5′-Phosphoribosyl-4-carboxy-5-aminoimidazole

5′-Phosphoribosyl-4-carboxy-5-aminoimidazole (or CAIR) is an intermediate in the formation of purines.

5′-Phosphoribosyl-4-carboxy-5-aminoimidazole

Names
IUPAC name 5-Amino-1-(5-O-phosphono-β-D-ribofuranosyl)-1H-imidazole-4-carboxylic acid
Systematic IUPAC name 5-Amino-1-{(2R,3R,4S,5R)-3,4-dihydroxy-5-[(phosphonooxy)methyl]oxolan-2-yl}-1H-imidazole-4-carboxylic acid
Other names Carboxyaminoimidazole ribotide, Carboxyaminoimidazole ribonucleotide, CAIR,
Identifiers
CAS Number	6001-14-5^Y
3D model (JSmol)	Interactive image Interactive image
ChEBI	CHEBI:28413^Y
ChemSpider	144983^Y
PubChem CID	165388
UNII	5MA501Z5DO^Y
CompTox Dashboard (EPA)	DTXSID50208716
InChI InChI=1S/C9H14N3O9P/c10-7-4(9(15)16)11-2-12(7)8-6(14)5(13)3(21-8)1-20-22(17,18)19/h2-3,5-6,8,13-14H,1,10H2,(H,15,16)(H2,17,18,19)/t3-,5-,6-,8-/m1/s1^Y Key: XFVULMDJZXYMSG-ZIYNGMLESA-N^Y InChI=1/C9H14N3O9P/c10-7-4(9(15)16)11-2-12(7)8-6(14)5(13)3(21-8)1-20-22(17,18)19/h2-3,5-6,8,13-14H,1,10H2,(H,15,16)(H2,17,18,19)/t3-,5-,6-,8-/m1/s1 Key: XFVULMDJZXYMSG-ZIYNGMLEBD
SMILES C1=NC(=C(N1[C@H]2[C@@H]([C@@H]([C@H](O2)COP(=O)(O)O)O)O)N)C(=O)O O=P(O)(O)OC[C@H]2O[C@@H](n1cnc(C(=O)O)c1N)[C@H](O)[C@@H]2O
Properties
Chemical formula	C9H14N3O9P
Molar mass	339.196 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references

It is formed by phosphoribosylaminoimidazole carboxylase.