(3xi)-5-(Acetylamino)-3,5-dideoxy-3-(fluoro-18F)-D-glycero-D-galacto-2-nonulosonic acid 129950-58-9 3-(18F)Neu5Ac D-glycero-D-galacto-2-Nonulosonic acid, 5-(acetylamino)-3,5-dideoxy-3-(fluoro-18F)-, (3xi)- N-Acetyl-3-fluoroneuraminic acid