2-Deoxy-2-fluoro-D-glucose-13C5,d7 is the 13C-labeled and deuterium labeled 2-Deoxy-2-fluoro-D-glucose (HY-141637). 2-Deoxy-2-fluoro-D-glucose (2-Fluoro-2-deoxy-D-glucose) is a glucose analog that can be absorbed by cells. 2-Deoxy-2-fluoro-D-glucose is capable of being labelled with 18F for positron emission tomography (PET) imaging. 18F-2-Deoxy-2-fluoro-D-glucose can be used to detect breast cancer and gastric cancer[1][2].