Chemical Name: Alpha + Beta Aldehyde Mixture ; 1-((2S,3S,4S,5S)-3-fluoro-4-hydroxy-5-(hydroxymethyl)-3-methyltetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione + 1-((2R,3S,4S,5S)-3-fluoro-4-hydroxy-5-(hydroxymethyl)-3-methyltetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione.