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. 2021 Apr 29;11(5):807. doi: 10.3390/diagnostics11050807

Table 2.

Summary of the detected metabolites in the feces of KT and CT group.

Chemical Classes Compounds m/z Chemical Structure
Alkanes Tritetracontane 57.99 / 71.64 /43.47 MF: C43H88
MW: 605.2 g/mol
1,6,10,14,18,22-Tetracosahexaen-3-ol, 2,6,10,15,19,23-hexamethyl 96/81/41 MF: C30H50O
MW: 426.7 g/mol
6,6-Diethylhoctadecane 57/71/85 MF: C22H46
MW: 310.6 g/mol
nonadecane 57.99 / 43.82 / 71.66 MF: C19H40
MW: 268.5 g/mol
Heptadecane 57.99 / 43.65 / 71.64 MF: C17H36
MW:240.5 g/mol
4-Ethyloctane 57/43/41 MF: C10H22
MW: 142.28 g/mol
1,2-Epoxyoctadecane 82/55/71 MF: C18H36O
MW: 268.5 g/mol
Amines 1-Piperidine carboxaldehyde 113.08/ 56.05/ 84.04 MF: C6H11NO
MW: 113.16 g/mol
Piperidine,1-acetyl 84/43/127 MF: C7H13NO
MW: 127.18 g/mol
1-(Piperidine-1-yl)dodecan-1-ol 127.22/140.85/84.14 MF: C17H33NO
MW: 267.4 g/mol
Alkaloids 2- Piperidinimine 98.06/ 70.55/43.78 MF: C5H10N2
MW: 98.15 g/mol
Amino Acid Tyrosine 218.18/ 71.85/ 43.41 MF: C9H11NO3
MW: 181.19 g/mol
Benzenoids Phthalic acid,di(oct-3-yl) ester 149/ 167/ 150 MF: C24H38O4
MW: 390.6 g/mol
2,4-Dimethylbenzaldehyde 134.07/ 133.06/ 105.06 MF: C9H10O
MW: 134.17 g/mol
Dioctyl Phthalate 149.99/ 391.66/ 261.40 MF: C24H38O4
MW: 390.6 g/mol
Phthalic acid,di(hept-3-yl) 149.02/ 167.03/ 150 MF: C22H34O4
MW: 362.5 g/mol
Phthalic acid 149.1/ 139.2/ 121.3 MF: C8H6O4
MW: 166.13 g/mol
Mesitylene 105.99/ 120.86/77.98 MF: C9H12
MW: 120.19 g/mol
Carboxylic Acids Acrylic acid 72.2/27.23/55.17 MF:C3H4O2
MW: 72.06 g/mol
Triethyl Citrate 157/ 203/115 MF: C12H20O7
MW: 276.28 g/mol
Carotenoids Squalene 69.06/81.06/41.03 MF: C30H50
MW: 410.7 g/mol
psi.,.psi.-Carotene, 1,1′,2,2′-tetrahydro-1,1′-bis[(trimethylsilyl)oxy] 73.99/ 69.53/ 91.51 MF: C42H64O2
MW: 600.49 g/mol
Cumenes m-Cymene 93.02/ 135.11/ 121.08 MF: C10H14
MW: 134.22 g/mol
Dialkyldisulfides Dicyclohexyl sulfite 83/55/41 MF: C12H22O3S
MW: 246.37 g/mol
Dicarboxylic Acids Di2-ethylhexyladipate 129/371/259 MF: C22H42O4
MW: 370.6 g/mol
Long-Chain Fatty Acids Methyl 12-methyltridecanoate 74/55/75 MF: C15H30O2
MW: 242.4 g/mol
Stearic acid 117/129/132 MF: C18H36O2
MW: 284.5 g/mol
Palmitic acid 237.3/255.3/227.1 MF: C16H32O2
MW: 256.42 g/mol
Linoleic acid 263.1/256.1/95 MF: C18H32O2
MW: 280.4 g/mol
Short Chain Fatty Acids Acetic acid 43/55/60 MF: C2H4O2
MW: 60.05 g/mol
Butyric acid 43.05/87.04/29.04 MF: C4H8O2
MW: 88.11 g/mol
Fatty Acids Adipic acid 129.1/115.1/119.2 MF: C6H10O4
MW: 146.14 g/mol
Dichloroacetic acid, 4-hexadecyl ester 55.99/69.79/83.76 MF: C18H34Cl2O2
MW: 352.19 g/mol
Valeric acid 60.02/29.04/27.03 MF: C5H10O2
MW: 102.13 g/mol
Z-8-Methyl-9-tetradecenoic acid 55/41/43 MF: C15H28O2
MW: 240.38 g/mol
Ethyl-14-methyl-hexadecanoate 88/55/57 MF: C19H38O2
MW: 298.5 g/mol
