Azacitidine Impurity 6 Catalogue A206556 CAS 10302-78-0 M.W 370.32 M.F C14H18N4O8 Specifications FAQs (2R,3R,4R,5R)-2-(acetoxymethyl)-5-(4-amino-2-oxo-1,3,5-triazin- 1(2H)-yl)tetrahydrofuran-3,4-diyl diacetate