5-Aminoimidazole ribonucleotide sodium

5-Aminoimidazole ribonucleotide sodium (AIR) is an intermediate in purine biosynthesis. It undergoes further enzymatic modification to eventually form inosine monophosphate (IMP), which can then be converted into the purine bases adenine (A) and guanine (G) . 5-Aminoimidazole ribonucleotide sodium is considered an endogenous metabolite (endogenous metabolite) .