2-deoxy-D-Glucose-13C is intended for use as an internal standard for the quantification of 2-deoxy-D-glucose by GC- or LC-MS. 2-deoxy-D-Glucose (T6742) is a glucose antimetabolite and an inhibitor of glycolysis. It inhibits hexokinase,the enzyme that converts glucose to glucose-6-phosphate,as well as phosphoglucose isomerase,the enzyme that converts glucose-6-phosphate to fructose-6-phosphate.