| GAR | 5′-Phosphoribosylglycinamide |
| FGAR | N-Formylglycinamide ribonucleotide |
| FGAM | 5′-Phosphoribosyl-N-formylglycinamidine |
| AIR | 5′-Phosphoribosyl-5-aminoimidazole |
| CAI | 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole |
| CAIR | 5′-Phosphoribosyl-5-amino-4-imidazolecarboxylate |
| SACAIR | 5′-Phosphoribosyl-4-(N-succinocarboxamide)-5-aminoimidazole |
| AICAR | 5′-Phospho-ribosyl-5-amino-4-imidazole carboxamide |
| FAICAR | 5′-Phosphoribosyl-5-formamido-4-imidazolecarboxamide |
| AIC | 5-Amino-4-imidazolecarboxyamide |