| L-Glutamate |
| 2-Oxoglutarate |
| L-Aspartate |
| 5-Phospho-alpha-D-ribose 1-diphosphate |
| L-Histidine |
| Carnosine |
| Histamine |
| N-Formimino-L-glutamate |
| Urocanate |
| L-Histidinol |
| N-Formyl-L-aspartate |
| N-Formyl-L-glutamate |
| L-Histidinol phosphate |
| N(pi)-Methyl-L-histidine |
| beta-Alanyl-N(pi)-methyl-L-histidine |
| 3-(Imidazol-4-yl)-2-oxopropyl phosphate |
| L-Histidinal |
| 1-(5-Phospho-D-ribosyl)-ATP |
| Phosphoribosyl-AMP |
| Imidazole-4-acetate |
| Imidazol-5-yl-pyruvate |
| N-Formimino-L-aspartate |
| 4-Imidazolone-5-propanoate |
| 1-(5-Phosphoribosyl)imidazole-4-acetate |
| D-erythro-1-(Imidazol-4-yl)glycerol 3-phosphate |
| 1-(5'-Phosphoribosyl)-5-amino-4-imidazolecarboxamide |
| 5-(5-Phospho-D-ribosylaminoformimino)-1-(5-phosphoribosyl)-imidazole-4-carboxamide |
| N-(5'-Phospho-D-1'-ribulosylformimino)-5-amino-1-(5''-phospho-D-ribosyl)-4-imidazolecarboxamide |
| N-Methylhistamine |
| Imidazole-4-acetaldehyde |
| (1-Ribosylimidazole)-4-acetate |
| 4-Imidazolone-5-acetate |
| 4-(beta-Acetylaminoethyl)imidazole |
| Hydantoin-5-propionate |
| Imidazole lactate |
| Ergothioneine |
| Thiourocanic acid |
| 4-Oxoglutaramate |
| Hercynine |
| Methylimidazole acetaldehyde |
| Methylimidazoleacetic acid |
| N-Carbamyl-L-glutamate |
| Isoglutamine |
| Formylisoglutamine |
