9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1H-purin-6(9H)-one-13C3;1,9-Dihydro-9-?-D-ribofuranosyl-6H-purin-6-one-13C3; 9-?-D-Ribofuranosylhypoxanthine-13C3; Hypoxanthine 9-?-D-ribofuranoside-13C3; Hypoxanthine Ribonucleoside-13C3; Hypoxanthine Riboside-13C3;Inosine-13C3
