| # | Metabolite | ID | PubChem CID | HMDB ID | KEGG ID | ChEBI ID | Molecular formula |
|---|---|---|---|---|---|---|---|
| 111 | Imidazole | 149 | 795 | HMDB0001525 | N/A | N/A | C3H4N2 |
| 112 | IMP | 54 | 135398640 | HMDB0000175 | N/A | N/A | C10H13N4O8P |
| 113 | Inosine | 55 | 135398641 | HMDB0000195 | N/A | N/A | C10H12N4O5 |
| 114 | Isobutyric acid | 18 | 6590 | HMDB0001873 | C02632 | 16135 | C4H8O2 |
| 115 | Isoleucine | 17 | 6306 | HMDB0000172 | C00407 | 17191 | C6H13NO2 |
| 116 | Isovaleric acid | 187 | 10430 | HMDB0000718 | C08262 | 28484 | C5H10O2 |
| 117 | Ketoleucine | 14 | 70 | HMDB0000695 | C00233 | 48430 | C6H10O3 |
| 118 | Kynurenine | 90 | 846 | HMDB0000684 | N/A | N/A | C10H12N2O3 |
| 119 | Lactic acid | 19 | 107689 | HMDB0000190 | C00186 | 422 | C3H6O3 |
| 120 | Leucine | 13 | 6106 | HMDB0000687 | C00123 | 15603 | C6H13NO2 |