英文别名N-Formyl-D-ribofuranosyl-3-guanylurea; N-[amino-[[(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]carbamoylamino]methylidene]formamide; [(Formylamino)iminomethyl]ribofuranosylurea; N-(formylamidino)-N'-ribofuranosylurea; Azacitidine Impurity 25 
