1-(5'-phosphoribosyl)-4-carboxy-5-aminoimidazole 1-(5'-phosphoribosyl)-5-amino-4-imidazole carboxylate 1-(5-phosphoribosyl)-4-carboxy-5-aminoimidazole 5'-P-ribosyl-4-carboxy-5-aminoimidazole 5'-phosphoribosyl-4-carboxy-5-aminoimidazole 5-phosphoribosyl-4-carboxy-5-aminoimidazole CAIR PHOSPHORIBOSYL-CARBOXY-AMINOIMIDAZOLE