5-Aminoimidazole ribotide
| Names | |
|---|---|
| IUPAC name
 1-(5-Amino-1H-imidazol-1-yl)-1-deoxy-β-D-ribofuranose 5-(dihydrogen phosphate)  | |
| Systematic IUPAC name
 [(2R,3S,4R,5R)-5-(5-Amino-1H-imidazol-1-yl)-3,4-dihydroxyoxolan-2-yl]methyl dihydrogen phosphate  | |
| Other names
 AIR, [5-(5-amino-1-imidazolyl)-3,4-dihydroxy-2-tetrahydrofuranyl]methyl dihydrogen phosphate  | |
| Identifiers | |
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| KEGG | |
| MeSH | aminoimidazole+ribotide | 
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| Properties | |
| C8H14N3O7P | |
| Molar mass | 295.186 g/mol | 
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). 
Infobox references  | |
5′-Phosphoribosyl-5-aminoimidazole (or aminoimidazole ribotide, AIR) is a biochemical intermediate in the formation of purine nucleotides via inosine-5-monophosphate, and hence is a building block for DNA and RNA. The vitamins thiamine and cobalamin also contain fragments derived from AIR. It is an intermediate in the adenine pathway and is synthesized from 5′-phosphoribosylformylglycinamidine by AIR synthetase.