazole ribonucleotide | HMDB0001235 | 5.742 | Down | Up | 3 | Pos | 1.50 | C8H16O2 | 306.2636 (2M + NH4) | 172.9535, 154.9421 | Valproic acid | HMDB0001877 | 6.680 | Up | Down | 4 | Pos | 5.68 | C14H12O3 | 251.0701 (M + Na) | 56.9656, 205.0374, 228.0539 | Resveratrol | HMDB0003747 | 6.891 | Up | Down | 5 | Pos | 0.78 | C5H9NO4 | 192.0242 (M + 2Na − H) | 151.035, 128.0191 | L-Glutamic acid | HMDB0000148 | 3.854 | Down | Up | 6 | Pos | 4.83 | C10H12N4O6 | 285.0828 (M + H) | 153.0406, 133.0496 | Xanthosine | HMDB0000299 | 2.455 | Down | Up | 7 | Pos | 0.84 | C7H14N2O3 | 197.0896 (M + Na) | 80.9485, 179.0903, 82.9456, 138.0524 | N-Acetylornithine | HMDB0003357 | 2.892 | Down | Up | 8 | Pos | 14.74 | C20H32O5 | 375.2138 (M + Na) | — | Prostaglandin E2 | HMDB0001220 | 2.585 | Up | Up | 9 | Pos | 2.49 | C6H10O3 | 175.0342 (M + 2Na − H) | 74.9316, 115.9577, 133.9679, 128.951 | 4-Methyl-2-oxovaleric acid | HMDB0000695 | 3.085 | Up | Down | 10 | Pos | 1.76 | C6H6N2O2 | 139.0422 (M + H) | 84.9603, 77.0063, 81.0706, 95.0861, 102.9707 | Nicotinamide-N-oxide | HMDB0002730 | −7.994 | Up | Down | 11 | Pos | 1.24 | C4H9NO3 | 120.0655 (M + H) | 72.0815, 61.0405, 73.0848, 103.0547, 55.0552, 74.0607 | L-Homoserine | HMDB0000719 | 4.164 | Down | Up | 12 | Pos | 12.88 | C18H37NO2 | 300.2893 (M + H) | 270.2787, 282.2787 | 3-Dehydrosphinganine | HMDB0001480 | 2.997 | Down | Up | 13 | Pos | 2.76 | C8H9NO | 199.0841 (M + CH3CN + Na) | 154.0419, 156.0388, 155.0455 | 2-Phenylacetamide | HMDB0010715 | 3.114 | Down | Up | 14 | Pos | 11.03 | C13H20O | 239.1639 (M + H + HCOOH) | 221.1535, 193.1586, 175.148 | Alpha-ionone | HMDB0059883 | 3.261 | Down | Up | 15 | Pos | 17.50 | C42H78NO10P | 752.5192 (M + H − 2H2O) | 184.0732, 146.9818 | PS (18 : 1(9Z)/18 : 1(9Z)) | HMDB0012390 | 5.023 | Down | Up | 16 | Pos | 14.01 | C20H30O3 | 283.2053 (M + H − 2H2O) | 265.1948, 223.1479 | 12-HEPE | HMDB0010202 | 3.107 | Down | Up | 17 | Pos | 15.17 | C20H34O3 | 305.2471 (M + H − H2O) | 119.0857, 93.0704, 105.0702, 133.1011, 147.1168, 175.1117 | 15S-Hydroxy-8Z, 11Z, 13E-eicosatrienoic acid | HMDB0005045 | 3.079 | Down | Up | 18 | Pos | 11.04 | C21H36O3 | 405.2632 (M + Na + HCOOH) | 363.1469, 351.2314 | Pregnanetriol | HMDB0006070 | 3.825 | Down | Up | 19 | Pos | 16.56 | C27H44O2 | 401.3411 (M + H) | 383.3298, 97.0652, 177.1275, 384.3336, 95.0859, 81.0704 | 7-alpha-hydroxy-4-cholesten-3-one | HMDB0001993 | 1.993 | Down | Down | 20 | Pos | 15.76 | C22H34O2 | 331.2627 (M + H) | 105.0702, 119.0857, 91.0547, 131.0856, 81.0705 | cis-7, 10, 13, 16, 19-Docosapentaenoic acid | HMDB0006528 | 3.019 | Down | Up | 21 | Pos | 8.86 | C42H83O8P | 810.6051 (M + CH3CN + Na) | 114.0916, 209.1645, 322.2485, 228.1591 | PA (20 : 0/i-19 : 0) | HMDB0115641 | 7.624 | Down | Up | 22 | Pos | 17.76 | C42H84NO8P | 806.5682 (M + 2Na − H) | 184.0731, 86.0969, 185.0766 | PE-NMe (18 : 0/18 : 0) | HMDB0112975 | 3.670 | Down | Up | 23 | Pos | 17.76 | C40H78NO8P | 754.5369 (M + Na) | 184.0731, 59.0499, 86.097 | PE-NMe (20 : 0/14 : 1(9Z)) | HMDB0113280 | 0.967 | Up | Down | 24 | Pos | 13.69 | C20H32O6 | 391.2087 (M + Na) | 149.0235 | Thromboxane B3 | HMDB0005099 | 2.479 | Up | Up | 25 | Pos | 5.58 | C5H11NO2Se | 244.0108 (M + H + HCOOH) | 156.0387, 202.044, 157.0422 | Seleno-L-methionine | HMDB0003966 | 8.278 | Up | Down | 26 | Pos | 12.18 | C9H13N5O3 | 222.0964 (M + H-H2O) | 201.5828, 190.0749, 202.0844, 165.0489 | 7,8-Dihydro-L-biopterin | HMDB0000038 | 9.686 | Up | Up | 27 | Pos | 4.01 | C10H13N5O4 | 268.1039 (M + H) | 136.0619, 137.0459 | Adenosine | HMDB0000050 | 2.611 | Up | Down | 28 | Pos | 11.32 | C26H43NO5 | 467.3475 (M + NH4) | 414.2999, 432.3105, 415.3034 | Glycochenodeoxycholic acid | HMDB0000637 | −0.961 | Down | Up | 29 | Neg | 10.27 | C9H14N4O3 | 451.2052 (2M − H) | 96.968 | L-Carnosine | HMDB0000033 | 0.937 | Up | Down | 30 | Neg | 1.03 | C5H4N4O2 | 187.0004 (M + Cl) | 96.968, 57.974, 87.0071, 128.0338 | Xanthine | HMDB0000292 | 9.893 | Up | Down | 31 | Neg | 1.47 | C6H12O5 | 201.0162 (M − 2H + K) | 164.8348, 162.8378 | L-Fucose | HMDB0000174 | 4.527 | Up | Down | 32 | Neg | 10.49 | C24H40O5 | 443.2571 (M + Cl) | 121.028, 113.0228 | Allocholic acid | HMDB0000505 | 1.466 | Down | Up | 33 | Neg | 9.20 | C9H10O4 | 181.0495 (M − H) | 96.9585, 61.9867, 153.9212 | Dihydrocaffeic acid | HMDB0000423 | 0.137 | Up | Up | 34 | Neg | 10.11 | C12H22O11 | 342.1155 (M−) | 164.115, 163.1116, 165.1184 | Kojibiose | HMDB0011742 | 2.046 | Up | Down | 35 | Neg | 16.93 | C24H40O3 | 411.2675(M + Cl) | 375.2904, 357.2799, 235.17, 376.2939 | Lithocholic acid | HMDB0000761 | 2.310 | Down | Up | 36 | Neg | 19.99 | H3O4P | 194.9457 (2M − H) | 160.8408, 96.9583 | Hydrogen phosphate | HMDB0000973 | 1.539 | Up | Down | 37 | Neg | 14.92 | C20H32O3 | 639.4633 (2M − H) | 319.2279, 