英文别名1-(diaminomethylidene)-3-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]urea; N-[(Diaminomethylene)carbamoyl]-β-D-ribofuranosylamine; N-[(diaminomethylidene)carbamoyl]-beta-D-ribofuranosylamine; Azacitidine Impurity 38; Urea,N-(aminoiminomethyl)-N'-b-D-ribofuranosyl-; Azacitidine Amine Impurity; Urea, N-(aminoiminomethyl)-N'-β-D-ribofuranosyl-; (β)-1-D-Ribofuranosyl-3-guanylurea 
