SFB杂质4，98%

(2R,3R,4R,5S)-5-(4-benzamido-2-oxopyrimidin-1(2H)-yl)-2-((benzoyloxy)methyl)-4-fluoro-4-methyltetrahydrofuran-3-yl benzoate

仅供研发或工业应用，不可直接用于食品、药品、临床诊断或治疗。