The molecule is a single-stranded RNA polynucleotide consisting of a repeating unit of deoxyguanosine and 5-methyldeoxyadenosine residues, with all residues connected by 3'-5' phosphodiester linkages.
[(2R,3S,5R)-5-(2-amino-6-oxo-1H-purin-9-yl)-4-hydroxy-2-(phosphonooxymethyl)oxolan-3-yl] [(2R,3S,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl hydrogen phosphate