Flucytosine EP Impurity B

Chemical Name: 2-Ethoxy-5-fluoropyrimidin-4(3H)-one

Synonym: (2S,4S)-N-((1S,2S)-2-chloro-1-((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(methylthio)tetrahydro-2H-pyran-2-yl)propyl)-1-methyl-4-((E)-prop-1-en-1-yl)pyrrolidine-2-carboxamide