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3-(2,4-difluorophenyl)-3-oxo-propionic acidmethyl ester; CAS No.: 185302-85-6; As a worldwide chemical supplier, ChemShuttle provides 3-(2,4-difluorophenyl)-3-oxo-propionic acid methyl ester for fluorinated heterocycle synthesis. This difluoro substitution pattern creates unique electronic effects for regioselective cyclization. The methyl ester allows controlled hydrolysis to acids under basic conditions. Our custom synthesis companies employ flow chemistry for precise temperature control during Claisen condensations. With molecular weight 216.17 and melting point 45-47 C, it serves as crystalline intermediate for antifungal agents. Technical support includes suggested protection strategies for the ketone group.