179.1067, 320.2313 | 12R-HETE | — | 1.407 | Down | Up | 38 | Neg | 14.79 | C22H32O3 | 379.2047 (M + Cl) | 343.2279, 344.2314, 205.1226, 281.2274 | 16(17)-Epoxy-4Z, 7Z, 10Z, 13Z, 19Z-docosapentaenoic acid | HMDB0013621 | 1.978 | Down | Up | 39 | Neg | 14.79 | C22H32O3 | 325.2176 (M − H2O − H) | 163.1116, 149.0958 | 17-HDoHE | HMDB0010213 | 2.644 | Down | Up | 40 | Neg | 13.88 | C19H28O2 | 307.2048 (M + F) | 271.2279, 272.2313, 225.2218 | Androstanedione | HMDB0000899 | 8.138 | Up | Down | 41 | Neg | 11.90 | C19H30O5S | 391.1533 (M − 2H + Na) | 96.968, 78.9574, 96.9589, 293.1759 | Androsterone sulfate | HMDB0002759 | 5.803 | Up | Down | 42 | Neg | 14.93 | C23H32O6 | 439.1873 (M + Cl) | 96.968, 96.9584, 314.024, 118.8982 | Hydrocortisone acetate | HMDB0014879 | 3.302 | Up | Down | 43 | Neg | 13.44 | C18H32O2 | 279.2329 (M − H) | 237.2219, 238.2252 | Linoleic acid | HMDB0000673 | 1.791 | Down | Up | 44 | Neg | 16.42 | C20H32O5 | 371.2229 (M + F) | 217.1225, 195.1018, 163.1115, 149.0962 | Lipoxin A4 | HMDB0004385 | 1.347 | Up | Down | 45 | Neg | 14.78 | C48H84NO10P | 864.5755 (M − H) | 343.2278 | PS (20 : 0/22 : 5(4Z, 7Z, 10Z, 13Z, 16Z)) | HMDB0112535 | 0.000 | Down | Up | 46 | Neg | 15.86 | C48H90NO10P | 870.6232 (M − H) | 347.2589, 207.1382, 283.2643, 329.2485, 508.3403, 348.2623 | PS (20 : 2(11Z, 14Z)/22 : 0) | HMDB0112585 | 0.919 | Down | Up | 47 | Neg | 17.43 | C50H90NO10P | 876.6099 (M − H2O − H) | 339.2328, 340.2361, 163.1115, 303.233, 815.5432, 304.2362 | PS (22 : 0/22 : 4(7Z, 10Z, 13Z, 16Z)) | HMDB0112730 | 2.213 | Down | Up | 48 | Neg | 14.41 | C50H88NO10P | 933.6308 (M − H + CH3CN) | 438.2989, 439.3022, 140.0104, 377.2462, 78.9574 | PS (22 : 0/22 : 5(4Z, 7Z, 10Z, 13Z, 16Z)) | HMDB0112731 | 2.731 | Down | Up | 49 | Neg | 15.09 | C50H88NO10P | 892.6074 (M − H) | 345.2434, 207.1382, 327.2331, 307.2646, 532.3407, 346.2474 | PS (22 : 0/22 : 5(7Z, 10Z, 13Z, 16Z, 19Z)) | HMDB0112732 | 0.672 | Down | Up | 50 | Neg | 12.66 | C11H22O2 | 185.1538 (M − H) | 61.9867, 141.1272, 116.9271 | Undecanoic acid | HMDB0000947 | 2.160 | Up | Down | 51 | Neg | 6.13 | C5H11O8P | 228.9968 (M − H) | 149.0595, 79.9557 | Xylulose 5-phosphate | HMDB0000868 | 6.375 | Up | Down | 52 | Neg | 12.71 | C15H21N5O13P2 | 576.0356 (M + Cl) | 159.8587, 157.8619, 540.059 | Cyclic ADP-ribose | HMDB0249529 | 9.809 | Up | Down |
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