The molecule is a purine ribonucleoside 5'-monophosphate consisting of 5'-xanthylic acid having an oxo group at the 8-position. It derives from a 5'-xanthylic acid.
[(2R,3S,4R,5R)-3,4-dihydroxy-5-(2,6,8-trioxo-3,7-dihydropurin-9-yl)oxolan-2-yl]methyl dihydrogen phosphate