54805-71-9 BRN 1331198 Benzeneacetic acid, 2-fluoro-alpha-(4-(2-fluorophenyl)-3-hydroxy-5-oxo-2(5H)-furanylidene)-, methyl ester Methyl 2-fluoro-alpha-(4-(2-fluorophenyl)-3-hydroxy-5-oxo-2(5H)-furanylidene)benzeneacetate