5-(5'-phospho-D-ribosyl-aminoformimino)-1-(5-phosphoribosyl)-imidazole-4-carboxamide 5-(5-phospho-D-ribosyl-aminoformimino)-1-(5-phosphoribosyl)-imidazole4-carboxamide N-(5'-phospho-D-ribosylformimino)-5-amino-1-(5''-phosphoribosyl)-4-imidazolecarboxamide N-5-phosphoribosyl-formimino-5-amino-imidazole-4-carboxamide ribonucleotide PHOSPHORIBOSYL-FORMIMINO-AICAR-P phosphoribosylformiminoAICAR-P phosphoribosylformiminoAICAR-phosphate