2-keto D-Glucose has been used as a building block in the synthesis of carbohydrates.{42035} It is an intermediate in the conversion of D-glucose (Item No. 23733) into D-fructose that was originally isolated from a variety of fungi, algae, and shellfish.{42036} It has slow-onset, long-lasting antioxidant properties in an electron paramagnetic resonance (EPR) assay.{42037} 2-keto D-Glucose has also been found as a glucose degradation product in heat-sterilized peritoneal dialysis fluids.{42038}