5'-p-Ribosyl-5-formamido-4-imidazole carboxamide 5'-p-Ribosyl-5-formamido-4-imidazolecarboxamide 5'-phosphoribosyl-5-formamido-4-imidazole carboxamide 5-Phosphoribosyl-5-formamido-4-imid-carboxamide 5-formamido-1-(5-phosphoribosyl)-imidazole-4-carboxamide PHOSPHORIBOSYL-FORMAMIDO-CARBOXAMIDE