| # | Metabolite | ID | PubChem CID | HMDB ID | KEGG ID | ChEBI ID | Molecular formula |
|---|---|---|---|---|---|---|---|
| 51 | Betaine | 59 | 247 | HMDB0000043 | N/A | N/A | C5H11NO2 |
| 52 | Butyric acid | 171 | 264 | HMDB0000039 | C00246 | 30772 | C4H8O2 |
| 53 | Carnitine | 4 | 10917 | HMDB0000062 | N/A | N/A | C7H15NO3 |
| 54 | Carnosine | 107 | 439224 | HMDB0000033 | N/A | N/A | C9H14N4O3 |
| 55 | Cholic acid | 119 | 221493 | HMDB0000619 | N/A | N/A | C24H40O5 |
| 56 | Choline | 34 | 305 | HMDB0000097 | N/A | N/A | C5H14NO+ |
| 57 | Citicoline | 181 | 13804 | N/A | N/A | N/A | C14H26N4O11P2 |
| 58 | Citric acid | 84 | 311 | HMDB0000094 | N/A | N/A | C6H8O7 |
| 59 | Citrulline | 124 | 9750 | HMDB0000904 | N/A | N/A | C6H13N3O3 |
| 60 | CMP | 75 | 6131 | HMDB0000095 | N/A | N/A | C9H14N3O8P |