| # | Metabolite | ID | PubChem CID | HMDB ID | KEGG ID | ChEBI ID | Molecular formula |
|---|---|---|---|---|---|---|---|
| 101 | Hypoxanthine | 78 | 135398638 | HMDB0000157 | N/A | N/A | C5H4N4O |
| 102 | Imidazole | 149 | 795 | HMDB0001525 | N/A | N/A | C3H4N2 |
| 103 | IMP | 54 | 135398640 | HMDB0000175 | N/A | N/A | C10H13N4O8P |
| 104 | Inosine | 55 | 135398641 | HMDB0000195 | N/A | N/A | C10H12N4O5 |
| 105 | Isobutyric acid | 18 | 6590 | HMDB0001873 | C02632 | 16135 | C4H8O2 |
| 106 | Isoleucine | 17 | 6306 | HMDB0000172 | C00407 | 17191 | C6H13NO2 |
| 107 | Isovaleric acid | 187 | 10430 | HMDB0000718 | C08262 | 28484 | C5H10O2 |
| 108 | Ketoleucine | 14 | 70 | HMDB0000695 | C00233 | 48430 | C6H10O3 |
| 109 | Kynurenine | 90 | 846 | HMDB0000684 | N/A | N/A | C10H12N2O3 |
| 110 | Lactic acid | 19 | 107689 | HMDB0000190 | C00186 | 422 | C3H6O3 |