Fatty Acids Esters Ethyl oleate 43.99/55.68/69.67 MF: C20H38O2
MW: 310.29 g/mol
Ethyl 9,12-hexadecadienoate 67/81/55 MF: C18H32O2
MW: 280.4 g/mol
Ethyl-13-methyl-tetradecanoate 88/101/55 MF: C17H34O2
MW: 270.5 g/mol
Ethyl hexadecanoate 257.5/219.3/237.3 MF: C18H36O2
MW: 284.5 g/mol
n-propyl-11-octadecenoate 55/69/83 MF: C21H40O2
MW: 324.5 g/mol
Stearyl Palmitate 257/57/43 MF: C34H68O2
MW: 508.9 g/mol
Fatty Alcohol 1-Hexadecanol 55.99/69.82/83.76 MF: C16H34O
MW: 242.26 g/mol
n-Nonadecanol-1 83/55/97 MF: C19H40O
MW: 284.5 g/mol
Fatty Aldehydes (Z)-14-Methyl-6-pentadecenoic acid 73.05/89.04/43.7 MF: C16H30O2
MW: 254.41 g/mol
Hydrocarbons 5-eicosene 55.99/57.77/43.69 MF: C20H40
MW: 280.31 g/mol
Indoles Indole 117.05/89.02/101.03 MF: C8H7N
MW: 117.15 g/mol
Skatole 131.07/103.04/77.03 MF: C9H9N
MW: 131.17 g/mol
Ketones Diacetone alcohol 43.02/59.05/57.03 MF: C6H12O2
MW: 116.16 g/mol
Non-metal sulfates Sulfurous acid,hexyl octyl ester 57/85/43 MF: C14H30O3S
MW: 278.45 g/mol
Sulfurous acid 81.97/53.9/64.96 MF: H2SO3
MW: 82.08 g/mol
Not Attributed 3,9.beta:14,15-Diepoxypregn-16-en-20-one,3,11.beta.,18-triacetoxy- 429.98/43.67/430.73 MF: C27H34O9
MW: 502.6 g/mol
Alanine, N-methyl-n-propoxycarbonyl-, isohexyl ester 144/102/43 MF: C14H27NO4
MW: 273.37 g/mol
5,9,14,18-Anthrazinetetrone, 6,15-dihydro-8-hydroxy- 458.09/49.55 MF: C28H14N2O5
MW: 458.4 g/mol
Phenols m-Cresol 81.03/91.05/67.01 MF: C7H8O
MW: 108.14 g/mol
Phenol,2,4,6-tris(1-methylethyl) 205.78/220.12/206.34 MF: C15H24O
MW: 220.35 g/mol
Phenylpropanes 2,4-Di-tert-butylphenol 191.99/57.32/41.16 MF: C14H22O
MW: 206.17 g/mol
Prenol lipids 2,6,10,15-tetramethylheptadecane 57.06/71.09/43.99 MF: C21H44
MW: 296.6 g/mol
Quinones 1,4-Naphthoquinone,6-acetyl 217.99/232.91/189.44/43.27 MF: C12H8O5
MW: 232.04 g/mol
Sterols Coprosterol 388.32/44.05/233.15 MF: C27H48O
MW: 388.7 g/mol
beta-Sitosterol 43.99/ 55.35/41.33 MF: C29H50O
MW: 414.39 g/mol
Cholesterol 43.99/55.89/57. 74 MF: C27H46O
MW: 386.35 g/mol
Ergost-22-en-3-ol (3alpha,5beta,22E) 55.04/69.06/81.04 MF: C28H48O
MW: 400.5 g/mol
Stigmastanol 43.99/107.71/215.7 MF: C29H52O
MW: 416.4 g/mol
Cholestenone 124/43/55 MF: C27H44O
MW: 384.6 g/mol
Gamma-Sitosterol 43/55/41 MF: C29H50O
MW: 414.7 g/mol
4,6-cholestadienol 43.99/143.7/135.63 MF: C27H44O
MW: 384.34 g/mol
Stigmasterol 255/83/159 MF: C29H48O
MW: 412.7 g/mol
Cholesterylene 368/81/147 MF: C27H44
MW:368.6g/mol
Steroids Epi-coprostanol 215/55/43 MF: C27H48O
MW: 388.7 g/mol
Campestanol 215/233/234 MF: C28H50O
MW: 402.7 g/mol
Cholest-4-ene 370.99/108.92/43.39 MF: C27H46
MW: 370.36 g/mol
Stanol 9,19-Cycloergost-24(28)-en-3-ol,4,14-dimethyl-, (3β,4α,5α)- 412.36/369.33/43.05 MF: C30H50O
MW:426.71 g/mol
Tocopherols gamma-Tocopherol 151.99/416.72/ 417.21 MF:C28H48O2
MW: 416.37 g/mol
Delta-Tocopherol 402/138/177 MF: C27H46O2
MW: 402.7 g/mol

MF: molecular formula; MW: molecular weight.